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Adham A, Le BT, Bonnal J, Bessaguet H, Ojardias E, Giraux P, Auzou P. Neural basis of lower-limb visual feedback therapy: an EEG study in healthy subjects. J Neuroeng Rehabil 2024; 21:114. [PMID: 38978051 PMCID: PMC11229246 DOI: 10.1186/s12984-024-01408-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 06/20/2024] [Indexed: 07/10/2024] Open
Abstract
BACKGROUND Video-feedback observational therapy (VOT) is an intensive rehabilitation technique based on movement repetition and visualization that has shown benefits for motor rehabilitation of the upper and lower limbs. Despite an increase in recent literature on the neurophysiological effects of VOT in the upper limb, there is little knowledge about the cortical effects of visual feedback therapies when applied to the lower limbs. The aim of our study was to better understand the neurophysiological effects of VOT. Thus, we identified and compared the EEG biomarkers of healthy subjects undergoing lower limb VOT during three tasks: passive observation, observation and motor imagery, observation and motor execution. METHODS We recruited 38 healthy volunteers and monitored their EEG activity while they performed a right ankle dorsiflexion task in the VOT. Three graded motor tasks associated with action observation were tested: action observation alone (O), motor imagery with action observation (OI), and motor execution synchronized with action observation (OM). The alpha and beta event-related desynchronization (ERD) and event-related synchronization (or beta rebound, ERS) rhythms were used as biomarkers of cortical activation and compared between conditions with a permutation test. Changes in connectivity during the task were computed with phase locking value (PLV). RESULTS During the task, in the alpha band, the ERD was comparable between O and OI activities across the precentral, central and parietal electrodes. OM involved the same regions but had greater ERD over the central electrodes. In the beta band, there was a gradation of ERD intensity in O, OI and OM over central electrodes. After the task, the ERS changes were weak during the O task but were strong during the OI and OM (Cz) tasks, with no differences between OI and OM. CONCLUSION Alpha band ERD results demonstrated the recruitment of mirror neurons during lower limb VOT due to visual feedback. Beta band ERD reflects strong recruitment of the sensorimotor cortex evoked by motor imagery and action execution. These results also emphasize the need for an active motor task, either motor imagery or motor execution task during VOT, to elicit a post-task ERS, which is absent during passive observation. Trial Registration NCT05743647.
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Affiliation(s)
- Ahmed Adham
- Department of Physical Rehabilitation, CHU of St Etienne, Saint-Étienne, France.
- Laboratory Trajectoires, INSERM 1028, CNRS 5229, University of Lyon-St-Etienne, Saint-Étienne, France.
- Univ. Grenoble Alpes, CEA, LETI, Clinatec, Grenoble, France.
| | - Ba Thien Le
- Department of Neurology, CHU of Orleans, Orleans, France
| | - Julien Bonnal
- Department of Neurology, CHU of Orleans, Orleans, France
| | - Hugo Bessaguet
- Department of Physical Rehabilitation, CHU of St Etienne, Saint-Étienne, France
- Jean Monnet University, Lyon 1, Université Savoie Mont-Blanc, "Laboratoire Inter-Universitaire de Biologie de La Motricité", 42023, Saint-Étienne, France
| | - Etienne Ojardias
- Department of Physical Rehabilitation, CHU of St Etienne, Saint-Étienne, France
- Jean Monnet University, Lyon 1, Université Savoie Mont-Blanc, "Laboratoire Inter-Universitaire de Biologie de La Motricité", 42023, Saint-Étienne, France
| | - Pascal Giraux
- Department of Physical Rehabilitation, CHU of St Etienne, Saint-Étienne, France
- Laboratory Trajectoires, INSERM 1028, CNRS 5229, University of Lyon-St-Etienne, Saint-Étienne, France
| | - Pascal Auzou
- Department of Neurology, CHU of Orleans, Orleans, France
- "Laboratoire Interdisciplinaire d'innovation et de Recherche en Santé d'Orléans", LI2RSO, University of Orleans, Orleans, France
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2
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Bolt NK, Loehr JD. Motor-related cortical oscillations distinguish one's own from a partner's contributions to a joint action. Biol Psychol 2024; 190:108804. [PMID: 38670429 DOI: 10.1016/j.biopsycho.2024.108804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 04/13/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024]
Abstract
The ability to distinguish between one's own and others' actions is a requirement for successful joint action. Such a distinction might be supported by dissociable motor activity underlying each partner's individual contributions to the joint action. However, little research has directly compared motor activity associated with one's own vs. others' actions during joint action. The current study investigated whether motor-related cortical oscillations distinguish between self- and partner-produced actions when partners take turns producing taps to meet a joint timing goal. Across two experiments, the degree of beta suppression differentiated one's own from a partner's actions, with more suppression occurring during one's own actions than during a partner's actions. Self-partner differences in mu suppression were also evident, particularly when partners produced actions in succession. Increased beta suppression was also observed during partners' actions when they were followed by one's own actions, suggesting that the coordination demands imposed by the joint action could affect the pattern of beta reactivity during a turn-taking joint action. Together, these findings demonstrate that dynamic patterns of motor activity underpin successful joint action and that periods of distinct motor activity are associated with one's own contributions to a joint action.
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Affiliation(s)
- Nicole K Bolt
- Department of Psychology and Health Studies, University of Saskatchewan, Canada.
| | - Janeen D Loehr
- Department of Psychology and Health Studies, University of Saskatchewan, Canada
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3
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Sandre A, Troller-Renfree SV, Giebler MA, Meyer JS, Noble KG. Prenatal family income, but not parental education, is associated with resting brain activity in 1-month-old infants. Sci Rep 2024; 14:13638. [PMID: 38871945 PMCID: PMC11176315 DOI: 10.1038/s41598-024-64498-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Accepted: 06/09/2024] [Indexed: 06/15/2024] Open
Abstract
Childhood socioeconomic disadvantage is associated with disparities in development and health, possibly through adaptations in children's brain function. However, it is not clear how early in development such neural adaptations might emerge. This study examined whether prenatal family socioeconomic status, operationalized as family income and average years of parental education, prospectively predicts individual differences in infant resting electroencephalography (EEG; theta, alpha, beta, and gamma power) at approximately 1 month of age (N = 160). Infants of mothers reporting lower family income showed more lower-frequency (theta) and less higher-frequency (beta and gamma) power. These associations held when adjusting for other prenatal and postnatal experiences, as well as infant demographic and health-related factors. In contrast, parental education was not significantly associated with infant EEG power in any frequency band. These data suggest that lower prenatal family income is associated with developmental differences in brain function that are detectable within the first month of life.
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Affiliation(s)
- Aislinn Sandre
- Department of Biobehavioral Sciences, Teachers College, Columbia University, 525W 120th Street, Russell Hall 21, New York, NY, 10027, USA
| | - Sonya V Troller-Renfree
- Department of Biobehavioral Sciences, Teachers College, Columbia University, 525W 120th Street, Russell Hall 21, New York, NY, 10027, USA
| | - Melissa A Giebler
- Department of Biobehavioral Sciences, Teachers College, Columbia University, 525W 120th Street, Russell Hall 21, New York, NY, 10027, USA
| | - Jerrold S Meyer
- Department of Psychological and Brain Sciences, University of Massachusetts Amherst, Amherst, MA, 01003, USA
| | - Kimberly G Noble
- Department of Biobehavioral Sciences, Teachers College, Columbia University, 525W 120th Street, Russell Hall 21, New York, NY, 10027, USA.
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Kong Y, Zhao C, Li D, Li B, Hu Y, Liu H, Woolgar A, Guo J, Song Y. Auditory change detection and visual selective attention: association between MMN and N2pc. Cereb Cortex 2024; 34:bhae175. [PMID: 38700440 DOI: 10.1093/cercor/bhae175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 04/02/2024] [Accepted: 04/16/2024] [Indexed: 05/05/2024] Open
Abstract
While the auditory and visual systems each provide distinct information to our brain, they also work together to process and prioritize input to address ever-changing conditions. Previous studies highlighted the trade-off between auditory change detection and visual selective attention; however, the relationship between them is still unclear. Here, we recorded electroencephalography signals from 106 healthy adults in three experiments. Our findings revealed a positive correlation at the population level between the amplitudes of event-related potential indices associated with auditory change detection (mismatch negativity) and visual selective attention (posterior contralateral N2) when elicited in separate tasks. This correlation persisted even when participants performed a visual task while disregarding simultaneous auditory stimuli. Interestingly, as visual attention demand increased, participants whose posterior contralateral N2 amplitude increased the most exhibited the largest reduction in mismatch negativity, suggesting a within-subject trade-off between the two processes. Taken together, our results suggest an intimate relationship and potential shared mechanism between auditory change detection and visual selective attention. We liken this to a total capacity limit that varies between individuals, which could drive correlated individual differences in auditory change detection and visual selective attention, and also within-subject competition between the two, with task-based modulation of visual attention causing within-participant decrease in auditory change detection sensitivity.
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Affiliation(s)
- Yuanjun Kong
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, 19 Xinjiekouwai Street, Beijing 100875, China
- MRC Cognition and Brain Sciences Unit, University of Cambridge, 15 Chaucer Road, Cambridge CB2 7EF, UK
| | - Chenguang Zhao
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, 19 Xinjiekouwai Street, Beijing 100875, China
| | - Dongwei Li
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, 19 Xinjiekouwai Street, Beijing 100875, China
- Department of Psychology, Faculty of Arts and Sciences, Beijing Normal University at Zhuhai, 18 Jinfeng Road, Zhuhai 519087, China
- Beijing Key Laboratory of Applied Experimental Psychology, National Demonstration Center for Experimental Psychology Education, Faculty of Psychology, Beijing Normal University, 19 Xinjiekouwai Street, Beijing 100875, China
| | - Bingkun Li
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, 19 Xinjiekouwai Street, Beijing 100875, China
| | - Yiqing Hu
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, 19 Xinjiekouwai Street, Beijing 100875, China
| | - Hongyu Liu
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, 19 Xinjiekouwai Street, Beijing 100875, China
| | - Alexandra Woolgar
- MRC Cognition and Brain Sciences Unit, University of Cambridge, 15 Chaucer Road, Cambridge CB2 7EF, UK
| | - Jialiang Guo
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, 19 Xinjiekouwai Street, Beijing 100875, China
| | - Yan Song
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, 19 Xinjiekouwai Street, Beijing 100875, China
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Colomer M, Zacharaki K, Sebastian-Galles N. Selective Action Prediction in Infancy Depending on Linguistic Cues: An EEG and Eyetracker Study. J Neurosci 2024; 44:e1301232024. [PMID: 38418219 PMCID: PMC10993032 DOI: 10.1523/jneurosci.1301-23.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 02/10/2024] [Accepted: 02/14/2024] [Indexed: 03/01/2024] Open
Abstract
Humans' capacity to predict actions and to socially categorize individuals is at the basis of social cognition. Such capacities emerge in early infancy. By 6 months of age, infants predict others' reaching actions considering others' epistemic state. At a similar age, infants are biased to attend to and interact with more familiar individuals, considering adult-like social categories such as the language people speak. We report that these two core processes are interrelated early on in infancy. In a belief-based action prediction task, 6-month-old infants (males and females) presented with a native speaker generated online predictions about the agent's actions, as revealed by the activation of participants' sensorimotor areas before the agent's movement. However, infants who were presented with a foreign speaker did not recruit their motor system before the agent's action. The eyetracker analysis provided further evidence that linguistic group familiarity influences how infants predict others' actions, as only infants presented with a native speaker modified their attention to the stimuli as a function of the agent's forthcoming behavior. The current findings suggest that infants' emerging capacity to predict others' actions is modulated by social cues, such as others' linguistic group. A facilitation to predict and encode the actions of native speakers relative to foreign speakers may explain, in part, why infants preferentially attend to, imitate, and learn from the actions of native speakers.
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Affiliation(s)
- M Colomer
- Center for Brain and Cognition (CBC), Universitat Pompeu Fabra, Barcelona 08018, Spain
- Department of Psychology, University of Chicago, Chicago, Illinois 60637
| | - K Zacharaki
- Center for Brain and Cognition (CBC), Universitat Pompeu Fabra, Barcelona 08018, Spain
| | - N Sebastian-Galles
- Center for Brain and Cognition (CBC), Universitat Pompeu Fabra, Barcelona 08018, Spain
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Chirumamilla VC, Hitchings L, Mulkey SB, Anwar T, Baker R, Larry Maxwell G, De Asis-Cruz J, Kapse K, Limperopoulos C, du Plessis A, Govindan RB. Association of brain functional connectivity with neurodevelopmental outcomes in healthy full-term newborns. Clin Neurophysiol 2024; 160:68-74. [PMID: 38412745 DOI: 10.1016/j.clinph.2024.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 02/03/2024] [Accepted: 02/12/2024] [Indexed: 02/29/2024]
Abstract
OBJECTIVE To study the association between neurodevelopmental outcomes and functional brain connectivity (FBC) in healthy term infants. METHODS This is a retrospective study of prospectively collected High-density electroencephalography (HD-EEG) from newborns within 72 hours from birth. Developmental assessments were performed at two years of age using the Bayley Scales of Infant Development-III (BSID-III) measuring cognitive, language, motor, and socio-emotional scores. The FBC was calculated using phase synchronization analysis of source signals in delta, theta, alpha, beta, and gamma frequency bands and its association with neurodevelopmental score was assessed with stepwise regression. RESULTS 47/163 had both HD-EEG and BSID-III scores. The FBC of frontal region was associated with cognitive score in the theta band (corrected p, regression coefficients range: p < 0.01, 1.66-1.735). Language scores were significantly associated with connectivity in all frequency bands, predominantly in the left hemisphere (p < 0.01, -2.74-2.40). The FBC of frontal and occipital brain regions of both hemispheres was related to motor score and socio-emotional development in theta, alpha, and gamma frequency bands (p < 0.01, -2.16-2.97). CONCLUSIONS Functional connectivity of higher-order processing is already present at term age. SIGNIFICANCE The FBC might be used to guide interventions for optimizing subsequent neurodevelopment even in low-risk newborns.
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Affiliation(s)
- Venkata C Chirumamilla
- Prenatal Pediatrics Institute, Children's National Hospital, Washington, DC, United States
| | - Laura Hitchings
- Prenatal Pediatrics Institute, Children's National Hospital, Washington, DC, United States
| | - Sarah B Mulkey
- Prenatal Pediatrics Institute, Children's National Hospital, Washington, DC, United States; Department of Pediatrics, The George Washington University School of Medicine and Health Sciences, Washington, DC, United States; Department of Neurology, The George Washington University School of Medicine and Health Sciences, Washington, DC, United States
| | - Tayyba Anwar
- Department of Pediatrics, The George Washington University School of Medicine and Health Sciences, Washington, DC, United States; Department of Neurology, The George Washington University School of Medicine and Health Sciences, Washington, DC, United States; Department of Neurology, Children's National Hospital, Washington, DC, United States
| | - Robin Baker
- Inova Women's and Children's Hospital, Fairfax, VA, United States; Fairfax Neonatal Associates, Fairfax, VA, United States
| | - G Larry Maxwell
- Inova Women's and Children's Hospital, Fairfax, VA, United States
| | | | - Kushal Kapse
- Developing Brain Institute, Children's National Hospital, Washington, DC, United States
| | - Catherine Limperopoulos
- Developing Brain Institute, Children's National Hospital, Washington, DC, United States; Division of Diagnostic Imaging and Radiology, Children's National Hospital, Washington, DC, United States
| | - Adre du Plessis
- Prenatal Pediatrics Institute, Children's National Hospital, Washington, DC, United States; Department of Pediatrics, The George Washington University School of Medicine and Health Sciences, Washington, DC, United States
| | - R B Govindan
- Prenatal Pediatrics Institute, Children's National Hospital, Washington, DC, United States; Department of Pediatrics, The George Washington University School of Medicine and Health Sciences, Washington, DC, United States.
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7
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Díaz Rivera MN, Amoruso L, Bocanegra Y, Suárez JX, Moreno L, Muñoz E, Birba A, García AM. Electrophysiological alterations during action semantic processing in Parkinson's disease. Neurobiol Aging 2024; 136:78-87. [PMID: 38330642 PMCID: PMC10942755 DOI: 10.1016/j.neurobiolaging.2024.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 12/29/2023] [Accepted: 01/04/2024] [Indexed: 02/10/2024]
Abstract
Assessments of action semantics consistently reveal markers of Parkinson's disease (PD). However, neurophysiological signatures of the domain remain under-examined in this population, especially under conditions that allow patients to process stimuli without stringent time constraints. Here we assessed event-related potentials and time-frequency modulations in healthy individuals (HPs) and PD patients during a delayed-response semantic judgment task involving related and unrelated action-picture pairs. Both groups had shorter response times for related than for unrelated trials, but they exhibited discrepant electrophysiological patterns. HPs presented significantly greater N400 amplitudes as well as theta enhancement and mu desynchronization for unrelated relative to related trials. Conversely, N400 and theta modulations were abolished in the patients, who further exhibited a contralateralized cluster in the mu range. None of these patterns were associated with the participants' cognitive status. Our results suggest that PD involves multidimensional neurophysiological disruptions during action-concept processing, even under task conditions that elicit canonical behavioral effects. New constraints thus emerge for translational neurocognitive models of the disease.
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Affiliation(s)
- Mariano N Díaz Rivera
- Centro de Neurociencias Cognitivas, Universidad de San Andrés (UdeSA), Buenos Aires, Argentina; National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
| | - Lucía Amoruso
- Centro de Neurociencias Cognitivas, Universidad de San Andrés (UdeSA), Buenos Aires, Argentina; Basque Center on Cognition, Brain and Language (BCBL), Spain; Ikerbasque, Basque Foundation for Science, Spain
| | - Yamile Bocanegra
- Grupo de Neurociencias de Antioquia, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia; Grupo Neuropsicología y Conducta (GRUNECO), Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | - Jazmin X Suárez
- Grupo Neuropsicología y Conducta (GRUNECO), Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | - Leonardo Moreno
- Sección de Neurología, Hospital Pablo Tobón Uribe, Medellín, Colombia
| | - Edinson Muñoz
- Departamento de Lingüística y Literatura, Facultad de Humanidades, Universidad de Santiago de Chile, Santiago, Chile
| | - Agustina Birba
- Centro de Neurociencias Cognitivas, Universidad de San Andrés (UdeSA), Buenos Aires, Argentina; Instituto Universitario de Neurociencia (IUNE), Universidad de La Laguna, La Laguna, Santa Cruz de Tenerife, Spain
| | - Adolfo M García
- Centro de Neurociencias Cognitivas, Universidad de San Andrés (UdeSA), Buenos Aires, Argentina; Departamento de Lingüística y Literatura, Facultad de Humanidades, Universidad de Santiago de Chile, Santiago, Chile; Global Brain Health Institute, University of California, San Francisco, United States.
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Karimova ED, Ovakimian AS, Katermin NS. Live vs video interaction: sensorimotor and visual cortical oscillations during action observation. Cereb Cortex 2024; 34:bhae168. [PMID: 38679481 DOI: 10.1093/cercor/bhae168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 03/28/2024] [Accepted: 04/01/2024] [Indexed: 05/01/2024] Open
Abstract
Increasingly, in the field of communication, education, and business, people are switching to video interaction, and interlocutors frequently complain that the perception of nonverbal information and concentration suffer. We investigated this issue by analyzing electroencephalogram (EEG) oscillations of the sensorimotor (mu rhythm) and visual (alpha rhythm) cortex of the brain in an experiment with action observation live and on video. The mu rhythm reflects the activity of the mirror neuron system, and the occipital alpha rhythm shows the level of visual attention. We used 32-channel EEG recorded during live and video action observation in 83 healthy volunteers. The ICA method was used for selecting the mu- and alpha-components; the Fourier Transform was used to calculate the suppression index relative to the baseline (stationary demonstrator) of the rhythms. The main range of the mu rhythm was indeed sensitive to social movement and was highly dependent on the conditions of interaction-live or video. The upper mu-range appeared to be less sensitive to the conditions, but more sensitive to different movements. The alpha rhythm did not depend on the type of movement; however, a live performance initially caused a stronger concentration of visual attention. Thus, subtle social and nonverbal perceptions may suffer in remote video interactions.
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Affiliation(s)
- Ekaterina D Karimova
- Laboratory of Applied Physiology of Human Higher Nervous Activity, Institute of Higher Nervous Activity and Neurophysiology of RAS (IHNA&NPh RAS), 5A Butlerova street, 117485 Moscow, the Russian Federation
| | - Alena S Ovakimian
- Laboratory of Applied Physiology of Human Higher Nervous Activity, Institute of Higher Nervous Activity and Neurophysiology of RAS (IHNA&NPh RAS), 5A Butlerova street, 117485 Moscow, the Russian Federation
| | - Nikita S Katermin
- Flow cytometry data processing group, BostonGene Technologies, Hrachya Qochar Str., 2A, 0033, Yerevan, Armenia
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Botta A, Zhao M, Samogin J, Pelosin E, Bonassi G, Lagravinese G, Mantini D, Avenanti A, Avanzino L. Early modulations of neural oscillations during the processing of emotional body language. Psychophysiology 2024; 61:e14436. [PMID: 37681463 DOI: 10.1111/psyp.14436] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 08/01/2023] [Accepted: 08/24/2023] [Indexed: 09/09/2023]
Abstract
The processing of threat-related emotional body language (EBL) has been shown to engage sensorimotor cortical areas early on and induce freezing in the observers' motor system, particularly when observing fearful EBL. To provide insights into the interplay between somatosensory and motor areas during observation of EBL, here, we used high-density electroencephalography (hd-EEG) in healthy humans while they observed EBL stimuli involving fearful and neutral expressions. To capture early sensorimotor brain response, we focused on P100 fronto-central event-related potentials (ERPs) and event-related desynchronization/synchronization (ERD/ERS) in the mu-alpha (8-13 Hz) and lower beta (13-20 Hz) bands over the primary motor (M1) and somatosensory (S1) cortices. Source-level ERP and ERD/ERS analyses were conducted using eLORETA. Results revealed higher P100 amplitudes in motor and premotor channels for 'Neutral' compared with 'Fear'. Additionally, analysis of ERD/ERS showed increased beta band desynchronization in M1 for 'Neutral', and the opposite pattern in S1. Source-level estimation showed significant differences between conditions mainly observed in the beta band over sensorimotor areas. These findings provide high-temporal resolution evidence suggesting that seeing fearful EBL induces early activation of somatosensory areas, which in turn could suppress M1 activity. These findings highlight early dynamics within the observer's sensorimotor system and hint at a sensorimotor mechanism supporting freezing during the processing of EBL.
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Affiliation(s)
| | - Mingqi Zhao
- Movement Control and Neuroplasticity Research Group, KU Leuven, Leuven, Belgium
| | - Jessica Samogin
- Movement Control and Neuroplasticity Research Group, KU Leuven, Leuven, Belgium
| | - Elisa Pelosin
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, and Maternal Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Gaia Bonassi
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, and Maternal Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Giovanna Lagravinese
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, and Maternal Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Dante Mantini
- Movement Control and Neuroplasticity Research Group, KU Leuven, Leuven, Belgium
| | - Alessio Avenanti
- Centro studi e ricerche in Neuroscienze Cognitive, Dipartimento di Psicologia "Renzo Canestrari", Campus Cesena, Alma Mater Studiorum Università di Bologna, Cesena, Italy
- Centro de Investigación en Neuropsicología y Neurociencias Cognitivas, Universidad Católica del Maule, Talca, Chile
| | - Laura Avanzino
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Experimental Medicine (DIMES), Section of Human Physiology, University of Genoa, Genoa, Italy
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Chizhikova AA. [Electroencephalography: features of the obtained data and its applicability in psychiatry]. Zh Nevrol Psikhiatr Im S S Korsakova 2024; 124:31-39. [PMID: 38884427 DOI: 10.17116/jnevro202412405131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
Presently, there is an increased interest in expanding the range of diagnostic and scientific applications of electroencephalography (EEG). The method is attractive due to non-invasiveness, availability of equipment with a wide range of modifications for various purposes, and the ability to track the dynamics of brain electrical activity directly and with high temporal resolution. Spectral, coherency and other types of analysis provide volumetric information about its power, frequency distribution, spatial organization of signal and its self-similarity in dynamics or in different sections at a time. The development of computing technologies provides processing of volumetric data obtained using EEG and a qualitatively new level of their analysis using various mathematical models. This review discusses benefits and limitations of using the EEG in scientific research, currently known interpretation of the obtained data and its physiological and pathological correlates. It is expected to determine the complex relationship between the parameters of brain electrical activity and various functional and pathological conditions. The possibility of using EEG characteristics as biomarkers of various physiological and pathological conditions is being considered. Electronic databases, including MEDLINE (on PubMed), Google Scholar and Russian Scientific Citation Index (RSCI, on elibrary.ru), scientific journals and books were searched to find relevant studies.
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Affiliation(s)
- A A Chizhikova
- Centre for Strategic Planning and Management of Biomedical Health Risks of the Federal Medical Biological Agency, Moscow, Russia
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Nir Y, de Lecea L. Sleep and vigilance states: Embracing spatiotemporal dynamics. Neuron 2023; 111:1998-2011. [PMID: 37148873 DOI: 10.1016/j.neuron.2023.04.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 02/08/2023] [Accepted: 04/12/2023] [Indexed: 05/08/2023]
Abstract
The classic view of sleep and vigilance states is a global stationary perspective driven by the interaction between neuromodulators and thalamocortical systems. However, recent data are challenging this view by demonstrating that vigilance states are highly dynamic and regionally complex. Spatially, sleep- and wake-like states often co-occur across distinct brain regions, as in unihemispheric sleep, local sleep in wakefulness, and during development. Temporally, dynamic switching prevails around state transitions, during extended wakefulness, and in fragmented sleep. This knowledge, together with methods monitoring brain activity across multiple regions simultaneously at millisecond resolution with cell-type specificity, is rapidly shifting how we consider vigilance states. A new perspective incorporating multiple spatial and temporal scales may have important implications for considering the governing neuromodulatory mechanisms, the functional roles of vigilance states, and their behavioral manifestations. A modular and dynamic view highlights novel avenues for finer spatiotemporal interventions to improve sleep function.
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Affiliation(s)
- Yuval Nir
- Department of Physiology and Pharmacology, Faculty of Medicine, Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel; Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel; The Sieratzki-Sagol Center for Sleep Medicine, Tel-Aviv Sourasky Medical Center, Tel-Aviv 64239, Israel.
| | - Luis de Lecea
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA.
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12
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Simon-Martinez C, Antoniou MP, Bouthour W, Bavelier D, Levi D, Backus BT, Dornbos B, Blaha JJ, Kropp M, Müller H, Murray M, Thumann G, Steffen H, Matusz PJ. Stereoptic serious games as a visual rehabilitation tool for individuals with a residual amblyopia (AMBER trial): a protocol for a crossover randomized controlled trial. BMC Ophthalmol 2023; 23:220. [PMID: 37198558 DOI: 10.1186/s12886-023-02944-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 04/25/2023] [Indexed: 05/19/2023] Open
Abstract
BACKGROUND Amblyopia is the most common developmental vision disorder in children. The initial treatment consists of refractive correction. When insufficient, occlusion therapy may further improve visual acuity. However, the challenges and compliance issues associated with occlusion therapy may result in treatment failure and residual amblyopia. Virtual reality (VR) games developed to improve visual function have shown positive preliminary results. The aim of this study is to determine the efficacy of these games to improve vision, attention, and motor skills in patients with residual amblyopia and identify brain-related changes. We hypothesize that a VR-based training with the suggested ingredients (3D cues and rich feedback), combined with increasing the difficulty level and the use of various games in a home-based environment is crucial for treatment efficacy of vision recovery, and may be particularly effective in children. METHODS The AMBER study is a randomized, cross-over, controlled trial designed to assess the effect of binocular stimulation (VR-based stereoptic serious games) in individuals with residual amblyopia (n = 30, 6-35 years of age), compared to refractive correction on vision, selective attention and motor control skills. Additionally, they will be compared to a control group of age-matched healthy individuals (n = 30) to account for the unique benefit of VR-based serious games. All participants will play serious games 30 min per day, 5 days per week, for 8 weeks. The games are delivered with the Vivid Vision Home software. The amblyopic cohort will receive both treatments in a randomized order according to the type of amblyopia, while the control group will only receive the VR-based stereoscopic serious games. The primary outcome is visual acuity in the amblyopic eye. Secondary outcomes include stereoacuity, functional vision, cortical visual responses, selective attention, and motor control. The outcomes will be measured before and after each treatment with 8-week follow-up. DISCUSSION The VR-based games used in this study have been conceived to deliver binocular visual stimulation tailored to the individual visual needs of the patient, which will potentially result in improved basic and functional vision skills as well as visual attention and motor control skills. TRIAL REGISTRATION This protocol is registered on ClinicalTrials.gov (identifier: NCT05114252) and in the Swiss National Clinical Trials Portal (identifier: SNCTP000005024).
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Affiliation(s)
- Cristina Simon-Martinez
- University of Applied Sciences Western Switzerland (HES-SO) Valais-Wallis, Rue de Technopole 3, 3960, Sierre, Switzerland.
- Department of Ophthalmology, University Hospitals of Geneva, Geneva, Switzerland.
- The Sense Innovation and Research Center, Lausanne and Sion, Sion, Switzerland.
- Experimental Ophthalmology, University of Geneva, Geneva, Switzerland.
| | - Maria-Paraskevi Antoniou
- University of Applied Sciences Western Switzerland (HES-SO) Valais-Wallis, Rue de Technopole 3, 3960, Sierre, Switzerland
- Department of Ophthalmology, University Hospitals of Geneva, Geneva, Switzerland
- The Sense Innovation and Research Center, Lausanne and Sion, Sion, Switzerland
- Experimental Ophthalmology, University of Geneva, Geneva, Switzerland
| | - Walid Bouthour
- Department of Ophthalmology, University Hospitals of Geneva, Geneva, Switzerland
- Experimental Ophthalmology, University of Geneva, Geneva, Switzerland
| | - Daphne Bavelier
- Faculty of Psychology and Education Sciences, University of Geneva, Geneva, Switzerland
| | - Dennis Levi
- Herbert Wertheim School of Optometry & Vision Science, Helen Wills Neuroscience Institute, University of California Berkley, Berkley, CA, USA
| | - Benjamin T Backus
- Vivid Vision, Inc, 424 Treat Ave., Ste B, San Francisco, CA, 94110, USA
| | - Brian Dornbos
- Vivid Vision, Inc, 424 Treat Ave., Ste B, San Francisco, CA, 94110, USA
| | - James J Blaha
- Vivid Vision, Inc, 424 Treat Ave., Ste B, San Francisco, CA, 94110, USA
| | - Martina Kropp
- Department of Ophthalmology, University Hospitals of Geneva, Geneva, Switzerland
- Experimental Ophthalmology, University of Geneva, Geneva, Switzerland
| | - Henning Müller
- University of Applied Sciences Western Switzerland (HES-SO) Valais-Wallis, Rue de Technopole 3, 3960, Sierre, Switzerland
| | - Micah Murray
- The Sense Innovation and Research Center, Lausanne and Sion, Sion, Switzerland
- Institute of Health Sciences, School of Health Sciences, HES-SO Valais-Wallis, Sion, Switzerland
- Laboratory for Investigative Neurophysiology, Department of Radiology, Lausanne University Hospital, University of Lausanne (CHUV-UNIL), Lausanne, Switzerland
| | - Gabriele Thumann
- Department of Ophthalmology, University Hospitals of Geneva, Geneva, Switzerland
- Experimental Ophthalmology, University of Geneva, Geneva, Switzerland
| | - Heimo Steffen
- Department of Ophthalmology, University Hospitals of Geneva, Geneva, Switzerland
- Experimental Ophthalmology, University of Geneva, Geneva, Switzerland
| | - Pawel J Matusz
- University of Applied Sciences Western Switzerland (HES-SO) Valais-Wallis, Rue de Technopole 3, 3960, Sierre, Switzerland
- Department of Ophthalmology, University Hospitals of Geneva, Geneva, Switzerland
- The Sense Innovation and Research Center, Lausanne and Sion, Sion, Switzerland
- Experimental Ophthalmology, University of Geneva, Geneva, Switzerland
- Institute of Health Sciences, School of Health Sciences, HES-SO Valais-Wallis, Sion, Switzerland
- Laboratory for Investigative Neurophysiology, Department of Radiology, Lausanne University Hospital, University of Lausanne (CHUV-UNIL), Lausanne, Switzerland
- Department of Hearing & Speech Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
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13
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Guo J, Luo X, Kong Y, Li B, Si B, Sun L, Song Y. Abnormal Reactivity of Brain Oscillations to Visual Search Target in Children With Attention-Deficit/Hyperactivity Disorder. BIOLOGICAL PSYCHIATRY. COGNITIVE NEUROSCIENCE AND NEUROIMAGING 2023; 8:522-530. [PMID: 35292405 DOI: 10.1016/j.bpsc.2022.03.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 02/26/2022] [Accepted: 03/01/2022] [Indexed: 05/09/2023]
Abstract
BACKGROUND Previous studies have shown that impaired goal-directed alpha lateralization and functional disconnection within attention networks during the cue period are significant features of attention-deficit/hyperactivity disorder (ADHD). This study aimed to explore the role of brain oscillations in the visual search process, focusing on target-induced posterior alpha lateralization, midfrontal theta synchronization, and their functional connection in children with ADHD. METHODS Electroencephalograms were recorded from typically developing (TD) children (n = 72) and children with ADHD (n = 96) while they performed a visual search task. RESULTS Both the TD and ADHD groups showed significant midfrontal theta event-related synchronization (ERS) and posterior alpha lateralization. Compared with TD children, children with ADHD showed significantly lower theta ERS and higher target-induced alpha lateralization. TD children showed a positive trial-based correlation between theta ERS and alpha lateralization and a negative correlation between theta ERS and reaction time variability. However, all these correlations were absent in children with ADHD. CONCLUSIONS Abnormal brain oscillations in children with ADHD indicate insufficient executive control function and the compensation of attention networks for attention deficits in visual selective attention. Cross-frequency disconnection reflects the common deficiency of executive control in the gating of target information. Our findings provide novel evidence for interpreting the features of brain oscillations during stimulus-driven selective attention in children with ADHD.
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Affiliation(s)
- Jialiang Guo
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China; School of Systems Science, Beijing Normal University, Beijing, China
| | - Xiangsheng Luo
- Institute of Mental Health, Peking University Sixth Hospital, Beijing, China
| | - Yuanjun Kong
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Bingkun Li
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Bailu Si
- School of Systems Science, Beijing Normal University, Beijing, China
| | - Li Sun
- Institute of Mental Health, Peking University Sixth Hospital, Beijing, China; National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital, Beijing, China; Key Laboratory of Mental Health, Ministry of Health, Peking University, Beijing, China.
| | - Yan Song
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China; Center for Collaboration and Innovation in Brain and Learning Sciences, Beijing Normal University, Beijing, China.
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14
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Inamoto T, Ueda M, Ueno K, Shiroma C, Morita R, Naito Y, Ishii R. Motor-Related Mu/Beta Rhythm in Older Adults: A Comprehensive Review. Brain Sci 2023; 13:brainsci13050751. [PMID: 37239223 DOI: 10.3390/brainsci13050751] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/23/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
Mu rhythm, also known as the mu wave, occurs on sensorimotor cortex activity at rest, and the frequency range is defined as 8-13Hz, the same frequency as the alpha band. Mu rhythm is a cortical oscillation that can be recorded from the scalp over the primary sensorimotor cortex by electroencephalogram (EEG) and magnetoencephalography (MEG). The subjects of previous mu/beta rhythm studies ranged widely from infants to young and older adults. Furthermore, these subjects were not only healthy people but also patients with various neurological and psychiatric diseases. However, very few studies have referred to the effect of mu/beta rhythm with aging, and there was no literature review about this theme. It is important to review the details of the characteristics of mu/beta rhythm activity in older adults compared with young adults, focusing on age-related mu rhythm changes. By comprehensive review, we found that, compared with young adults, older adults showed mu/beta activity change in four characteristics during voluntary movement, increased event-related desynchronization (ERD), earlier beginning and later end, symmetric pattern of ERD and increased recruitment of cortical areas, and substantially reduced beta event-related desynchronization (ERS). It was also found that mu/beta rhythm patterns of action observation were changing with aging. Future work is needed in order to investigate not only the localization but also the network of mu/beta rhythm in older adults.
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Affiliation(s)
- Takashi Inamoto
- Graduate School of Comprehensive Rehabilitation, Osaka Prefecture University, Osaka 583-8555, Japan
- Faculty of Health Sciences, Kansai University of Health Sciences, Osaka 590-0482, Japan
| | - Masaya Ueda
- Graduate School of Rehabilitation Science, Osaka Metropolitan University, Osaka 583-8555, Japan
| | - Keita Ueno
- Graduate School of Rehabilitation Science, Osaka Metropolitan University, Osaka 583-8555, Japan
| | - China Shiroma
- Graduate School of Rehabilitation Science, Osaka Metropolitan University, Osaka 583-8555, Japan
| | - Rin Morita
- Graduate School of Rehabilitation Science, Osaka Metropolitan University, Osaka 583-8555, Japan
| | - Yasuo Naito
- Graduate School of Rehabilitation Science, Osaka Metropolitan University, Osaka 583-8555, Japan
| | - Ryouhei Ishii
- Graduate School of Rehabilitation Science, Osaka Metropolitan University, Osaka 583-8555, Japan
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita 565-0871, Japan
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15
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Köster M, Meyer M. Down and up! Does the mu rhythm index a gating mechanism in the developing motor system? Dev Cogn Neurosci 2023; 60:101239. [PMID: 37030147 PMCID: PMC10113759 DOI: 10.1016/j.dcn.2023.101239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 03/20/2023] [Accepted: 04/03/2023] [Indexed: 04/10/2023] Open
Abstract
Developmental research on action processing in the motor cortex relies on a key neural marker - a decrease in 6-12 Hz activity (coined mu suppression). However, recent evidence points towards an increase in mu power, specific for the observation of others' actions. Complementing the findings on mu suppression, this raises the critical question for the functional role of the mu rhythm in the developing motor system. We here discuss a potential solution to this seeming controversy by suggesting a gating function of the mu rhythm: A decrease in mu power may index the facilitation, while an increase may index the inhibition of motor processes, which are critical during action observation. This account may advance our conception of action understanding in early brain development and points towards critical directions for future research.
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Affiliation(s)
- Moritz Köster
- University of Regensburg, Institute of Psychology, Sedanstraße 1, 93055 Regensburg, Germany.
| | - Marlene Meyer
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, the Netherlands; Department of Psychology, University of Chicago, USA.
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16
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Salo VC, Debnath R, Rowe ML, Fox NA. Experience with pointing gestures facilitates infant vocabulary growth through enhancement of sensorimotor brain activity. Dev Psychol 2023; 59:676-690. [PMID: 36480360 PMCID: PMC10038843 DOI: 10.1037/dev0001493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Exposure to communicative gestures, through their parents' use of gestures, is associated with infants' language development. However, the mechanisms supporting this link are not fully understood. In adults, sensorimotor brain activity occurs while processing communicative stimuli, including both spoken language and gestures. Using electroencephalogram (EEG) mu rhythm desynchronization (mu ERD), a marker of sensorimotor activity, we examined whether experimental manipulation of infants' exposure to gestures would affect language development, and specifically whether such an effect would be mediated by changes in sensorimotor brain activity. Mu ERD was measured in 10- to 12-month-old infants (N = 81; 42 male; 15% Hispanic, 62% White) recruited from counties surrounding a large mid-Atlantic university while they observed an experimenter gesturing toward or grasping an object. Half of the infants were randomized to receive increased gesture exposure through a parent-directed training. All 81 infants provided behavioral (infant and parent pointing and infant vocabulary) data prior to intervention and 72 provided behavioral data postintervention. Forty-two infants provided usable (post artifact removal) EEG data prior to intervention and 40 infants provided usable EEG data post-intervention. Twenty-nine infants provided usable EEG data at both sessions. Increased parent gesture due to the intervention was associated with increased infant right lateralized mu ERD at follow-up, but only while observing the experimenter gesturing not grasping. Increased mu ERD, again only while observing the experimenter gesture, was associated with increased infant receptive vocabulary. This is the first evidence suggesting that increasing exposure to gestures may impact infants' language development through an effect on sensorimotor brain activity. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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Affiliation(s)
- Virginia C Salo
- Child Development and Behavior Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development
| | - Ranjan Debnath
- Center for Behavioral Brain Sciences, Leibniz Institute for Neurobiology
| | | | - Nathan A Fox
- Department of Human Development and Quantitative Methodology, University of Maryland, College Park
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17
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Su WC, Dashtestani H, Miguel HO, Condy E, Buckley A, Park S, Perreault JB, Nguyen T, Zeytinoglu S, Millerhagen J, Fox N, Gandjbakhche A. Simultaneous multimodal fNIRS-EEG recordings reveal new insights in neural activity during motor execution, observation, and imagery. Sci Rep 2023; 13:5151. [PMID: 36991003 PMCID: PMC10060581 DOI: 10.1038/s41598-023-31609-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 03/14/2023] [Indexed: 03/31/2023] Open
Abstract
Motor execution, observation, and imagery are important skills used in motor learning and rehabilitation. The neural mechanisms underlying these cognitive-motor processes are still poorly understood. We used a simultaneous recording of functional near-infrared spectroscopy (fNIRS) and electroencephalogram (EEG) to elucidate the differences in neural activity across three conditions requiring these processes. Additionally, we used a new method called structured sparse multiset Canonical Correlation Analysis (ssmCCA) to fuse the fNIRS and EEG data and determine the brain regions of neural activity consistently detected by both modalities. Unimodal analyses revealed differentiated activation between conditions; however, the activated regions did not fully overlap across the two modalities (fNIRS: left angular gyrus, right supramarginal gyrus, as well as right superior and inferior parietal lobes; EEG: bilateral central, right frontal, and parietal). These discrepancies might be because fNIRS and EEG detect different signals. Using fused fNIRS-EEG data, we consistently found activation over the left inferior parietal lobe, superior marginal gyrus, and post-central gyrus during all three conditions, suggesting that our multimodal approach identifies a shared neural region associated with the Action Observation Network (AON). This study highlights the strengths of using the multimodal fNIRS-EEG fusion technique for studying AON. Neural researchers should consider using the multimodal approach to validate their findings.
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Affiliation(s)
- Wan-Chun Su
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - Hadis Dashtestani
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - Helga O Miguel
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - Emma Condy
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - Aaron Buckley
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - Soongho Park
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - John B Perreault
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - Thien Nguyen
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - Selin Zeytinoglu
- Department of Human Development and Quantitative Methodology, University of Maryland, College Park, MD, USA
| | - John Millerhagen
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - Nathan Fox
- Department of Human Development and Quantitative Methodology, University of Maryland, College Park, MD, USA
| | - Amir Gandjbakhche
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, USA.
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18
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Tool use acquisition induces a multifunctional interference effect during object processing: evidence from the sensorimotor mu rhythm. Exp Brain Res 2023; 241:1145-1157. [PMID: 36920527 DOI: 10.1007/s00221-023-06595-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 02/27/2023] [Indexed: 03/16/2023]
Abstract
A fundamental characteristic of human development is acquiring and accumulating tool use knowledge through observation and sensorimotor experience. Recent studies showed that, in children and adults, different action possibilities to grasp-to-move and grasp-to-use objects generate a conflict that extinguishes neural motor resonance phenomena during visual object processing. In this study, a training protocol coupled with EEG recordings was administered in virtual reality to healthy adults to evaluate whether a similar conflict occurs between novel tool use knowledge. Participants perceived and manipulated two novel 3D tools trained beforehand with either single or double-usage. A weaker reduction of mu-band (10-13 Hz) power, accompanied by a reduced inter-trial phase coherence, was recorded during the perception of the tool associated with the double-usage. These effects started within the first 200 ms of visual object processing and were predominantly recorded over the left motor system. Furthermore, interacting with the double usage tool delayed grasp-to-reach movements. The results highlight a multifunctional interference effect, such as tool use acquisition reduces the neural motor resonance phenomenon and inhibits the activation of the motor system during subsequent object recognition. These results imply that learned tool use information guides sensorimotor processes of objects.
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19
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Wamain Y, Godard M, Puffet AS, Delepoulle S, Kalénine S. Congruent action context releases Mu rhythm desynchronization when visual objects activate competing action representations. Cortex 2023; 161:65-76. [PMID: 36913823 DOI: 10.1016/j.cortex.2023.01.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 11/15/2022] [Accepted: 01/23/2023] [Indexed: 02/24/2023]
Abstract
Recent findings demonstrated that object perception is affected by the competition between action representations. Simultaneous activation of distinct structural ("grasp-to-move") and functional ("grasp-to-use") action representations slows down perceptual judgements on objects. At the brain level, competition reduces motor resonance effects during manipulable object perception, reflected by an extinction of μ rhythm desynchronization. However, how this competition is solved in the absence of object-directed action remains unclear. The present study investigates the role of context in the resolution of the competition between conflicting action representations during mere object perception. To this aim, thirty-eight volunteers were instructed to perform a reachability judgment task on 3D objects presented at different distances in a virtual environment. Objects were conflictual objects associated with distinct structural and functional action representations. Verbs were used to provide a neutral or congruent action context prior or after object presentation. Neurophysiological correlates of the competition between action representation were recorded using EEG. The main result showed a release of μ rhythm desynchronization when reachable conflictual objects were presented with a congruent action context. Context influenced μ rhythm desynchronization when the action context was provided prior or after object presentation in a time-window compatible with object-context integration (around 1000 ms after the presentation of the first stimulus). These findings revealed that action context biases competition between co-activated action representations during mere object perception and demonstrated that μ rhythm desynchronization may be an index of activation but also competition between action representations in perception.
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Affiliation(s)
- Yannick Wamain
- Univ. Lille, CNRS, UMR 9193 - SCALab - Sciences Cognitives et Sciences Affectives, F-59000 Lille, France.
| | - Marc Godard
- Univ. Lille, CNRS, UMR 9193 - SCALab - Sciences Cognitives et Sciences Affectives, F-59000 Lille, France
| | - Anne-Sophie Puffet
- Univ. Lille, CNRS, UMR 9193 - SCALab - Sciences Cognitives et Sciences Affectives, F-59000 Lille, France
| | - Samuel Delepoulle
- Univ. Littoral Côte D'Opale, EA 4491 - LISIC - Informatique Signal et Image de La Côte D'Opale, F-62228, France
| | - Solène Kalénine
- Univ. Lille, CNRS, UMR 9193 - SCALab - Sciences Cognitives et Sciences Affectives, F-59000 Lille, France
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20
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Temporiti F, Calcagno A, Coelli S, Marino G, Gatti R, Bianchi AM, Galli M. Early sleep after action observation and motor imagery training boosts improvements in manual dexterity. Sci Rep 2023; 13:2609. [PMID: 36788349 PMCID: PMC9929332 DOI: 10.1038/s41598-023-29820-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
The systematic observation and imagination of actions promotes acquisition of motor skills. Furthermore, studies demonstrated that early sleep after practice enhances motor learning through an offline stabilization process. Here, we investigated behavioral effects and neurodynamical correlates of early sleep after action observation and motor imagery training (AO + MI-training) on motor learning in terms of manual dexterity. Forty-five healthy participants were randomized into three groups receiving a 3 week intervention consisting of AO + MI-training immediately before sleeping or AO + MI-training at least 12 h before sleeping or a control stimulation. AO + MI-training implied the observation and motor imagery of transitive manual dexterity tasks, whereas the control stimulation consisted of landscape video-clips observation. Manual dexterity was assessed using functional tests, kinematic and neurophysiological outcomes before and after the training and at 1-month follow-up. AO + MI-training improved manual dexterity, but subjects performing AO + MI-training followed by early sleep had significantly larger improvements than those undergoing the same training at least 12 h before sleeping. Behavioral findings were supported by neurodynamical correlates during motor performance and additional sleep-dependent benefits were also detected at 1 month follow-up. These findings introduce a new approach to enhance the acquisition of new motor skills or facilitate recovery in patients with motor impairments.
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Affiliation(s)
- Federico Temporiti
- Physiotherapy Unit, Humanitas Clinical and Research Center - IRCCS, Via Manzoni 56, Rozzano, Milan, Italy.
- Department of Electronic, Information and Bioengineering, Politecnico Di Milano, Via Ponzio 34, Milan, Italy.
| | - Alessandra Calcagno
- Department of Electronic, Information and Bioengineering, Politecnico Di Milano, Via Ponzio 34, Milan, Italy
| | - Stefania Coelli
- Department of Electronic, Information and Bioengineering, Politecnico Di Milano, Via Ponzio 34, Milan, Italy
| | - Giorgia Marino
- Physiotherapy Unit, Humanitas Clinical and Research Center - IRCCS, Via Manzoni 56, Rozzano, Milan, Italy
| | - Roberto Gatti
- Physiotherapy Unit, Humanitas Clinical and Research Center - IRCCS, Via Manzoni 56, Rozzano, Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, Milan, Italy
| | - Anna Maria Bianchi
- Department of Electronic, Information and Bioengineering, Politecnico Di Milano, Via Ponzio 34, Milan, Italy
| | - Manuela Galli
- Department of Electronic, Information and Bioengineering, Politecnico Di Milano, Via Ponzio 34, Milan, Italy
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21
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Ghilardi T, Meyer M, Hunnius S. Predictive motor activation: Modulated by expectancy or predictability? Cognition 2023; 231:105324. [PMID: 36402084 DOI: 10.1016/j.cognition.2022.105324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 09/26/2022] [Accepted: 11/07/2022] [Indexed: 11/18/2022]
Abstract
Predicting actions is a fundamental ability that helps us to comprehend what is happening in our environment and to interact with others. The motor system was previously identified as source of action predictions. Yet, which aspect of the statistical likelihood of upcoming actions the motor system is sensitive to remains an open question. This EEG study investigated how regularities in observed actions are reflected in the motor system and utilized to predict upcoming actions. Prior to measuring EEG, participants watched videos of action sequences with different transitional probabilities. After training, participants' brain activity over motor areas was measured using EEG while watching videos of action sequences with the same statistical structure. Focusing on the mu and beta frequency bands we tested whether activity of the motor system reflects the statistical likelihood of upcoming actions. We also explored two distinct aspects of the statistical structure that capture different prediction processes, expectancy and predictability. Expectancy describes participants' expectation of the most likely action, whereas predictability represents all possible actions and their relative probabilities. Results revealed that mu and beta oscillations play different roles during action prediction. While the mu rhythm reflected anticipatory activity without any link to the statistical structure, the beta rhythm was related to the expectancy of an action. Our findings support theories proposing that the motor system underlies action prediction, and they extend such theories by showing that multiple forms of statistical information are extracted when observing action sequences. This information is integrated in the prediction generated by the neural motor system of which action is going to happen next.
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Affiliation(s)
- Tommaso Ghilardi
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Thomas van Aquinostraat 4, 6525GD Nijmegen, the Netherlands.
| | - Marlene Meyer
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Thomas van Aquinostraat 4, 6525GD Nijmegen, the Netherlands
| | - Sabine Hunnius
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Thomas van Aquinostraat 4, 6525GD Nijmegen, the Netherlands
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22
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Syrov N, Yakovlev L, Miroshnikov A, Kaplan A. Beyond passive observation: feedback anticipation and observation activate the mirror system in virtual finger movement control via P300-BCI. Front Hum Neurosci 2023; 17:1180056. [PMID: 37213933 PMCID: PMC10192585 DOI: 10.3389/fnhum.2023.1180056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 04/13/2023] [Indexed: 05/23/2023] Open
Abstract
Action observation (AO) is widely used as a post-stroke therapy to activate sensorimotor circuits through the mirror neuron system. However, passive observation is often considered to be less effective and less interactive than goal-directed movement observation, leading to the suggestion that observation of goal-directed actions may have stronger therapeutic potential, as goal-directed AO has been shown to activate mechanisms for monitoring action errors. Some studies have also suggested the use of AO as a form of Brain-computer interface (BCI) feedback. In this study, we investigated the potential for observation of virtual hand movements within a P300-based BCI as a feedback system to activate the mirror neuron system. We also explored the role of feedback anticipation and estimation mechanisms during movement observation. Twenty healthy subjects participated in the study. We analyzed event-related desynchronization and synchronization (ERD/S) of sensorimotor EEG rhythms and Error-related potentials (ErrPs) during observation of virtual hand finger flexion presented as feedback in the P300-BCI loop and compared the dynamics of ERD/S and ErrPs during observation of correct feedback and errors. We also analyzed these EEG markers during passive AO under two conditions: when subjects anticipated the action demonstration and when the action was unexpected. A pre-action mu-ERD was found both before passive AO and during action anticipation within the BCI loop. Furthermore, a significant increase in beta-ERS was found during AO within incorrect BCI feedback trials. We suggest that the BCI feedback may exaggerate the passive-AO effect, as it engages feedback anticipation and estimation mechanisms as well as movement error monitoring simultaneously. The results of this study provide insights into the potential of P300-BCI with AO-feedback as a tool for neurorehabilitation.
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Affiliation(s)
- Nikolay Syrov
- V. Zelman Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, Moscow, Russia
- Baltic Center for Neurotechnology and Artificial Intelligence, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
- *Correspondence: Nikolay Syrov,
| | - Lev Yakovlev
- V. Zelman Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, Moscow, Russia
- Baltic Center for Neurotechnology and Artificial Intelligence, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Andrei Miroshnikov
- Baltic Center for Neurotechnology and Artificial Intelligence, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Alexander Kaplan
- V. Zelman Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, Moscow, Russia
- Baltic Center for Neurotechnology and Artificial Intelligence, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
- Department of Human and Animal Physiology, Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia
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23
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Karimova ED, Gulyaeva AS, Katermin NS. The degree of mu rhythm suppression in women is associated with presence of children as well as empathy and anxiety level. Soc Neurosci 2022; 17:382-396. [PMID: 35950700 DOI: 10.1080/17470919.2022.2112753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
In experiments on observing and performing social gestures, the level of mu rhythm suppression is associated with the activity of the mirror neuron system (MNS), which is responsible for the perception and understanding of nonverbal signals in social communication. In turn, while MNS activity may be associated primarily with empathy, it is also associated with other psychological and demographic factors affecting the effectiveness of cortical neural networks.In this study, we verified the influence of empathy, state and trait anxiety levels, presence and number of children, age, and menstrual cycle phase on the mu-suppression level in 40 women. We used 32-channel EEG recorded during observation, and synchronous execution of various hand movements. The ICA infomax method was used for decomposing and selecting the left hemisphere component of the mu-rhythm.Mu-suppression was higher in women with one child, with higher levels of empathy, and with lower anxiety levels. It is possible that MNS activity is stronger in women during parental care.
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Affiliation(s)
- Ekaterina D Karimova
- Institute of Higher Nervous Activity and Neurophysiology of RAS (IHNA&NPh RAS), Moscow, Russia
| | - Alena S Gulyaeva
- Institute of Higher Nervous Activity and Neurophysiology of RAS (IHNA&NPh RAS), Moscow, Russia
| | - Nikita S Katermin
- Institute of Higher Nervous Activity and Neurophysiology of RAS (IHNA&NPh RAS), Moscow, Russia
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24
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Hervé E, Mento G, Desnous B, François C. Challenges and new perspectives of developmental cognitive EEG studies. Neuroimage 2022; 260:119508. [PMID: 35882267 DOI: 10.1016/j.neuroimage.2022.119508] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 07/07/2022] [Accepted: 07/22/2022] [Indexed: 10/16/2022] Open
Abstract
Despite shared procedures with adults, electroencephalography (EEG) in early development presents many specificities that need to be considered for good quality data collection. In this paper, we provide an overview of the most representative early cognitive developmental EEG studies focusing on the specificities of this neuroimaging technique in young participants, such as attrition and artifacts. We also summarize the most representative results in developmental EEG research obtained in the time and time-frequency domains and use more advanced signal processing methods. Finally, we briefly introduce three recent standardized pipelines that will help promote replicability and comparability across experiments and ages. While this paper does not claim to be exhaustive, it aims to give a sufficiently large overview of the challenges and solutions available to conduct robust cognitive developmental EEG studies.
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Affiliation(s)
- Estelle Hervé
- CNRS, LPL, Aix-Marseille University, 5 Avenue Pasteur, Aix-en-Provence 13100, France
| | - Giovanni Mento
- Department of General Psychology, University of Padova, Padova 35131, Italy; Padua Neuroscience Center (PNC), University of Padova, Padova 35131, Italy
| | - Béatrice Desnous
- APHM, Reference Center for Rare Epilepsies, Timone Children Hospital, Aix-Marseille University, Marseille 13005, France; Inserm, INS, Aix-Marseille University, Marseille 13005, France
| | - Clément François
- CNRS, LPL, Aix-Marseille University, 5 Avenue Pasteur, Aix-en-Provence 13100, France.
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25
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Dashtestani H, Miguel HO, Condy EE, Zeytinoglu S, Millerhagen JB, Debnath R, Smith E, Adali T, Fox NA, Gandjbakhche AH. Structured sparse multiset canonical correlation analysis of simultaneous fNIRS and EEG provides new insights into the human action-observation network. Sci Rep 2022; 12:6878. [PMID: 35477980 PMCID: PMC9046278 DOI: 10.1038/s41598-022-10942-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 04/13/2022] [Indexed: 11/25/2022] Open
Abstract
The action observation network (AON) is a network of brain regions involved in the execution and observation of a given action. The AON has been investigated in humans using mostly electroencephalogram (EEG) and functional magnetic resonance imaging (fMRI), but shared neural correlates of action observation and action execution are still unclear due to lack of ecologically valid neuroimaging measures. In this study, we used concurrent EEG and functional Near Infrared Spectroscopy (fNIRS) to examine the AON during a live-action observation and execution paradigm. We developed structured sparse multiset canonical correlation analysis (ssmCCA) to perform EEG-fNIRS data fusion. MCCA is a generalization of CCA to more than two sets of variables and is commonly used in medical multimodal data fusion. However, mCCA suffers from multi-collinearity, high dimensionality, unimodal feature selection, and loss of spatial information in interpreting the results. A limited number of participants (small sample size) is another problem in mCCA, which leads to overfitted models. Here, we adopted graph-guided (structured) fused least absolute shrinkage and selection operator (LASSO) penalty to mCCA to conduct feature selection, incorporating structural information amongst the variables (i.e., brain regions). Benefitting from concurrent recordings of brain hemodynamic and electrophysiological responses, the proposed ssmCCA finds linear transforms of each modality such that the correlation between their projections is maximized. Our analysis of 21 right-handed participants indicated that the left inferior parietal region was active during both action execution and action observation. Our findings provide new insights into the neural correlates of AON which are more fine-tuned than the results from each individual EEG or fNIRS analysis and validate the use of ssmCCA to fuse EEG and fNIRS datasets.
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Affiliation(s)
- Hadis Dashtestani
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - Helga O Miguel
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - Emma E Condy
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - Selin Zeytinoglu
- Department of Human Development and Quantitative Methodology, University of Maryland, College Park, MD, USA
| | - John B Millerhagen
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | | | - Elizabeth Smith
- Behavioral Medicine and Clinical Psychology Department, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Tulay Adali
- Department of Computer Science and Electrical Engineering, University of Maryland Baltimore County, Baltimore, MD, USA
| | - Nathan A Fox
- Department of Human Development and Quantitative Methodology, University of Maryland, College Park, MD, USA
| | - Amir H Gandjbakhche
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, USA.
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26
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Morales S, Bowers ME. Time-frequency analysis methods and their application in developmental EEG data. Dev Cogn Neurosci 2022; 54:101067. [PMID: 35065418 PMCID: PMC8784307 DOI: 10.1016/j.dcn.2022.101067] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 10/31/2021] [Accepted: 01/13/2022] [Indexed: 11/29/2022] Open
Abstract
EEG provides a rich measure of brain activity that can be characterized as neuronal oscillations. However, most developmental EEG work to date has focused on analyzing EEG data as Event-Related Potentials (ERPs) or power based on the Fourier transform. While these measures have been productive, they do not leverage all the information contained within the EEG signal. Namely, ERP analyses ignore non-phase-locked signals and Fourier-based power analyses ignore temporal information. Time-frequency analyses can better characterize the oscillations contained in the EEG data. By separating power and phase information across different frequencies, time-frequency measures provide a closer interpretation of the neurophysiological mechanisms, facilitate translation across neurophysiology disciplines, and capture processes not observed by ERP or Fourier-based analyses (e.g., connectivity). Despite their unique contributions, a literature review of this journal reveals that time-frequency analyses of EEG are yet to be embraced by the developmental cognitive neuroscience field. This manuscript presents a conceptual introduction to time-frequency analyses for developmental researchers. To facilitate the use of time-frequency analyses, we include a tutorial of accessible scripts, based on Cohen (2014), to calculate time-frequency power (signal strength), inter-trial phase synchrony (signal consistency), and two types of phase-based connectivity (inter-channel phase synchrony and weighted phase lag index).
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Affiliation(s)
- Santiago Morales
- Department of Human Development and Quantitative Methodology, University of Maryland - College Park, USA; Neuroscience and Cognitive Science Program, University of Maryland - College Park, USA; Department of Psychology, University of Southern California, USA.
| | - Maureen E Bowers
- Department of Human Development and Quantitative Methodology, University of Maryland - College Park, USA; Neuroscience and Cognitive Science Program, University of Maryland - College Park, USA
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27
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Chung H, Meyer M, Debnath R, Fox NA, Woodward A. Neural correlates of familiar and unfamiliar action in infancy. J Exp Child Psychol 2022; 220:105415. [PMID: 35339810 PMCID: PMC9086142 DOI: 10.1016/j.jecp.2022.105415] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 02/24/2022] [Accepted: 02/25/2022] [Indexed: 11/15/2022]
Abstract
Behavioral evidence shows that experience with an action shapes action perception. Neural mirroring has been suggested as a mechanism underlying this behavioral phenomenon. Suppression of electroencephalogram (EEG) power in the mu frequency band, an index of motor activation, typically reflects neural mirroring. However, contradictory findings exist regarding the association between mu suppression and motor familiarity in infant EEG studies. In this study, we investigated the neural underpinnings reflecting the role of familiarity in action perception. We measured neural processing of familiar (grasp) and novel (tool-use) actions in 9- and 12-month-old infants. Specifically, we measured infants' distinct motor/visual activity and explored functional connectivity associated with these processes. Mu suppression was stronger for grasping than for tool use, whereas significant mu and occipital alpha (indexing visual activity) suppression were evident for both actions. Interestingly, selective motor-visual functional connectivity was found during observation of familiar action, a pattern not observed for novel action. Thus, the neural correlates of perception of familiar actions may be best understood in terms of a functional neural network rather than isolated regional activity. Our findings provide novel insights on analytic approaches for identifying motor-specific neural activity while also considering neural networks involved in observing motorically familiar versus unfamiliar actions.
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Affiliation(s)
| | - Marlene Meyer
- University of Chicago, Chicago, IL 60637, USA; Donders Institute, Radboud University, 6525 GD Nijmegen, the Netherlands
| | - Ranjan Debnath
- Leibniz Institute for Neurobiology, 39118 Magdeburg, Germany
| | - Nathan A Fox
- University of Maryland, College Park, MD 20742, USA
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28
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Karthik S, Parise E, Liszkowski U. Mirroring Communicative Actions: Contextual Modulation of Mu Rhythm Desynchronization in Response to the 'Back-Of-Hand' Action in 9-Month-Old Infants. Dev Neuropsychol 2022; 47:158-174. [PMID: 35321593 DOI: 10.1080/87565641.2022.2055033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study measured mu rhythm desynchronization (MRD), while nine-month-old infants observed an agent extend her arm and hand, palm up ('back-of-hand action') either in social (object and recipient present), individual (object present, recipient absent), or social object-absent (recipient present, object absent) situations across two experiments. In addition, infants' MRD was measured as they reached for objects. Results revealed significant mu desynchronization in the right centro-parietal region selectively for the social group, indicating that infants processed the back-of-hand action as an object-directed request. Findings suggest to extend the action reconstruction account to object-directed communicative actions as well.
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Affiliation(s)
- Sriranjani Karthik
- Department of Developmental Psychology, University of Hamburg, Hamburg, Germany
| | - Eugenio Parise
- CIMeC - Center for Mind/Brain Sciences, University of Trento, Trento, Italy.,Department of Psychology, Lancaster University, Lancaster, UK
| | - Ulf Liszkowski
- Department of Developmental Psychology, University of Hamburg, Hamburg, Germany
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29
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Scanlon JEM, Jacobsen NSJ, Maack MC, Debener S. Stepping in time: Alpha-mu and beta oscillations during a walking synchronization task. Neuroimage 2022; 253:119099. [PMID: 35301131 DOI: 10.1016/j.neuroimage.2022.119099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 02/18/2022] [Accepted: 03/13/2022] [Indexed: 11/25/2022] Open
Abstract
Interpersonal behavioral synchrony is referred to as temporal coordination of action between two or more individuals. Humans tend to synchronize their movements during repetitive movement tasks such as walking. Mobile EEG technology now allows us to examine how this happens during gait. 18 participants equipped with foot accelerometers and mobile EEG walked with an experimenter in three conditions: With their view of the experimenter blocked, walking naturally, and trying to synchronize their steps with the experimenter. The experimenter walked following a headphone metronome to keep their steps consistent for all conditions. Step behavior and synchronization between the experimenter and participant were compared between conditions. Additionally, event-related spectral perturbations (ERSPs) were time-warped to the gait cycle in order to analyze alpha-mu (7.5-12.5 Hz) and beta (16-32 Hz) rhythms over the whole gait cycle. Step synchronization was significantly higher in the synchrony condition than in the natural condition. Likewise regarding ERSPs, right parietal channel (C4, C6, CP4, CP6) alpha-mu and central channel (C1, Cz, C2) beta power were suppressed from baseline in the walking synchrony condition compared to the natural walking condition. The natural and blocked conditions were not found to be significantly different in behavioral or spectral comparisons. Our results are compatible with the view that intentional synchronization employs systems associated with social interaction as well as the central motor system.
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Affiliation(s)
- J E M Scanlon
- Neuropsychology Lab, Department of Psychology, University of Oldenburg, Oldenburg, Germany.
| | - N S J Jacobsen
- Neuropsychology Lab, Department of Psychology, University of Oldenburg, Oldenburg, Germany
| | - M C Maack
- Neuropsychology Lab, Department of Psychology, University of Oldenburg, Oldenburg, Germany
| | - S Debener
- Neuropsychology Lab, Department of Psychology, University of Oldenburg, Oldenburg, Germany; Cluster of Excellence Hearing4all, University of Oldenburg, Oldenburg, Germany; Center for Neurosensory Science and Systems, University of Oldenburg, Oldenburg, Germany
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30
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Amoruso L, Pusil S, García AM, Ibañez A. Decoding motor expertise from fine-tuned oscillatory network organization. Hum Brain Mapp 2022; 43:2817-2832. [PMID: 35274804 PMCID: PMC9120567 DOI: 10.1002/hbm.25818] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/26/2022] [Accepted: 02/15/2022] [Indexed: 01/21/2023] Open
Abstract
Can motor expertise be robustly predicted by the organization of frequency-specific oscillatory brain networks? To answer this question, we recorded high-density electroencephalography (EEG) in expert Tango dancers and naïves while viewing and judging the correctness of Tango-specific movements and during resting. We calculated task-related and resting-state connectivity at different frequency-bands capturing task performance (delta [δ], 1.5-4 Hz), error monitoring (theta [θ], 4-8 Hz), and sensorimotor experience (mu [μ], 8-13 Hz), and derived topographical features using graph analysis. These features, together with canonical expertise measures (i.e., performance in action discrimination, time spent dancing Tango), were fed into a data-driven computational learning analysis to test whether behavioral and brain signatures robustly classified individuals depending on their expertise level. Unsurprisingly, behavioral measures showed optimal classification (100%) between dancers and naïves. When considering brain models, the task-based classification performed well (~73%), with maximal discrimination afforded by theta-band connectivity, a hallmark signature of error processing. Interestingly, mu connectivity during rest outperformed (100%) the task-based approach, matching the optimal classification of behavioral measures and thus emerging as a potential trait-like marker of sensorimotor network tuning by intense training. Overall, our findings underscore the power of fine-tuned oscillatory network signatures for capturing expertise-related differences and their potential value in the neuroprognosis of learning outcomes.
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Affiliation(s)
- Lucia Amoruso
- Basque Center on Cognition, Brain and Language (BCBL), San Sebastian, Spain.,IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
| | - Sandra Pusil
- Department of Experimental Psychology, Complutense University of Madrid, Madrid, Spain
| | - Adolfo Martín García
- National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina.,Cognitive Neuroscience Center (CNC), Universidad de San Andrés, Buenos Aires, Argentina.,National University of Cuyo (UNCuyo), Mendoza, Argentina.,Departamento de Lingüística y Literatura, Facultad de Humanidades, Universidad de Santiago de Chile, Santiago, Chile.,Global Brain Health Institute (GBHI), University of California San Francisco (UCSF), San Francisco, California, USA.,Trinity College Dublin (TCD), Dublin, Ireland
| | - Agustín Ibañez
- National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina.,Cognitive Neuroscience Center (CNC), Universidad de San Andrés, Buenos Aires, Argentina.,Global Brain Health Institute (GBHI), University of California San Francisco (UCSF), San Francisco, California, USA.,Trinity College Dublin (TCD), Dublin, Ireland.,Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibáñez, Santiago, Chile
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31
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Weber I, Oehrn CR. A Waveform-Independent Measure of Recurrent Neural Activity. Front Neuroinform 2022; 16:800116. [PMID: 35321152 PMCID: PMC8936506 DOI: 10.3389/fninf.2022.800116] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 02/08/2022] [Indexed: 11/23/2022] Open
Abstract
Rhythmic neural activity, so-called oscillations, plays a key role in neural information transmission, processing, and storage. Neural oscillations in distinct frequency bands are central to physiological brain function, and alterations thereof have been associated with several neurological and psychiatric disorders. The most common methods to analyze neural oscillations, e.g., short-time Fourier transform or wavelet analysis, assume that measured neural activity is composed of a series of symmetric prototypical waveforms, e.g., sinusoids. However, usually, the models generating the signal, including waveform shapes of experimentally measured neural activity are unknown. Decomposing asymmetric waveforms of nonlinear origin using these classic methods may result in spurious harmonics visible in the estimated frequency spectra. Here, we introduce a new method for capturing rhythmic brain activity based on recurrences of similar states in phase-space. This method allows for a time-resolved estimation of amplitude fluctuations of recurrent activity irrespective of or specific to waveform shapes. The algorithm is derived from the well-established field of recurrence analysis, which, in comparison to Fourier-based analysis, is still very uncommon in neuroscience. In this paper, we show its advantages and limitations in comparison to short-time Fourier transform and wavelet convolution using periodic signals of different waveform shapes. Furthermore, we demonstrate its application using experimental data, i.e., intracranial and noninvasive electrophysiological recordings from the human motor cortex of one epilepsy patient and one healthy adult, respectively.
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Affiliation(s)
- Immo Weber
- Department of Neurology, Philipps-University Marburg, Marburg, Germany
| | - Carina Renate Oehrn
- Department of Neurology, Philipps-University Marburg, Marburg, Germany
- Center for Mind, Brain and Behavior (CMBB), Philipps-University Marburg, Marburg, Germany
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32
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Murray L, Rayson H, Ferrari PF, Wass SV, Cooper PJ. Dialogic Book-Sharing as a Privileged Intersubjective Space. Front Psychol 2022; 13:786991. [PMID: 35310233 PMCID: PMC8927819 DOI: 10.3389/fpsyg.2022.786991] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 01/17/2022] [Indexed: 12/02/2022] Open
Abstract
Parental reading to young children is well-established as being positively associated with child cognitive development, particularly their language development. Research indicates that a particular, "intersubjective," form of using books with children, "Dialogic Book-sharing" (DBS), is especially beneficial to infants and pre-school aged children, particularly when using picture books. The work on DBS to date has paid little attention to the theoretical and empirical underpinnings of the approach. Here, we address the question of what processes taking place during DBS confer benefits to child development, and why these processes are beneficial. In a novel integration of evidence, ranging from non-human primate communication through iconic gestures and pointing, archaeological data on Pre-hominid and early human art, to experimental and naturalistic studies of infant attention, cognitive processing, and language, we argue that DBS entails core characteristics that make it a privileged intersubjective space for the promotion of child cognitive and language development. This analysis, together with the findings of DBS intervention studies, provides a powerful intellectual basis for the wide-scale promotion of DBS, especially in disadvantaged populations.
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Affiliation(s)
- Lynne Murray
- School of Psychology and Clinical Language Sciences, University of Reading, Reading, United Kingdom
| | - Holly Rayson
- Institute des Sciences Cognitives Marc Jeannerod (CNRS), Bron, France
| | - Pier-Francesco Ferrari
- Institute des Sciences Cognitives Marc Jeannerod (CNRS), Bron, France
- Dipartimento di Neuroscienza, Universitá di Parma, Parma, Italy
| | - Sam V. Wass
- School of Psychology, University of East London, London, United Kingdom
| | - Peter J. Cooper
- School of Psychology and Clinical Language Sciences, University of Reading, Reading, United Kingdom
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33
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Li B, Guo J, Zhao C, Luo X, Kong Y, Chen Y, Liu H, Sun L, Song Y. Lack of an association between anticipatory alpha oscillations and attentional selection in children with attention-deficit/hyperactivity disorder. Clin Neurophysiol 2022; 138:25-37. [DOI: 10.1016/j.clinph.2022.02.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 01/22/2022] [Accepted: 02/28/2022] [Indexed: 11/16/2022]
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34
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Decroix J, Rossetti Y, Quesque F. Les neurones miroirs, hommes à tout faire des neurosciences : analyse critique des limites méthodologiques et théoriques. ANNEE PSYCHOLOGIQUE 2022. [DOI: 10.3917/anpsy1.221.0085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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35
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Gu H, Shan X, He H, Zhao J, Li X. EEG Evidence of Altered Functional Connectivity and Microstate in Children Orphaned by HIV/AIDS. Front Psychiatry 2022; 13:898716. [PMID: 35845439 PMCID: PMC9277056 DOI: 10.3389/fpsyt.2022.898716] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 05/20/2022] [Indexed: 11/13/2022] Open
Abstract
Children orphaned by HIV/AIDS ("AIDS orphans") suffer numerous early-life adverse events which have a long-lasting effect on brain function. Although previous studies found altered electroencephalography (EEG) oscillation during resting state in children orphaned by HIV/AIDS, data are limited regarding the alterations in connectivity and microstate. The current study aimed to investigate the functional connectivity (FC) and microstate in children orphaned by HIV/AIDS with resting-state EEG data. Data were recorded from 63 children orphaned by HIV/AIDS and 65 non-orphan controls during a close-eyes resting state. The differences in phase-locking value (PLV) of global average FC and temporal dynamics of microstate were compared between groups. For functional connectivity, children orphaned by HIV/AIDS showed decreased connectivity in alpha, beta, theta, and delta band compared with non-orphan controls. For microstate, EEG results demonstrated that children orphaned by HIV/AIDS show increased duration and coverage of microstate C, decreased occurrence and coverage of microstate B, and decreased occurrence of microstate D than non-orphan controls. These findings suggest that the microstate and functional connectivity has altered in children orphaned by HIV/AIDS compared with non-orphan controls and provide additional evidence that early life stress (ELS) would alter the structure and function of the brain and increase the risk of psychiatric disorders.
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Affiliation(s)
- Huang Gu
- Institute of Behavior and Psychology, School of Psychology, Henan University, Kaifeng, China
| | - Xueke Shan
- Institute of Behavior and Psychology, School of Psychology, Henan University, Kaifeng, China
| | - Hui He
- Institute of Behavior and Psychology, School of Psychology, Henan University, Kaifeng, China
| | - Junfeng Zhao
- Institute of Behavior and Psychology, School of Psychology, Henan University, Kaifeng, China
| | - Xiaoming Li
- Department of Health Promotion, Education, and Behavior, University of South Carolina, Columbia, SC, United States
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Quadrelli E, Roberti E, Polver S, Bulf H, Turati C. Sensorimotor Activity and Network Connectivity to Dynamic and Static Emotional Faces in 7-Month-Old Infants. Brain Sci 2021; 11:brainsci11111396. [PMID: 34827394 PMCID: PMC8615901 DOI: 10.3390/brainsci11111396] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/20/2021] [Accepted: 10/22/2021] [Indexed: 11/16/2022] Open
Abstract
The present study investigated whether, as in adults, 7-month-old infants’ sensorimotor brain areas are recruited in response to the observation of emotional facial expressions. Activity of the sensorimotor cortex, as indexed by µ rhythm suppression, was recorded using electroencephalography (EEG) while infants observed neutral, angry, and happy facial expressions either in a static (N = 19) or dynamic (N = 19) condition. Graph theory analysis was used to investigate to which extent neural activity was functionally localized in specific cortical areas. Happy facial expressions elicited greater sensorimotor activation compared to angry faces in the dynamic experimental condition, while no difference was found between the three expressions in the static condition. Results also revealed that happy but not angry nor neutral expressions elicited a significant right-lateralized activation in the dynamic condition. Furthermore, dynamic emotional faces generated more efficient processing as they elicited higher global efficiency and lower networks’ diameter compared to static faces. Overall, current results suggest that, contrarily to neutral and angry faces, happy expressions elicit sensorimotor activity at 7 months and dynamic emotional faces are more efficiently processed by functional brain networks. Finally, current data provide evidence of the existence of a right-lateralized activity for the processing of happy facial expressions.
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Affiliation(s)
- Ermanno Quadrelli
- Department of Psychology, University of Milano-Bicocca, Edificio U6, Piazza dell’Ateneo Nuovo 1, 20126 Milano, Italy; (E.R.); (S.P.); (H.B.); (C.T.)
- NeuroMI, Milan Center for Neuroscience, 20126 Milano, Italy
- Correspondence: ; Tel.: +39-026-448-3775
| | - Elisa Roberti
- Department of Psychology, University of Milano-Bicocca, Edificio U6, Piazza dell’Ateneo Nuovo 1, 20126 Milano, Italy; (E.R.); (S.P.); (H.B.); (C.T.)
- NeuroMI, Milan Center for Neuroscience, 20126 Milano, Italy
| | - Silvia Polver
- Department of Psychology, University of Milano-Bicocca, Edificio U6, Piazza dell’Ateneo Nuovo 1, 20126 Milano, Italy; (E.R.); (S.P.); (H.B.); (C.T.)
| | - Hermann Bulf
- Department of Psychology, University of Milano-Bicocca, Edificio U6, Piazza dell’Ateneo Nuovo 1, 20126 Milano, Italy; (E.R.); (S.P.); (H.B.); (C.T.)
- NeuroMI, Milan Center for Neuroscience, 20126 Milano, Italy
| | - Chiara Turati
- Department of Psychology, University of Milano-Bicocca, Edificio U6, Piazza dell’Ateneo Nuovo 1, 20126 Milano, Italy; (E.R.); (S.P.); (H.B.); (C.T.)
- NeuroMI, Milan Center for Neuroscience, 20126 Milano, Italy
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Zarka D, Cebolla AM, Cheron G. [Mirror neurons, neural substrate of action understanding?]. Encephale 2021; 48:83-91. [PMID: 34625217 DOI: 10.1016/j.encep.2021.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 06/12/2021] [Indexed: 10/20/2022]
Abstract
In 1992, the Laboratory of Human Physiology at the University of Parma (Italy) publish a study describing "mirror" neurons in the macaque that activate both when the monkey performs an action and when it observes an experimenter performing the same action. The research team behind this discovery postulates that the mirror neurons system is the neural basis of our ability to understand the actions of others, through the motor mapping of the observed action on the observer's motor repertory (direct-matching hypothesis). Nevertheless, this conception met serious criticism. These critics attempt to relativize their function by placing them within a network of neurocognitive and sensory interdependencies. In short, the essential characteristic of these neurons is to combine the processing of sensory information, especially visual, with that of motor information. Their elementary function would be to provide a motor simulation of the observed action, based on visual information from it. They can contribute, with other non-mirror areas, to the identification/prediction of the action goal and to the interpretation of the intention of the actor performing it. Studying the connectivity and high frequency synchronizations of the different brain areas involved in action observation would likely provide important information about the dynamic contribution of mirror neurons to "action understanding". The aim of this review is to provide an up-to-date analysis of the scientific evidence related to mirror neurons and their elementary functions, as well as to shed light on the contribution of these neurons to our ability to interpret and understand others' actions.
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Affiliation(s)
- D Zarka
- Faculté des Sciences de la Motricité, laboratoire de neurophysiologie et de biomécanique du mouvement, université Libre de Bruxelles, CP640, 808, route de Lennik, 1070 Brussels, Belgique; Unité de Recherche en Sciences de l'Ostéopathie, faculté des Sciences de la Motricité, université Libre de Bruxelles, CP640, 808, route de Lennik, 1070 Brussels, Belgique.
| | - A M Cebolla
- Faculté des Sciences de la Motricité, laboratoire de neurophysiologie et de biomécanique du mouvement, université Libre de Bruxelles, CP640, 808, route de Lennik, 1070 Brussels, Belgique
| | - G Cheron
- Faculté des Sciences de la Motricité, laboratoire de neurophysiologie et de biomécanique du mouvement, université Libre de Bruxelles, CP640, 808, route de Lennik, 1070 Brussels, Belgique; Laboratoire d'électrophysiologie, université de Mons, 7000 Mons, Belgique
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38
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The Effect of Baseline on Toddler Event-Related Mu-Rhythm Modulation. Brain Sci 2021; 11:brainsci11091159. [PMID: 34573178 PMCID: PMC8472825 DOI: 10.3390/brainsci11091159] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/26/2021] [Accepted: 08/27/2021] [Indexed: 11/17/2022] Open
Abstract
Event-related mu-rhythm activity has become a common tool for the investigation of different socio-cognitive processes in pediatric populations. The estimation of the mu-rhythm desynchronization/synchronization (mu-ERD/ERS) in a specific task is usually computed in relation to a baseline condition. In the present study, we investigated the effect that different types of baseline might have on toddler mu-ERD/ERS related to an action observation (AO) and action execution (AE) task. Specifically, we compared mu-ERD/ERS values computed using as a baseline: (1) the observation of a static image (BL1) and (2) a period of stillness (BL2). Our results showed that the majority of the subjects suppressed the mu-rhythm in response to the task and presented a greater mu-ERD for one of the two baselines. In some cases, one of the two baselines was not even able to produce a significant mu-ERD, and the preferred baseline varied among subjects even if most of them were more sensitive to the BL1, thus suggesting that this could be a good baseline to elicit mu-rhythm modulations in toddlers. These results recommended some considerations for the design and analysis of mu-rhythm studies involving pediatric subjects: in particular, the importance of verifying the mu-rhythm activity during baseline, the relevance of single-subject analysis, the possibility of including more than one baseline condition, and caution in the choice of the baseline and in the interpretation of the results of studies investigating mu-rhythm activity in pediatric populations.
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Meyer M, Chung H, Debnath R, Fox N, Woodward AL. Social context shapes neural processing of others' actions in 9-month-old infants. J Exp Child Psychol 2021; 213:105260. [PMID: 34390926 DOI: 10.1016/j.jecp.2021.105260] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 06/04/2021] [Accepted: 07/09/2021] [Indexed: 02/02/2023]
Abstract
From infancy, neural processes for perceiving others' actions and producing one's own actions overlap (neural mirroring). Adults and children show enhanced mirroring in social interactions. Yet, whether social context affects mirroring in infancy, a time when processing others' actions is crucial for action learning, remains unclear. We examined whether turn-taking, an early form of social interaction, enhanced 9-month-olds' neural mirroring. We recorded electroencephalography while 9-month-olds were grasping (execution) and observing live grasps (observation). In this design, half of the infants observed and acted in alternation (turn-taking condition), whereas the other half observed several times in a row before acting (blocked condition). Replicating previous findings, infants showed significant 6- to 9-Hz mu suppression (indicating motor activation) during execution and observation (n = 24). In addition, a condition (turn-taking or blocked) by time (action start or end) interaction indicated that infants engaged in turn-taking (n = 9), but not in the blocked context (n = 15), showed more mirroring when observing the action start compared with the action end. Exploratory analyses further suggest that (a) there is higher visual-motor functional connectivity in turn-taking toward the action's end, (b) mirroring relates to later visual-motor connectivity, and (c) visual attention as indexed by occipital alpha is enhanced in turn-taking compared with the blocked context. Together, this suggests that the neural processing of others' actions is modulated by the social context in infancy and that turn-taking may be particularly effective in engaging infants' action perception system.
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Affiliation(s)
- Marlene Meyer
- Department of Psychology, University of Chicago, Chicago, IL 60637, USA; Donders Institute, Radboud University, 6525 GD Nijmegen, the Netherlands.
| | - Haerin Chung
- Department of Psychology, University of Chicago, Chicago, IL 60637, USA
| | - Ranjan Debnath
- Leibniz Institute for Neurobiology, 39118 Magdeburg, Germany
| | - Nathan Fox
- Child Development Lab, Department of Human Development and Quantitative Methodology, University of Maryland, College Park, MD 20742, USA
| | - Amanda L Woodward
- Department of Psychology, University of Chicago, Chicago, IL 60637, USA
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Miguel HO, Condy EE, Nguyen T, Zeytinoglu S, Blick E, Bress K, Khaksari K, Dashtestani H, Millerhagen J, Shahmohammadi S, Fox NA, Gandjbakhche A. Cerebral hemodynamic response during a live action-observation and action-execution task: A fNIRS study. PLoS One 2021; 16:e0253788. [PMID: 34388157 PMCID: PMC8362964 DOI: 10.1371/journal.pone.0253788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 06/14/2021] [Indexed: 11/25/2022] Open
Abstract
Although many studies have examined the location of the action observation network (AON) in human adults, the shared neural correlates of action-observation and action-execution are still unclear partially due to lack of ecologically valid neuroimaging measures. In this study, we aim to demonstrate the feasibility of using functional near infrared spectroscopy (fNIRS) to measure the neural correlates of action-observation and action execution regions during a live task. Thirty adults reached for objects or observed an experimenter reaching for objects while their cerebral hemodynamic responses including oxy-hemoglobin (HbO) and deoxy-hemoglobin (HbR) were recorded in the sensorimotor and parietal regions. Our results indicated that the parietal regions, including bilateral superior parietal lobule (SPL), bilateral inferior parietal lobule (IPL), right supra-marginal region (SMG) and right angular gyrus (AG) share neural activity during action-observation and action-execution. Our findings confirm the applicability of fNIRS for the study of the AON and lay the foundation for future work with developmental and clinical populations.
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Affiliation(s)
- Helga O. Miguel
- National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Emma E. Condy
- National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Thien Nguyen
- National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Selin Zeytinoglu
- Department of Human Development and Quantitative Methodology, University of Maryland, College Park, Maryland, United States of America
| | - Emily Blick
- National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Kimberly Bress
- National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Kosar Khaksari
- National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Hadis Dashtestani
- National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America
| | - John Millerhagen
- National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Sheida Shahmohammadi
- National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Nathan A. Fox
- Department of Human Development and Quantitative Methodology, University of Maryland, College Park, Maryland, United States of America
| | - Amir Gandjbakhche
- National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America
- * E-mail:
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41
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Festante F, Rayson H, Paukner A, Kaburu SSK, Toschi G, Fox NA, Ferrari PF. Oxytocin promotes prosocial behavior and related neural responses in infant macaques at-risk for compromised social development. Dev Cogn Neurosci 2021; 48:100950. [PMID: 33831822 PMCID: PMC8042434 DOI: 10.1016/j.dcn.2021.100950] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 02/12/2021] [Accepted: 03/30/2021] [Indexed: 01/30/2023] Open
Abstract
Although positive effects of oxytocin (OT) on social functioning are well-demonstrated, little is known about the mechanisms through which OT may drive early social development, or its therapeutic efficacy in infancy. To address these critical issues, we investigated the effects of exogenous OT on neural (EEG) and behavioral responses during observation of live facial gestures in infant macaques with limited social exposure (i.e. nursery-reared). Three key findings were revealed. First, OT increased alpha suppression over posterior scalp regions during observation of facial gestures but not non-biological movement, suggesting that OT targets self-other matching and attentional cortical networks involved in social perception from very early infancy. Second, OT increased infant production of matching facial gestures and attention towards the most socially-relevant facial stimuli, both behaviors typically silenced by early social deprivation. Third, infants with higher cortisol levels appeared to benefit the most from OT, displaying greater improvements in prosocial behaviors after OT administration. Altogether, these findings suggest that OT promotes prosocial behaviors and associated neural responses likely impacted by early social adversity, and demonstrate the potential of OT administration to ameliorate social difficulties in the context of neurodevelopmental and early-emerging psychiatric disorders, at a developmental stage when brain plasticity is greatest.
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Affiliation(s)
- Fabrizia Festante
- Department of Developmental Neuroscience, IRCCS Fondazione Stella Maris, 56128, Pisa, Italy; Department of Clinical and Experimental Medicine, University of Pisa, 56126, Pisa, Italy
| | - Holly Rayson
- Institut des Sciences Cognitives Marc Jeannerod, CNRS/Université Claude Bernard Lyon, Bron, Cedex, 69675, France
| | - Annika Paukner
- Psychology Department, Nottingham Trent University, Nottingham, NG1 4FQ, UK
| | - Stefano S K Kaburu
- Department of Biomedical Science & Physiology, University of Wolverhampton, Wolverhampton, WV1 1LY, UK
| | - Giulia Toschi
- Department of Medicine and Surgery, University of Parma, 43125, Parma, Italy
| | - Nathan A Fox
- Department of Human Development and Quantitative Methodology, University of Maryland, College Park, MD, 20740, USA
| | - Pier Francesco Ferrari
- Institut des Sciences Cognitives Marc Jeannerod, CNRS/Université Claude Bernard Lyon, Bron, Cedex, 69675, France; Department of Medicine and Surgery, University of Parma, 43125, Parma, Italy.
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42
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Condy EE, Miguel HO, Millerhagen J, Harrison D, Khaksari K, Fox N, Gandjbakhche A. Characterizing the Action-Observation Network Through Functional Near-Infrared Spectroscopy: A Review. Front Hum Neurosci 2021; 15:627983. [PMID: 33679349 PMCID: PMC7930074 DOI: 10.3389/fnhum.2021.627983] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/18/2021] [Indexed: 12/19/2022] Open
Abstract
Functional near-infrared spectroscopy (fNIRS) is a neuroimaging technique that has undergone tremendous growth over the last decade due to methodological advantages over other measures of brain activation. The action-observation network (AON), a system of brain structures proposed to have “mirroring” abilities (e.g., active when an individual completes an action or when they observe another complete that action), has been studied in humans through neural measures such as fMRI and electroencephalogram (EEG); however, limitations of these methods are problematic for AON paradigms. For this reason, fNIRS is proposed as a solution to investigating the AON in humans. The present review article briefly summarizes previous neural findings in the AON and examines the state of AON research using fNIRS in adults. A total of 14 fNIRS articles are discussed, paying particular attention to methodological choices and considerations while summarizing the general findings to aid in developing better protocols to study the AON through fNIRS. Additionally, future directions of this work are discussed, specifically in relation to researching AON development and potential multimodal imaging applications.
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Affiliation(s)
- Emma E Condy
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, United States
| | - Helga O Miguel
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, United States
| | - John Millerhagen
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, United States
| | - Doug Harrison
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, United States
| | - Kosar Khaksari
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, United States
| | - Nathan Fox
- Department of Human Development and Quantitative Methodology, University of Maryland, College Park, MD, United States
| | - Amir Gandjbakhche
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, United States
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Shi C, Liu S, Chen X, Tao L. Cortical oscillations can differentiate the gradient of the simulated central visual field defect. Int J Psychophysiol 2021; 162:40-48. [PMID: 33548346 DOI: 10.1016/j.ijpsycho.2021.01.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/12/2020] [Accepted: 01/31/2021] [Indexed: 10/22/2022]
Abstract
PURPOSE Covert spatial attention directs the attentional spotlight to a particular part of the visual field and modulates the retinotopic organized oscillatory brain activity. This study aimed to investigate the electrophysiological characteristics of oscillatory brain activity when simulating different defect degrees of the central visual field. METHODS The power of theta and alpha activity was extracted using time-frequency analysis in forty healthy participants enrolled in the three-stimulus oddball paradigm. Standard stimuli were black-and-white checkerboards. Target stimuli simulated different degrees of the central visual field defect by superimposing black discs with different radii (5, 10, 20, and 30 degrees of visual angle) on the center of the peripheral checkerboard stimulation, and distractor stimuli presented in the reverse form with a constant radius. RESULTS By simulating central visual field defects, the increased theta power and decreased alpha power was observed when detecting target stimuli. Besides, the magnitude of increased theta power and decreased alpha power peaked at the 10-degree defect conditions, and gradually decayed to the 5 and 30-degree defect conditions, which separately indicated two key points in the visual field through the spatial attentional modulations. CONCLUSION Using cortical oscillatory dynamics in the time-frequency platform, the defect category of the central visual field could be quantified by alpha and theta oscillations in power differences. These findings suggest that cortical oscillations are sensitive markers for the discrimination of gradient effects of the central visual field defects and further demonstrate the phenomenon of functional dissociation in the visual field in covert spatial attention status.
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Affiliation(s)
- Chaoqun Shi
- Key Laboratory of Evidence Science (China University of Political Science and Law), Ministry of Education, 100192 Beijing, China; Department of Forensic Science, Soochow University, 215021 Suzhou, China
| | - Sinan Liu
- Department of Forensic Science, Soochow University, 215021 Suzhou, China
| | - Xiping Chen
- Key Laboratory of Evidence Science (China University of Political Science and Law), Ministry of Education, 100192 Beijing, China; Department of Forensic Science, Soochow University, 215021 Suzhou, China.
| | - Luyang Tao
- Department of Forensic Science, Soochow University, 215021 Suzhou, China.
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44
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Andreu-Sánchez C, Martín-Pascual MÁ, Gruart A, Delgado-García JM. The Effect of Media Professionalization on Cognitive Neurodynamics During Audiovisual Cuts. Front Syst Neurosci 2021; 15:598383. [PMID: 33584210 PMCID: PMC7876408 DOI: 10.3389/fnsys.2021.598383] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 01/05/2021] [Indexed: 11/23/2022] Open
Abstract
Experts apply their experience to the proper development of their routine activities. Their acquired expertise or professionalization is expected to help in the development of those recurring tasks. Media professionals spend their daily work watching narrative contents on screens, so learning how they manage visual perception of those contents could be of interest in an increasingly audiovisual society. Media works require not only the understanding of the storytelling, but also the decoding of the formal rules and presentations. We recorded electroencephalographic (EEG) signals from 36 participants (18 media professionals and 18 non-media professionals) while they were watching audiovisual contents, and compared their eyeblink rate and their brain activity and connectivity. We found that media professionals decreased their blink rate after the cuts, suggesting that they can better manage the loss of visual information that blinks entail by sparing them when new visual information is being presented. Cuts triggered similar activation of basic brain processing in the visual cortex of the two groups, but different processing in medial and frontal cortical areas, where media professionals showed a lower activity. Effective brain connectivity occurred in a more organized way in media professionals–possibly due to a better communication between cortical areas that are coordinated for decoding new visual content after cuts.
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Affiliation(s)
- Celia Andreu-Sánchez
- Department of Audiovisual Communication and Advertising, Neuro-Com Research Group, Universitat Autònoma de Barcelona, Barcelona, Spain.,Serra Húnter Fellow
| | - Miguel Ángel Martín-Pascual
- Department of Audiovisual Communication and Advertising, Neuro-Com Research Group, Universitat Autònoma de Barcelona, Barcelona, Spain.,Technological Innovation, Instituto Radio Televisiòn Española (RTVE), Corporaciòn RTVE, Barcelona, Spain
| | - Agnès Gruart
- Division of Neuroscience, University Pablo de Olavide, Sevilla, Spain
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45
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Kubicek E, Quandt LC. A Positive Relationship Between Sign Language Comprehension and Mental Rotation Abilities. JOURNAL OF DEAF STUDIES AND DEAF EDUCATION 2021; 26:1-12. [PMID: 32978623 DOI: 10.1093/deafed/enaa030] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/29/2020] [Accepted: 08/05/2020] [Indexed: 06/11/2023]
Abstract
Past work investigating spatial cognition suggests better mental rotation abilities for those who are fluent in a signed language. However, no prior work has assessed whether fluency is needed to achieve this performance benefit or what it may look like on the neurobiological level. We conducted an electroencephalography experiment and assessed accuracy on a classic mental rotation task given to deaf fluent signers, hearing fluent signers, hearing non-fluent signers, and hearing non-signers. Two of the main findings of the study are as follows: (1) Sign language comprehension and mental rotation abilities are positively correlated and (2) Behavioral performance differences between signers and non-signers are not clearly reflected in brain activity typically associated with mental rotation. In addition, we propose that the robust impact sign language appears to have on mental rotation abilities strongly suggests that "sign language use" should be added to future measures of spatial experiences.
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Affiliation(s)
- Emily Kubicek
- Educational Neuroscience Program, Gallaudet University
| | - Lorna C Quandt
- Educational Neuroscience Program, Gallaudet University
- Department of Psychology, Gallaudet University
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46
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Hwang HG, Debnath R, Meyer M, Salo VC, Fox NA, Woodward A. Neighborhood racial demographics predict infants' neural responses to people of different races. Dev Sci 2020; 24:e13070. [PMID: 33277794 DOI: 10.1111/desc.13070] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 11/28/2020] [Accepted: 11/29/2020] [Indexed: 11/27/2022]
Abstract
Early in life, greater exposure to diverse people can change the tendency to prefer one's own social group. For instance, infants from racially diverse environments show less preference for their own-race (ingroup) over other-race (outgroup) faces than infants from racially homogeneous environments. Yet how social environment changes ingroup versus outgroup demarcation in infancy remains unclear. A commonly held assumption is that early emerging ingroup preference is based on an affective process: feeling more comfortable with familiar ingroup than unfamiliar outgroup members. However, other processes may also underlie ingroup preference: Infants may attend more to ingroup than outgroup members and/or mirror the actions of ingroup over outgroup individuals. By aggregating 7- to 12-month-old infants' electroencephalography (EEG) activity across three studies, we disambiguate these different processes in the EEG oscillations of preverbal infants according to social environment. White infants from more racially diverse neighborhoods exhibited greater frontal theta oscillation (an index of top-down attention) and more mu rhythm desynchronization (an index of motor system activation and potentially neural mirroring) to racial outgroup individuals than White infants from less racially diverse neighborhoods. Neighborhood racial demographics did not relate to White infants' frontal alpha asymmetry (a measure of approach-withdrawal motivation) toward racial outgroup individuals. Racial minority infants showed no effects of neighborhood racial demographics in their neural responses to racial outgroup individuals. These results indicate that neural mechanisms that may underlie social bias and prejudices are related to neighborhood racial demographics in the first year of life.
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Affiliation(s)
- Hyesung G Hwang
- Department of Psychology, University of Chicago, Chicago, IL, USA
| | - Ranjan Debnath
- Department of Human Development and Quantitative Methodology, University of Maryland. College Park, MD, USA.,Leibniz Institute for Neurobiology, Magdeburg, Germany
| | - Marlene Meyer
- Department of Psychology, University of Chicago, Chicago, IL, USA.,Donders Institute for Brain, Cognition, and Behavior, Radboud University, Nijmegen, Netherlands
| | - Virginia C Salo
- Department of Human Development and Quantitative Methodology, University of Maryland. College Park, MD, USA.,Department of Psychology and Human Development, Vanderbilt University. Nashville, TN, USA
| | - Nathan A Fox
- Department of Human Development and Quantitative Methodology, University of Maryland. College Park, MD, USA
| | - Amanda Woodward
- Department of Psychology, University of Chicago, Chicago, IL, USA
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Enhanced mirroring upon mutual gaze: multimodal evidence from TMS-assessed corticospinal excitability and the EEG mu rhythm. Sci Rep 2020; 10:20449. [PMID: 33235329 PMCID: PMC7687883 DOI: 10.1038/s41598-020-77508-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 11/11/2020] [Indexed: 01/10/2023] Open
Abstract
Previous research has demonstrated that eye contact between actor and observer specifically enhances the 'mirroring' of others' actions, as measured by transcranial magnetic stimulation (TMS)-induced motor evoked potentials (MEPs). However, it remains unknown whether other markers of mirror system activation, such as suppression of the EEG mu rhythm (8-13 Hz) over the sensorimotor strip, are also susceptible to perceived eye contact. Here, both TMS-induced MEPs and EEG mu suppression indices were assessed (in separate sessions) while 32 participants (mean age: 24y; 8m) observed a simple hand movement combined with direct or averted gaze from the actor. Both measures were significantly modulated by perceived eye gaze during action observation; showing an increase in MEP amplitude and an attenuation of the mu rhythm during direct vs. averted gaze. Importantly, while absolute MEP and mu suppression scores were not related, a significant association was identified between gaze-related changes in MEPs and mu suppression, indicating that both measures are similarly affected by the modulatory impact of gaze cues. Our results suggest that although the neural substrates underlying TMS-induced MEPs and the EEG mu rhythm may differ, both are sensitive to the social relevance of the observed actions, which might reflect a similar neural gating mechanism.
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48
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Iwama S, Tsuchimoto S, Hayashi M, Mizuguchi N, Ushiba J. Scalp electroencephalograms over ipsilateral sensorimotor cortex reflect contraction patterns of unilateral finger muscles. Neuroimage 2020; 222:117249. [PMID: 32798684 DOI: 10.1016/j.neuroimage.2020.117249] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 08/02/2020] [Accepted: 08/06/2020] [Indexed: 12/17/2022] Open
Abstract
A variety of neural substrates are implicated in the initiation, coordination, and stabilization of voluntary movements underpinned by adaptive contraction and relaxation of agonist and antagonist muscles. To achieve such flexible and purposeful control of the human body, brain systems exhibit extensive modulation during the transition from resting state to motor execution and to maintain proper joint impedance. However, the neural structures contributing to such sensorimotor control under unconstrained and naturalistic conditions are not fully characterized. To elucidate which brain regions are implicated in generating and coordinating voluntary movements, we employed a physiologically inspired, two-stage method to decode relaxation and three patterns of contraction in unilateral finger muscles (i.e., extension, flexion, and co-contraction) from high-density scalp electroencephalograms (EEG). The decoder consisted of two parts employed in series. The first discriminated between relaxation and contraction. If the EEG data were discriminated as contraction, the second stage then discriminated among the three contraction patterns. Despite the difficulty in dissociating detailed contraction patterns of muscles within a limb from scalp EEG signals, the decoder performance was higher than chance-level by 2-fold in the four-class classification. Moreover, weighted features in the trained decoders revealed EEG features differentially contributing to decoding performance. During the first stage, consistent with previous reports, weighted features were localized around sensorimotor cortex (SM1) contralateral to the activated fingers, while those during the second stage were localized around ipsilateral SM1. The loci of these weighted features suggested that the coordination of unilateral finger muscles induced different signaling patterns in ipsilateral SM1 contributing to motor control. Weighted EEG features enabled a deeper understanding of human sensorimotor processing as well as of a more naturalistic control of brain-computer interfaces.
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Affiliation(s)
- Seitaro Iwama
- School of Fundamental Science and Technology, Graduate School of Keio University, Kanagawa, Japan
| | - Shohei Tsuchimoto
- School of Fundamental Science and Technology, Graduate School of Keio University, Kanagawa, Japan; Center of Assistive Robotics and Rehabilitation for Longevity and Good Health, National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Masaaki Hayashi
- School of Fundamental Science and Technology, Graduate School of Keio University, Kanagawa, Japan
| | - Nobuaki Mizuguchi
- Center of Assistive Robotics and Rehabilitation for Longevity and Good Health, National Center for Geriatrics and Gerontology, Aichi, Japan; Department of Biosciences and informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kouhoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Junichi Ushiba
- Department of Biosciences and informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kouhoku-ku, Yokohama, Kanagawa 223-8522, Japan.
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Chen S, Li Y, Shu X, Wang C, Wang H, Ding L, Jia J. Electroencephalography Mu Rhythm Changes and Decreased Spasticity After Repetitive Peripheral Magnetic Stimulation in Patients Following Stroke. Front Neurol 2020; 11:546599. [PMID: 33133002 PMCID: PMC7550716 DOI: 10.3389/fneur.2020.546599] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 08/17/2020] [Indexed: 11/13/2022] Open
Abstract
Background: Spasticity is common among patients with stroke. Repetitive peripheral magnetic stimulation (rPMS) is a painless and noninvasive therapy that is a promising approach to reducing spasticity. However, the central mechanism of this therapy remains unclear. Changes in cortical activity and decreased spasticity after rPMS intervention require further exploration. The aim of this study was to explore the electroencephalography (EEG) mu rhythm change and decrease in spasticity after rPMS intervention in patients with stroke. Materials and methods: A total of 32 patients with spasticity following stroke were recruited in this study and assigned to the rPMS group (n = 16) or sham group (n = 16). The modified Ashworth scale, modified Tardieu scale, and Fugl-Meyer assessment of the upper extremity were used to assess changes in upper limb spasticity and motor function. Before and after the rPMS intervention, EEG evaluation was performed to detect EEG mu rhythm changes in the brain. Results: After one session of rPMS intervention, spasticity was reduced in elbow flexors (p < 0.05) and wrist flexors (p < 0.05). Upper limb motor function measured according to the Fugl-Meyer assessment was improved (p < 0.05). In the rPMS group, the power of event-related desynchronization decreased in the mu rhythm band (8-12 Hz) in the contralesional hemisphere (p < 0.05). Conclusions: The results indicate that rPMS intervention reduced spasticity. Cortical activity changes may suggest this favorable change in terms of its neurological effects on the central nervous system.
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Affiliation(s)
- Shugeng Chen
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Yang Li
- Department of Rehabilitation Medicine, Shanghai Jing'an District Central Hospital, Shanghai, China
| | - Xiaokang Shu
- School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai, China
| | - Chuankai Wang
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Hewei Wang
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Li Ding
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Jie Jia
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai, China.,National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China
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Rauchbauer B, Grosbras MH. Developmental trajectory of interpersonal motor alignment: Positive social effects and link to social cognition. Neurosci Biobehav Rev 2020; 118:411-425. [PMID: 32783968 PMCID: PMC7415214 DOI: 10.1016/j.neubiorev.2020.07.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 06/19/2020] [Accepted: 07/27/2020] [Indexed: 01/08/2023]
Abstract
Interpersonal motor alignment (IMA) has positive effects on healthy social life. IMA - mimicry, synchrony, automatic imitation - is studied throughout development. It relies on motor resonance brain mechanisms identified throughout development. It is modulated by contextual and personal factors. IMA is underinvestigated in adolescence, yet it may aid to enhance resilience.
Interpersonal motor alignment is a ubiquitous behavior in daily social life. It is a building block for higher social cognition, including empathy and mentalizing and promotes positive social effects. It can be observed as mimicry, synchrony and automatic imitation, to name a few. These phenomena rely on motor resonance processes, i.e., a direct link between the perception of an action and its execution. While a considerable literature debates its underlying mechanisms and measurement methods, the question of how motor alignment comes about and changes in ontogeny all the way until adulthood, is rarely discussed specifically. In this review we will focus on the link between interpersonal motor alignment, positive social effects and social cognition in infants, children, and adolescents, demonstrating that this link is present early on in development. Yet, in reviewing the existing literature pertaining to social psychology and developmental social cognitive neuroscience, we identify a knowledge gap regarding the healthy developmental changes in interpersonal motor alignment especially in adolescence.
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Affiliation(s)
- Birgit Rauchbauer
- Laboratoire de Neuroscience Cognitives, UMR 7291, Aix-Marseille University, CNRS, 3 Place Victor-Hugo, 13331 Marseille Cedex 3, France; Laboratoire Parole et Langage, Aix-Marseille University, CNRS, 5 Avenue Pasteur, 13100 Aix-en-Provence, France; Institut de Neuroscience de la Timone, Aix-Marseille University, CNRS, Faculté de Médecine, 27 Boulevard Jean Moulin, 13005 Marseille, France.
| | - Marie-Hélène Grosbras
- Laboratoire de Neuroscience Cognitives, UMR 7291, Aix-Marseille University, CNRS, 3 Place Victor-Hugo, 13331 Marseille Cedex 3, France
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