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Dos Anjos T, Guillot A, Daligault S, Chamoun DM, De Sousa T, Di Rienzo F. Low-frequency sounds combined with motor imagery elicits a transient disruption of force performance: A path to neuromotor reprogramming? Neuroimage 2024; 297:120746. [PMID: 39033789 DOI: 10.1016/j.neuroimage.2024.120746] [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: 02/08/2024] [Revised: 06/19/2024] [Accepted: 07/18/2024] [Indexed: 07/23/2024] Open
Abstract
The effectiveness of motor imagery (MI) training on sports performance is now well-documented. Recently, it has been proposed that a single session of MI combined with low frequency sound (LFS) might enhance muscle activation. However, the neural mechanisms underlying this effect remain unknown. We set up a test-retest intervention over the course of 2 consecutive days to evaluate the effect of (i) MI training (MI, n = 20), (ii) MI combined with LFS (MI + LFS, n = 20), and (iii) a control condition (CTRL, n = 20) on force torque produced across repeated maximal voluntary contractions of the quadriceps before (Pretest), after (Posttest) and at +12 h (Retention) post-intervention. We collected the integrated electromyograms of the quadriceps muscles, as well as brain electrical potentials during each experimental intervention. In the CTRL group, total force torque decreased from Pretest to Retention and from Posttest to Retention. By contrast, there was an increase between Posttest and Retention in both MI + LFS and MI groups (both ηP2 = 0.03, p < 0.05). Regression analyses further revealed a negative relationship between force performance and EEG activity in the MI + LFS group only. The data support a transient interference of LFS on cortical activity underlying the priming effects of MI practice on force performance. Findings are discussed in relation to the potential for motor reprogramming through MI combined with LFS.
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Affiliation(s)
- Typhanie Dos Anjos
- Universite Lyon 1, UCB-Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité-UR 7424, F-69622, Villeurbanne Cedex, France; Allyane®, 84 quai Joseph Gillet, 69004 Lyon, France
| | - Aymeric Guillot
- Universite Lyon 1, UCB-Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité-UR 7424, F-69622, Villeurbanne Cedex, France
| | - Sebastien Daligault
- Centre de Recherche Multimodal et Pluridisciplinaire en Imagerie du Vivant (CERMEP), Department of Magnetoencephalography, F-69500 Bron, France
| | - Donna-Maria Chamoun
- Universite Lyon 1, UCB-Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité-UR 7424, F-69622, Villeurbanne Cedex, France
| | - Thomas De Sousa
- Universite Lyon 1, UCB-Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité-UR 7424, F-69622, Villeurbanne Cedex, France
| | - Franck Di Rienzo
- Universite Lyon 1, UCB-Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité-UR 7424, F-69622, Villeurbanne Cedex, France.
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2
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Saruco E, Saimpont A, Di Rienzo F, De Witte B, Laroyenne I, Matéo F, Lapenderie M, Solard SG, Perretant I, Frenot C, Jackson PL, Guillot A. Towards efficient motor imagery interventions after lower-limb amputation. J Neuroeng Rehabil 2024; 21:55. [PMID: 38622634 PMCID: PMC11017566 DOI: 10.1186/s12984-024-01348-3] [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: 07/21/2023] [Accepted: 03/22/2024] [Indexed: 04/17/2024] Open
Abstract
BACKGROUND The therapeutic benefits of motor imagery (MI) are now well-established in different populations of persons suffering from central nervous system impairments. However, research on similar efficacy of MI interventions after amputation remains scarce, and experimental studies were primarily designed to explore the effects of MI after upper-limb amputations. OBJECTIVES The present comparative study therefore aimed to assess the effects of MI on locomotion recovery following unilateral lower-limb amputation. METHODS Nineteen participants were assigned either to a MI group (n = 9) or a control group (n = 10). In addition to the course of physical therapy, they respectively performed 10 min per day of locomotor MI training or neutral cognitive exercises, five days per week. Participants' locomotion functions were assessed through two functional tasks: 10 m walking and the Timed Up and Go Test. Force of the amputated limb and functional level score reflecting the required assistance for walking were also measured. Evaluations were scheduled at the arrival at the rehabilitation center (right after amputation), after prosthesis fitting (three weeks later), and at the end of the rehabilitation program. A retention test was also programed after 6 weeks. RESULTS While there was no additional effect of MI on pain management, data revealed an early positive impact of MI for the 10 m walking task during the pre-prosthetic phase, and greater performance during the Timed Up and Go Test during the prosthetic phase. Also, a lower proportion of participants still needed a walking aid after MI training. Finally, the force of the amputated limb was greater at the end of rehabilitation for the MI group. CONCLUSION Taken together, these data support the integration of MI within the course of physical therapy in persons suffering from lower-limb amputations.
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Affiliation(s)
- Elodie Saruco
- Universite Lyon 1, LIBM, Laboratoire Interuniversitaire de Biologie de la Motricité, UR 7424, Villeurbanne, F-69622, France
| | - Arnaud Saimpont
- Universite Lyon 1, LIBM, Laboratoire Interuniversitaire de Biologie de la Motricité, UR 7424, Villeurbanne, F-69622, France
| | - Franck Di Rienzo
- Universite Lyon 1, LIBM, Laboratoire Interuniversitaire de Biologie de la Motricité, UR 7424, Villeurbanne, F-69622, France
| | - Benjamin De Witte
- Universite Lyon 1, LIBM, Laboratoire Interuniversitaire de Biologie de la Motricité, UR 7424, Villeurbanne, F-69622, France
| | - Isabelle Laroyenne
- Centre Médico-Chirurgical de Réadaptation des Massues - Croix-Rouge française, 92 rue Dr. Edmond Locard, Lyon Cedex 05, 69322, France
| | - Fanny Matéo
- Centre Médico-Chirurgical de Réadaptation des Massues - Croix-Rouge française, 92 rue Dr. Edmond Locard, Lyon Cedex 05, 69322, France
| | - Marion Lapenderie
- Centre Médico-Chirurgical de Réadaptation des Massues - Croix-Rouge française, 92 rue Dr. Edmond Locard, Lyon Cedex 05, 69322, France
| | - Sarah Goutte Solard
- Centre Médico-Chirurgical de Réadaptation des Massues - Croix-Rouge française, 92 rue Dr. Edmond Locard, Lyon Cedex 05, 69322, France
| | - Isabelle Perretant
- Centre Médico-Chirurgical de Réadaptation des Massues - Croix-Rouge française, 92 rue Dr. Edmond Locard, Lyon Cedex 05, 69322, France
| | - Charlotte Frenot
- Centre Médico-Chirurgical de Réadaptation des Massues - Croix-Rouge française, 92 rue Dr. Edmond Locard, Lyon Cedex 05, 69322, France
| | - Philip L Jackson
- École de Psychologie, Université Laval, Centre Interdisciplinaire de Recherche en Réadaptation et Intégration Sociale (CIRRIS), Quebec, Canada
| | - Aymeric Guillot
- Universite Lyon 1, LIBM, Laboratoire Interuniversitaire de Biologie de la Motricité, UR 7424, Villeurbanne, F-69622, France.
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3
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Monaco S, Menghi N, Crawford JD. Action-specific feature processing in the human cortex: An fMRI study. Neuropsychologia 2024; 194:108773. [PMID: 38142960 DOI: 10.1016/j.neuropsychologia.2023.108773] [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: 09/04/2023] [Revised: 11/29/2023] [Accepted: 12/18/2023] [Indexed: 12/26/2023]
Abstract
Sensorimotor integration involves feedforward and reentrant processing of sensory input. Grasp-related motor activity precedes and is thought to influence visual object processing. Yet, while the importance of reentrant feedback is well established in perception, the top-down modulations for action and the neural circuits involved in this process have received less attention. Do action-specific intentions influence the processing of visual information in the human cortex? Using a cue-separation fMRI paradigm, we found that action-specific instruction processing (manual alignment vs. grasp) became apparent only after the visual presentation of oriented stimuli, and occurred as early as in the primary visual cortex and extended to the dorsal visual stream, motor and premotor areas. Further, dorsal stream area aIPS, known to be involved in object manipulation, and the primary visual cortex showed task-related functional connectivity with frontal, parietal and temporal areas, consistent with the idea that reentrant feedback from dorsal and ventral visual stream areas modifies visual inputs to prepare for action. Importantly, both the task-dependent modulations and connections were linked specifically to the object presentation phase of the task, suggesting a role in processing the action goal. Our results show that intended manual actions have an early, pervasive, and differential influence on the cortical processing of vision.
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Affiliation(s)
- Simona Monaco
- CIMeC - Center for Mind/Brain Sciences, University of Trento, Rovereto (TN), Italy.
| | - Nicholas Menghi
- Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - J Douglas Crawford
- Center for Vision Research, York University, Toronto, Ontario M3J 1P3, Canada; Vision: Science to Applications (VISTA) Program, Neuroscience Graduate Diploma Program and Departments of Psychology, Biology, and Kinesiology and Health Science, York University, Toronto, Ontario M3J 1P3, Canada
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4
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Wojciechowski J, Jurewicz K, Dzianok P, Antonova I, Paluch K, Wolak T, Kublik E. Common and distinct BOLD correlates of Simon and flanker conflicts which can(not) be reduced to time-on-task effects. Hum Brain Mapp 2024; 45:e26549. [PMID: 38224538 PMCID: PMC10777776 DOI: 10.1002/hbm.26549] [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: 06/05/2023] [Revised: 10/25/2023] [Accepted: 11/16/2023] [Indexed: 01/17/2024] Open
Abstract
The ability to identify and resolve conflicts between standard, well-trained behaviors and behaviors required by the current context is an essential feature of cognitive control. To date, no consensus has been reached on the brain mechanisms involved in exerting such control: while some studies identified diverse patterns of activity across different conflicts, other studies reported common resources across conflict tasks or even across simple tasks devoid of the conflict component. The latter reports attributed the entire activity observed in the presence of conflict to longer time spent on the task (i.e., to the so-called time-on-task effects). Here, we used an extended Multi-Source Interference Task (MSIT) which combines Simon and flanker types of interference to determine shared and conflict-specific mechanisms of conflict resolution in fMRI and their separability from the time-on-task effects. Large portions of the activity in the dorsal attention network and decreases of activity in the default mode network were shared across the tasks and scaled in parallel with increasing reaction times. Importantly, the activity in the sensory and sensorimotor cortices, as well as in the posterior medial frontal cortex (pMFC) - a key region implicated in conflict processing - could not be exhaustively explained by the time-on-task effects.
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Affiliation(s)
- Jakub Wojciechowski
- Neurobiology of Emotions LaboratoryNencki Institute of Experimental Biology, Polish Academy of SciencesWarsawPoland
- Bioimaging Research CenterInstitute of Physiology and Pathology of HearingWarsawPoland
| | - Katarzyna Jurewicz
- Neurobiology of Emotions LaboratoryNencki Institute of Experimental Biology, Polish Academy of SciencesWarsawPoland
- Department of PhysiologyFaculty of Medicine and Health Sciences, McGill UniversityMontrealQuebecCanada
| | - Patrycja Dzianok
- Neurobiology of Emotions LaboratoryNencki Institute of Experimental Biology, Polish Academy of SciencesWarsawPoland
| | - Ingrida Antonova
- Neurobiology of Emotions LaboratoryNencki Institute of Experimental Biology, Polish Academy of SciencesWarsawPoland
- Laboratory of NeuroinformaticsNencki Institute of Experimental Biology, Polish Academy of SciencesWarsawPoland
| | - Katarzyna Paluch
- Neurobiology of Emotions LaboratoryNencki Institute of Experimental Biology, Polish Academy of SciencesWarsawPoland
- Laboratory of Neurophysiology of MindCenter of Excellence for Neural Plasticity and Brain Disorders: BRAINCITY, Nencki Institute of Experimental Biology, Polish Academy of SciencesWarsawPoland
| | - Tomasz Wolak
- Bioimaging Research CenterInstitute of Physiology and Pathology of HearingWarsawPoland
| | - Ewa Kublik
- Neurobiology of Emotions LaboratoryNencki Institute of Experimental Biology, Polish Academy of SciencesWarsawPoland
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5
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Yuan X, Zhong X, Wang C, Dai Y, Yang Y, Jiang C. Temporo-Parietal cortex activation during motor imagery in older adults: A case study of Baduanjin. Brain Cogn 2023; 173:106103. [PMID: 37922628 DOI: 10.1016/j.bandc.2023.106103] [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: 05/03/2023] [Revised: 10/03/2023] [Accepted: 10/22/2023] [Indexed: 11/07/2023]
Abstract
Age-associated cognitive and motor decline is related to central nervous system injury in older adults. Motor imagery training (MIT), as an emerging rehabilitative intervention, can activate neural basis similar to that in actual exercise, so as to promote motor function in older adults. The complex motor skills rely on the functional integration of the cerebral cortex. Understanding the neural mechanisms underlying motor imagery in older adults would support its application in motor rehabilitation and slowing cognitive decline. Based on this, the present study used functional near infrared spectroscopy (fNIRS) to record the changes in oxygen saturation in older adults (20 participants; mean age, 64.8 ± 4.5 years) during Baduanjin motor execution (ME) and motor imagery (MI). ME significantly activated the left postcentral gyrus, while the oxy-hemoglobin concentration in the right middle temporal gyrus increased significantly during motor imagery. These results indicate that advanced ME activates brain regions related to sensorimotor function, and MI increases the activation of the frontal-parietal cortex related to vision. In older adults, MI overactivated the temporo-parietal region associated with vision, and tend to be activated in the right brain.
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Affiliation(s)
- Xiaoxia Yuan
- Beijing Key Laboratory of Physical Fitness Evaluation and Technical Analysis, Capital University of Physical Education and Sports, Beijing 100191, China; The Center of Neuroscience and Sports, Capital University of Physical Education and Sports, Beijing 100191, China; School of Sport, Exercise and Rehabilitation Sciences, The University of Birmingham, Birmingham B25 2TT, UK.
| | - Xiaoke Zhong
- Beijing Key Laboratory of Physical Fitness Evaluation and Technical Analysis, Capital University of Physical Education and Sports, Beijing 100191, China; The Center of Neuroscience and Sports, Capital University of Physical Education and Sports, Beijing 100191, China.
| | - Chen Wang
- Beijing Key Laboratory of Physical Fitness Evaluation and Technical Analysis, Capital University of Physical Education and Sports, Beijing 100191, China; The Center of Neuroscience and Sports, Capital University of Physical Education and Sports, Beijing 100191, China.
| | - Yuanfu Dai
- Beijing Key Laboratory of Physical Fitness Evaluation and Technical Analysis, Capital University of Physical Education and Sports, Beijing 100191, China; The Center of Neuroscience and Sports, Capital University of Physical Education and Sports, Beijing 100191, China.
| | - Yuan Yang
- Sports Department, Beihang University, Beijing 100191, China.
| | - Changhao Jiang
- Beijing Key Laboratory of Physical Fitness Evaluation and Technical Analysis, Capital University of Physical Education and Sports, Beijing 100191, China; The Center of Neuroscience and Sports, Capital University of Physical Education and Sports, Beijing 100191, China.
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6
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Di Rienzo F, Debarnot U, Daligault S, Delpuech C, Doyon J, Guillot A. Brain plasticity underlying sleep-dependent motor consolidation after motor imagery. Cereb Cortex 2023; 33:11431-11445. [PMID: 37814365 DOI: 10.1093/cercor/bhad379] [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: 07/14/2023] [Revised: 09/18/2023] [Accepted: 09/19/2023] [Indexed: 10/11/2023] Open
Abstract
Motor imagery can, similarly to physical practice, improve motor performance through experience-based plasticity. Using magnetoencephalography, we investigated changes in brain activity associated with offline consolidation of motor sequence learning through physical practice or motor imagery. After an initial training session with either physical practice or motor imagery, participants underwent overnight consolidation. As control condition, participants underwent wake-related consolidation after training with motor imagery. Behavioral analyses revealed that overnight consolidation of motor learning through motor imagery outperformed wake-related consolidation (95% CI [0.02, 0.07], P < 0.001, RP2 = 0.05). As regions of interest, we selected the generators of event-related synchronization/desynchronization of alpha (8-12 Hz) and beta (15-30 Hz) oscillations, which predicted the level of performance on the motor sequence. This yielded a primary sensorimotor-premotor network for alpha oscillations and a cortico-cerebellar network for beta oscillations. The alpha network exhibited increased neural desynchronization after overnight consolidation compared to wake-related consolidation. By contrast, the beta network exhibited an increase in neural synchronization after wake-related consolidation compared to overnight consolidation. We provide the first evidence of parallel brain plasticity underlying behavioral changes associated with sleep-dependent consolidation of motor skill learning through motor imagery and physical practice.
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Affiliation(s)
- Franck Di Rienzo
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, LIBM, Villeurbanne, France
| | - Ursula Debarnot
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, LIBM, Villeurbanne, France
- Institut Universitaire de France, 1 Rue Descartes 75005 Paris, France
| | | | - Claude Delpuech
- CERMEP - Imagerie du Vivant, MEG Departement, Lyon, Bron 69677, France
| | - Julien Doyon
- Montreal Neurological Institute, Department of Neurology and Neurosurgery, McGill University, Montreal, QC, Canada
| | - Aymeric Guillot
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, LIBM, Villeurbanne, France
- Institut Universitaire de France, 1 Rue Descartes 75005 Paris, France
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7
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Doganci N, Iannotti GR, Coll SY, Ptak R. How embodied is cognition? fMRI and behavioral evidence for common neural resources underlying motor planning and mental rotation of bodily stimuli. Cereb Cortex 2023; 33:11146-11156. [PMID: 37804243 PMCID: PMC10687356 DOI: 10.1093/cercor/bhad352] [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: 05/23/2023] [Revised: 09/04/2023] [Accepted: 09/05/2023] [Indexed: 10/09/2023] Open
Abstract
Functional neuroimaging shows that dorsal frontoparietal regions exhibit conjoint activity during various motor and cognitive tasks. However, it is unclear whether these regions serve several, computationally independent functions, or underlie a motor "core process" that is reused to serve higher-order functions. We hypothesized that mental rotation capacity relies on a phylogenetically older motor process that is rooted within these areas. This hypothesis entails that neural and cognitive resources recruited during motor planning predict performance in seemingly unrelated mental rotation tasks. To test this hypothesis, we first identified brain regions associated with motor planning by measuring functional activations to internally-triggered vs externally-triggered finger presses in 30 healthy participants. Internally-triggered finger presses yielded significant activations in parietal, premotor, and occipitotemporal regions. We then asked participants to perform two mental rotation tasks outside the scanner, consisting of hands or letters as stimuli. Parietal and premotor activations were significant predictors of individual reaction times when mental rotation involved hands. We found no association between motor planning and performance in mental rotation of letters. Our results indicate that neural resources in parietal and premotor cortex recruited during motor planning also contribute to mental rotation of bodily stimuli, suggesting a common core component underlying both capacities.
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Affiliation(s)
- Naz Doganci
- Laboratory of Cognitive Neurorehabilitation, Department of Clinical Neurosciences, Faculty of Medicine, University of Geneva, 1206 Geneva, Switzerland
| | - Giannina Rita Iannotti
- Laboratory of Cognitive Neurorehabilitation, Department of Clinical Neurosciences, Faculty of Medicine, University of Geneva, 1206 Geneva, Switzerland
- Department of Radiology and Medical Informatics, University Hospitals of Geneva, 1206 Geneva, Switzerland
- Department of Neurosurgery, University Hospitals of Geneva, 1206 Geneva, Switzerland
| | - Sélim Yahia Coll
- Laboratory of Cognitive Neurorehabilitation, Department of Clinical Neurosciences, Faculty of Medicine, University of Geneva, 1206 Geneva, Switzerland
- Department of Neurosurgery, University Hospitals of Geneva, 1206 Geneva, Switzerland
- Division of Neurorehabilitation, University Hospitals of Geneva, 1206 Geneva, Switzerland
| | - Radek Ptak
- Laboratory of Cognitive Neurorehabilitation, Department of Clinical Neurosciences, Faculty of Medicine, University of Geneva, 1206 Geneva, Switzerland
- Division of Neurorehabilitation, University Hospitals of Geneva, 1206 Geneva, Switzerland
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8
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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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9
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Yizhar O, Tal Z, Amedi A. Loss of action-related function and connectivity in the blind extrastriate body area. Front Neurosci 2023; 17:973525. [PMID: 36968509 PMCID: PMC10035577 DOI: 10.3389/fnins.2023.973525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 02/23/2023] [Indexed: 03/11/2023] Open
Abstract
The Extrastriate Body Area (EBA) participates in the visual perception and motor actions of body parts. We recently showed that EBA’s perceptual function develops independently of visual experience, responding to stimuli with body-part information in a supramodal fashion. However, it is still unclear if the EBA similarly maintains its action-related function. Here, we used fMRI to study motor-evoked responses and connectivity patterns in the congenitally blind brain. We found that, unlike the case of perception, EBA does not develop an action-related response without visual experience. In addition, we show that congenital blindness alters EBA’s connectivity profile in a counterintuitive way—functional connectivity with sensorimotor cortices dramatically decreases, whereas connectivity with perception-related visual occipital cortices remains high. To the best of our knowledge, we show for the first time that action-related functions and connectivity in the visual cortex could be contingent on visuomotor experience. We further discuss the role of the EBA within the context of visuomotor control and predictive coding theory.
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Affiliation(s)
- Or Yizhar
- Department of Cognitive and Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
- Ivcher School of Psychology, The Institute for Brain, Mind and Technology, Reichman University, Herzliya, Israel
- Research Group Adaptive Memory and Decision Making, Max Planck Institute for Human Development, Berlin, Germany
- *Correspondence: Or Yizhar,
| | - Zohar Tal
- Faculty of Psychology and Educational Sciences, University of Coimbra, Coimbra, Portugal
| | - Amir Amedi
- Ivcher School of Psychology, The Institute for Brain, Mind and Technology, Reichman University, Herzliya, Israel
- The Ruth & Meir Rosenthal Brain Imaging Center, Reichman University, Herzliya, Israel
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10
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O’Shea H. Mapping relational links between motor imagery, action observation, action-related language, and action execution. Front Hum Neurosci 2022; 16:984053. [DOI: 10.3389/fnhum.2022.984053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 10/07/2022] [Indexed: 11/06/2022] Open
Abstract
Actions can be physically executed, observed, imagined, or simply thought about. Unifying mental processes, such as simulation, emulation, or predictive processing, are thought to underlie different action types, whether they are mental states, as in the case of motor imagery and action observation, or involve physical execution. While overlapping brain activity is typically observed across different actions which indicates commonalities, research interest is also concerned with investigating the distinct functional components of these action types. Unfortunately, untangling subtleties associated with the neurocognitive bases of different action types is a complex endeavour due to the high dimensional nature of their neural substrate (e.g., any action process is likely to activate multiple brain regions thereby having multiple dimensions to consider when comparing across them). This has impeded progress in action-related theorising and application. The present study addresses this challenge by using the novel approach of multidimensional modeling to reduce the high-dimensional neural substrate of four action-related behaviours (motor imagery, action observation, action-related language, and action execution), find the least number of dimensions that distinguish or relate these action types, and characterise their neurocognitive relational links. Data for the model comprised brain activations for action types from whole-brain analyses reported in 53 published articles. Eighty-two dimensions (i.e., 82 brain regions) for the action types were reduced to a three-dimensional model, that mapped action types in ordination space where the greater the distance between the action types, the more dissimilar they are. A series of one-way ANOVAs and post-hoc comparisons performed on the mean coordinates for each action type in the model showed that across all action types, action execution and concurrent action observation (AO)-motor imagery (MI) were most neurocognitively similar, while action execution and AO were most dissimilar. Most action types were similar on at least one neurocognitive dimension, the exception to this being action-related language. The import of the findings are discussed in terms of future research and implications for application.
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11
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Caggiano P, Grossi G, De Mattia LC, vanVelzen J, Cocchini G. Objects with motor valence affect the visual processing of human body parts: Evidence from behavioural and ERP studies. Cortex 2022; 153:194-206. [DOI: 10.1016/j.cortex.2022.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 01/06/2022] [Accepted: 04/14/2022] [Indexed: 11/16/2022]
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12
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Effects of a Combined Motor Imagery and Action Observation Intervention on Vascular Cognitive Impairment. Am J Phys Med Rehabil 2022; 101:358-366. [DOI: 10.1097/phm.0000000000001827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Kosteletou E, Simos PG, Kavroulakis E, Antypa D, Maris TG, Liavas AP, Karakasis PA, Papadaki E. Improving the Sensitivity of Task-Related Functional Magnetic Resonance Imaging Data Using Generalized Canonical Correlation Analysis. Front Hum Neurosci 2022; 15:771668. [PMID: 34970129 PMCID: PMC8712565 DOI: 10.3389/fnhum.2021.771668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 11/26/2021] [Indexed: 11/29/2022] Open
Abstract
General Linear Modeling (GLM) is the most commonly used method for signal detection in Functional Magnetic Resonance Imaging (fMRI) experiments, despite its main limitation of not taking into consideration common spatial dependencies between voxels. Multivariate analysis methods, such as Generalized Canonical Correlation Analysis (gCCA), have been increasingly employed in fMRI data analysis, due to their ability to overcome this limitation. This study, evaluates the improvement of sensitivity of the GLM, by applying gCCA to fMRI data after standard preprocessing steps. Data from a block-design fMRI experiment was used, where 25 healthy volunteers completed two action observation tasks at 1.5T. Whole brain analysis results indicated that the application of gCCA resulted in significantly higher intensity of activation in several regions in both tasks and helped reveal activation in the primary somatosensory and ventral premotor area, theoretically known to become engaged during action observation. In subject-level ROI analyses, gCCA improved the signal to noise ratio in the averaged timeseries in each preselected ROI, and resulted in increased extent of activation, although peak intensity was considerably higher in just two of them. In conclusion, gCCA is a promising method for improving the sensitivity of conventional statistical modeling in task related fMRI experiments.
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Affiliation(s)
- Emmanouela Kosteletou
- Institute of Applied and Computational Mathematics, Foundation for Research and Technology - Hellas (FORTH), Heraklion, Greece
| | - Panagiotis G Simos
- Computational Biomedicine Laboratory (CBML), Institute of Computer Science, Foundation for Research and Technology - Hellas (FORTH), Heraklion, Greece.,Department of Psychiatry, School of Medicine, University of Crete, Heraklion, Greece
| | | | - Despina Antypa
- Department of Psychiatry, School of Medicine, University of Crete, Heraklion, Greece
| | - Thomas G Maris
- Department of Medical Physics, School of Medicine, University of Crete, Heraklion, Greece
| | - Athanasios P Liavas
- School of Electrical and Computer Engineering, Technical University of Crete, Chania, Greece
| | - Paris A Karakasis
- Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, United States
| | - Efrosini Papadaki
- Computational Biomedicine Laboratory (CBML), Institute of Computer Science, Foundation for Research and Technology - Hellas (FORTH), Heraklion, Greece.,Department of Radiology, School of Medicine, University of Crete, Heraklion, Greece
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14
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Raos V, Savaki HE. Functional Imaging of the Cerebellum during Action Execution and Observation. Cereb Cortex Commun 2021; 2:tgab041. [PMID: 34409298 PMCID: PMC8366719 DOI: 10.1093/texcom/tgab041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/14/2021] [Accepted: 06/14/2021] [Indexed: 11/14/2022] Open
Abstract
We employed the 14C-deoxyglucose autoradiographic method to map the activity in the cerebellar cortex of rhesus monkeys that performed forelimb movements either in the light or in the dark and of monkeys that observed forelimb movements executed by a human experimenter. The execution of forelimb movements, both in the light and in the dark, activated the forelimb representations in the cerebellar hemispheric extensions of 1) vermian lobules IV-VI and 2) vermian lobule VIIIB, ipsilaterally to the moving forelimb. Activations in the former forelimb representation involved both a paravermal and a lateral hemispheric region. Also, Crus II posterior in the ansiform lobule (the hemispheric expansion of lobule VIIB) was activated bilaterally by execution of movements in the light but not in the dark. Action observation activated the lateral-most region of the forelimb representation in the lateral hemispheric extension of vermian lobules IV-VI, as well as the crus II posterior, bilaterally. Our results demonstrate that the cerebellar cortex, in addition to its involvement in the generation of movement, is also recruited in the perception of observed movements. Moreover, our findings suggest a modularity gradient in the primate cerebellar cortex, which progresses from unimodal (medially) to multimodal (laterally) functional areas.
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Affiliation(s)
- Vassilis Raos
- Institute of Applied and Computational Mathematics, Foundation for Research and Technology-Hellas, Heraklion, Crete 70013, Greece
| | - Helen E Savaki
- Institute of Applied and Computational Mathematics, Foundation for Research and Technology-Hellas, Heraklion, Crete 70013, Greece
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15
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Savaki HE, Kavroulakis E, Papadaki E, Maris TG, Simos PG. Action Observation Responses Are Influenced by Movement Kinematics and Target Identity. Cereb Cortex 2021; 32:490-503. [PMID: 34259867 DOI: 10.1093/cercor/bhab225] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In order to inform the debate whether cortical areas related to action observation provide a pragmatic or a semantic representation of goal-directed actions, we performed 2 functional magnetic resonance imaging (fMRI) experiments in humans. The first experiment, involving observation of aimless arm movements, resulted in activation of most of the components known to support action execution and action observation. Given the absence of a target/goal in this experiment and the activation of parieto-premotor cortical areas, which were associated in the past with direction, amplitude, and velocity of movement of biological effectors, our findings suggest that during action observation we could be monitoring movement kinematics. With the second, double dissociation fMRI experiment, we revealed the components of the observation-related cortical network affected by 1) actions that have the same target/goal but different reaching and grasping kinematics and 2) actions that have very similar kinematics but different targets/goals. We found that certain areas related to action observation, including the mirror neuron ones, are informed about movement kinematics and/or target identity, hence providing a pragmatic rather than a semantic representation of goal-directed actions. Overall, our findings support a process-driven simulation-like mechanism of action understanding, in agreement with the theory of motor cognition, and question motor theories of action concept processing.
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Affiliation(s)
- Helen E Savaki
- Institute of Applied and Computational Mathematics, Foundation for Research and Technology Hellas, Iraklion, Crete 70013, Greece.,Faculty of Medicine, School of Health Sciences, University of Crete, Iraklion, Crete 70013, Greece
| | - Eleftherios Kavroulakis
- Faculty of Medicine, School of Health Sciences, University of Crete, Iraklion, Crete 70013, Greece
| | - Efrosini Papadaki
- Faculty of Medicine, School of Health Sciences, University of Crete, Iraklion, Crete 70013, Greece.,Computational Bio-Medicine Laboratory, Institute of Computer Science, Foundation for Research and Technology Hellas, Iraklion, Crete 70013, Greece
| | - Thomas G Maris
- Faculty of Medicine, School of Health Sciences, University of Crete, Iraklion, Crete 70013, Greece.,Computational Bio-Medicine Laboratory, Institute of Computer Science, Foundation for Research and Technology Hellas, Iraklion, Crete 70013, Greece
| | - Panagiotis G Simos
- Faculty of Medicine, School of Health Sciences, University of Crete, Iraklion, Crete 70013, Greece.,Computational Bio-Medicine Laboratory, Institute of Computer Science, Foundation for Research and Technology Hellas, Iraklion, Crete 70013, Greece
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16
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Castro F, Osman L, Di Pino G, Vuckovic A, Nowicky A, Bishop D. Does sonification of action simulation training impact corticospinal excitability and audiomotor plasticity? Exp Brain Res 2021; 239:1489-1505. [PMID: 33683403 PMCID: PMC8144125 DOI: 10.1007/s00221-021-06069-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 02/19/2021] [Indexed: 01/03/2023]
Abstract
Sonification is a sensory augmentation strategy whereby a sound is associated with, and modulated by, movement. Evidence suggests that sonification could be a viable strategy to maximize learning and rehabilitation. Recent studies investigated sonification of action observation, reporting beneficial effects, especially in Parkinson's disease. However, research on simulation training-a training regime based on action observation and motor imagery, in which actions are internally simulated, without physical execution-suggest that action observation alone is suboptimal, compared to the combined use of action observation and motor imagery. In this study, we explored the effects of sonified action observation and motor imagery on corticospinal excitability, as well as to evaluate the extent of practice-dependent plasticity induced by this training. Nineteen participants were recruited to complete a practice session based on combined and congruent action observation and motor imagery (AOMI) and physical imitation of the same action. Prior to the beginning, participants were randomly assigned to one of two groups, one group (nine participants) completed the practice block with sonified AOMI, while the other group (ten participants) completed the practice without extrinsic auditory information and served as control group. To investigate practice-induced plasticity, participants completed two auditory paired associative stimulation (aPAS) protocols, one completed after the practice block, and another one completed alone, without additional interventions, at least 7 days before the practice. After the practice block, both groups significantly increased their corticospinal excitability, but sonification did not exert additional benefits, compared to non-sonified conditions. In addition, aPAS significantly increased corticospinal excitability when completed alone, but when it was primed by a practice block, no modulatory effects on corticospinal excitability were found. It is possible that sonification of combined action observation and motor imagery may not be a useful strategy to improve corticospinal, but further studies are needed to explore its relationship with performance improvements. We also confirm the neuromodulatory effect of aPAS, but its interaction with audiomotor practice remain unclear.
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Affiliation(s)
- Fabio Castro
- Research Unit of Neurophysiology and Neuroengineering of Human-Technology Interaction (NeXTlab), Università Campus Bio-Medico Di Roma, Rome, Italy.
- Centre for Cognitive Neuroscience, Department of Life Sciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge, UK.
| | - Ladan Osman
- Department of Life Sciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge, UK
| | - Giovanni Di Pino
- Research Unit of Neurophysiology and Neuroengineering of Human-Technology Interaction (NeXTlab), Università Campus Bio-Medico Di Roma, Rome, Italy
| | - Aleksandra Vuckovic
- School of Engineering, College of Engineering and Science, James Watt Building (South) University of Glasgow, Glasgow, G12 8QQ, UK
| | - Alexander Nowicky
- Centre for Cognitive Neuroscience, Department of Clinical Sciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge, UK
| | - Daniel Bishop
- Centre for Cognitive Neuroscience, Department of Life Sciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge, UK
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17
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The Neural Bases of Drawing. A Meta-analysis and a Systematic Literature Review of Neurofunctional Studies in Healthy Individuals. Neuropsychol Rev 2021; 31:689-702. [PMID: 33728526 PMCID: PMC8593049 DOI: 10.1007/s11065-021-09494-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 03/01/2021] [Indexed: 12/13/2022]
Abstract
Drawing is a multi-component process requiring a wide range of cognitive abilities. Several studies on patients with focal brain lesions and functional neuroimaging studies on healthy individuals demonstrated that drawing is associated with a wide brain network. However, the neural structures specifically related to drawing remain to be better comprehended. We conducted a systematic review complemented by a meta-analytic approach to identify the core neural underpinnings related to drawing in healthy individuals. In analysing the selected studies, we took into account the type of the control task employed (i.e. motor or non-motor) and the type of drawn stimulus (i.e. geometric, figurative, or nonsense). The results showed that a fronto-parietal network, particularly on the left side of the brain, was involved in drawing when compared with other motor activities. Drawing figurative images additionally activated the inferior frontal gyrus and the inferior temporal cortex, brain areas involved in selection of semantic features of objects and in visual semantic processing. Moreover, copying more than drawing from memory was associated with the activation of extrastriate cortex (BA 18, 19). The activation likelihood estimation coordinate-based meta-analysis revealed a core neural network specifically associated with drawing which included the premotor area (BA 6) and the inferior parietal lobe (BA 40) bilaterally, and the left precuneus (BA 7). These results showed that a fronto-parietal network is specifically involved in drawing and suggested that a crucial role is played by the (left) inferior parietal lobe, consistent with classical literature on constructional apraxia.
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18
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Argiris G, Stern Y, Habeck C. Reference Ability Neural Network-selective functional connectivity across the lifespan. Hum Brain Mapp 2020; 42:644-659. [PMID: 33108673 PMCID: PMC7814764 DOI: 10.1002/hbm.25250] [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: 07/30/2020] [Revised: 09/20/2020] [Accepted: 10/07/2020] [Indexed: 12/27/2022] Open
Abstract
Previous studies have demonstrated that four latent variables, or reference abilities (RAs), can account for the majority of age-related changes in cognition: these being episodic memory, fluid reasoning, speed of processing, and vocabulary. In the current study, we focused on RA-selective functional connectivity patterns that vary with both age and behavior. We analyzed fMRI data from 287 community-dwelling adults (20-80 years) on a battery of tests relating to the four RAs (three tests per RA = 12 tests). Functional connectivity values were calculated between a pre-defined set of 264 ROIs (nodes). Across all participants, we (a) identified connections (edges) that correlated with an RA-specific indicator variable and, indexing only these edges; (b) performed linear regression analysis per edge, regressing indicator correlations (Model 1) and connectivity values (Model 2) on Age, Behavioral Performance, and the Interaction term; and (c) took the conjunction of significant edges between models. Results revealed a different subset of edges for each RA whose connectivity strength and domain-selectivity varied with age and behavior. Strikingly, the fluid reasoning RA was particularly vulnerable to the effects of age and displayed the most extensive connectivity and selectivity "footprint" for behavior. These findings indicate that different functional networks are recruited across RA, with fluid reasoning displaying a special status among them.
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Affiliation(s)
- Georgette Argiris
- Cognitive Neuroscience Division, Columbia University, New York, New York, USA
| | - Yaakov Stern
- Cognitive Neuroscience Division, Columbia University, New York, New York, USA
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19
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Courson M, Tremblay P. Neural correlates of manual action language: Comparative review, ALE meta-analysis and ROI meta-analysis. Neurosci Biobehav Rev 2020; 116:221-238. [DOI: 10.1016/j.neubiorev.2020.06.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 03/30/2020] [Accepted: 06/18/2020] [Indexed: 10/24/2022]
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20
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Bello UM, Kranz GS, Winser SJ, Chan CCH. Neural Processes Underlying Mirror-Induced Visual Illusion: An Activation Likelihood Estimation Meta-Analysis. Front Hum Neurosci 2020; 14:276. [PMID: 32848663 PMCID: PMC7412952 DOI: 10.3389/fnhum.2020.00276] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 06/18/2020] [Indexed: 12/02/2022] Open
Abstract
Introduction: Neuroimaging studies on neural processes associated with mirror-induced visual illusion (MVI) are growing in number. Previous systematic reviews on these studies used qualitative approaches. Objective: The present study conducted activation likelihood estimation (ALE) meta-analysis to locate the brain areas for unfolding the neural processes associated with the MVI. Method: We searched the CINAHL, MEDLINE, Scopus, and PubMed databases and identified eight studies (with 14 experiments) that met the inclusion criteria. Results: Contrasting with a rest condition, strong convergence in the bilateral primary and premotor areas and the inferior parietal lobule suggested top-down motor planning and execution. In addition, convergence was identified in the ipsilateral precuneus, cerebellum, superior frontal gyrus, and superior parietal lobule, clusters corresponding to the static hidden hand indicating self-processing operations, somatosensory processing, and motor control. When contrasting with an active movement condition, additional substantial convergence was revealed in visual-related areas, such as the ipsilateral cuneus, fusiform gyrus, middle occipital gyrus (visual area V2) and lingual gyrus, which mediate basic visual processing. Conclusions: To the best of our knowledge, the current meta-analysis is the first to reveal the visualization, mental rehearsal and motor-related processes underpinning the MVI and offers theoretical support on using MVI as a clinical intervention for post-stroke patients.
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Affiliation(s)
- Umar Muhammad Bello
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China.,Department of Physiotherapy, Yobe State University Teaching Hospital, Damaturu, Nigeria
| | - Georg S Kranz
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China.,Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Stanley John Winser
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China
| | - Chetwyn C H Chan
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China.,Applied Cognitive Neuroscience Laboratory, The Hong Kong Polytechnic University, Hong Kong, China.,University Research Facility in Behavioral and Systems Neuroscience, The Hong Kong Polytechnic University, Hong Kong, China
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21
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Bello UM, Winser SJ, Chan CCH. Role of kinaesthetic motor imagery in mirror-induced visual illusion as intervention in post-stroke rehabilitation. Rev Neurosci 2020; 31:659-674. [PMID: 32229682 DOI: 10.1515/revneuro-2019-0106] [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: 11/18/2019] [Accepted: 01/15/2020] [Indexed: 01/12/2023]
Abstract
Mirror-induced visual illusion obtained through mirror therapy is widely used to facilitate motor recovery after stroke. Activation of primary motor cortex (M1) ipsilateral to the moving limb has been reported during mirror-induced visual illusion. However, the mechanism through which the mirror illusion elicits motor execution processes without movements observed in the mirrored limb remains unclear. This study aims to review evidence based on brain imaging studies for testing the hypothesis that neural processes associated with kinaesthetic motor imagery are attributed to ipsilateral M1 activation. Four electronic databases were searched. Studies on functional brain imaging, investigating the instant effects of mirror-induced visual illusion among stroke survivors and healthy participants were included. Thirty-five studies engaging 78 stroke survivors and 396 healthy participants were reviewed. Results of functional brain scans (n = 20) indicated that half of the studies (n = 10, 50%) reported significant changes in the activation of ipsilateral M1, which mediates motor preparation and execution. Other common neural substrates included primary somatosensory cortex (45%, kinaesthesia), precuneus (40%, image generation and self-processing operations) and cerebellum (20%, motor control). Similar patterns of ipsilateral M1 activations were observed in the two groups. These neural substrates mediated the generation, maintenance, and manipulation of motor-related images, which were the key processes in kinaesthetic motor imagery. Relationships in terms of shared neural substrates and mental processes between mirror-induced visual illusion and kinaesthetic motor imagery generate new evidence on the role of the latter in mirror therapy. Future studies should investigate the imagery processes in illusion training for post-stroke patients.
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Affiliation(s)
- Umar M Bello
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, No. 11 Yuk Choi Road, Hung Hom, Kowloon, Hong Kong, China.,Department of Physiotherapy, Yobe State University Teaching Hospital, Along Potiskum Road, Damaturu, Yobe State, Nigeria
| | - Stanley J Winser
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, No. 11 Yuk Choi Road, Hung Hom, Kowloon, Hong Kong, China
| | - Chetwyn C H Chan
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, No. 11 Yuk Choi Road, Hung Hom, Kowloon, Hong Kong, China.,Applied Cognitive Neuroscience Laboratory, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, No. 11 Yuk Choi Road, Hung Hom, Kowloon, Hong Kong, China.,University Research Facility in Behavioral and Systems Neuroscience, The Hong Kong Polytechnic University, No. 11 Yuk Choi Road, Hung Hom, Kowloon, Hong Kong, China
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22
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Lima Portugal LC, Alves RDCS, Junior OF, Sanchez TA, Mocaiber I, Volchan E, Smith Erthal F, David IA, Kim J, Oliveira L, Padmala S, Chen G, Pessoa L, Pereira MG. Interactions between emotion and action in the brain. Neuroimage 2020; 214:116728. [PMID: 32199954 PMCID: PMC7485650 DOI: 10.1016/j.neuroimage.2020.116728] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 03/04/2020] [Accepted: 03/07/2020] [Indexed: 11/16/2022] Open
Abstract
A growing literature supports the existence of interactions between emotion and action in the brain, and the central participation of the anterior midcingulate cortex (aMCC) in this regard. In the present functional magnetic resonance imaging study, we sought to investigate the role of self-relevance during such interactions by varying the context in which threating pictures were presented (with guns pointed towards or away from the observer). Participants performed a simple visual detection task following exposure to such stimuli. Except for voxelwise tests, we adopted a Bayesian analysis framework which evaluated evidence for the hypotheses of interest, given the data, in a continuous fashion. Behaviorally, our results demonstrated a valence by context interaction such that there was a tendency of speeding up responses to targets after viewing threat pictures directed towards the participant. In the brain, interaction patterns that paralleled those observed behaviorally were observed most notably in the middle temporal gyrus, supplementary motor area, precentral gyrus, and anterior insula. In these regions, activity was overall greater during threat conditions relative to neutral ones, and this effect was enhanced in the directed towards context. A valence by context interaction was observed in the aMCC too, where we also observed a correlation (across participants) of evoked responses and reaction time data. Taken together, our study revealed the context-sensitive engagement of motor-related areas during emotional perception, thus supporting the idea that emotion and action interact in important ways in the brain.
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Affiliation(s)
- Liana Catarina Lima Portugal
- Department of Physiology and Pharmacology, Laboratory of Neurophysiology of Behavior, Biomedical Institute, Federal Fluminense University, Niterói, RJ, Brazil
| | - Rita de Cássia Soares Alves
- Department of Physiology and Pharmacology, Laboratory of Neurophysiology of Behavior, Biomedical Institute, Federal Fluminense University, Niterói, RJ, Brazil
| | - Orlando Fernandes Junior
- Laboratory of Neuroimaging and Psychophysiology, Department of Radiology, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Tiago Arruda Sanchez
- Laboratory of Neuroimaging and Psychophysiology, Department of Radiology, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Izabela Mocaiber
- Laboratory of Cognitive Psychophysiology, Department of Natural Sciences, Institute of Humanities and Health, Federal Fluminense University, Rio das Ostras, RJ, Brazil
| | - Eliane Volchan
- Laboratory of Neurobiology II, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Fátima Smith Erthal
- Laboratory of Neurobiology II, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Isabel Antunes David
- Department of Physiology and Pharmacology, Laboratory of Neurophysiology of Behavior, Biomedical Institute, Federal Fluminense University, Niterói, RJ, Brazil
| | - Jongwan Kim
- Department of Psychology, University of Maryland, College Park, MD, USA
| | - Leticia Oliveira
- Department of Physiology and Pharmacology, Laboratory of Neurophysiology of Behavior, Biomedical Institute, Federal Fluminense University, Niterói, RJ, Brazil
| | | | - Gang Chen
- Scientific and Statistical Computing Core, National Institute of Mental Health, USA
| | - Luiz Pessoa
- Department of Psychology, University of Maryland, College Park, MD, USA; Maryland Neuroimaging Center, University of Maryland, College Park, MD, USA
| | - Mirtes Garcia Pereira
- Department of Physiology and Pharmacology, Laboratory of Neurophysiology of Behavior, Biomedical Institute, Federal Fluminense University, Niterói, RJ, Brazil.
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23
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Cerritelli F, Chiacchiaretta P, Gambi F, Perrucci MG, Barassi G, Visciano C, Bellomo RG, Saggini R, Ferretti A. Effect of manual approaches with osteopathic modality on brain correlates of interoception: an fMRI study. Sci Rep 2020; 10:3214. [PMID: 32081945 PMCID: PMC7035282 DOI: 10.1038/s41598-020-60253-6] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 02/10/2020] [Indexed: 01/17/2023] Open
Abstract
The present randomised placebo controlled trial explored the extent to which osteopathic manipulative treatment (OMT) affects brain activity, particularly the insula, during both an “interoceptive awareness” and “exteroceptive awareness” task in a sample of 32 right-handed adults with chronic Low Back Pain (CLBP) randomly assigned to either the OMT or sham group. Patients received 4 weekly sessions and fMRI was performed at enrolment (T0), immediately after the first session (T1) and at 1 month (T2). The results revealed that the OMT produced a distinct and specific reduction in BOLD response in specific brain areas related to interoception, i.e., bilateral insula, ACC, left striatum and rMFG. The observed trend across the three time points appears uncharacteristic. At T1, a marginal increase of the BOLD response was observed in all the above-mentioned areas except the rMFG, which showed a decrease in BOLD response. At T2, the response was the opposite: areas related to interoception (bilateral insula and ACC) as well as the rMFG and left striatum demonstrated significant decreased in BOLD response. The findings of this study provide an insight into the effects of manual therapies on brain activity and have implications for future research in the field.
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Affiliation(s)
- Francesco Cerritelli
- Department of Neuroscience, Imaging and Clinical Sciences, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy.,ITAB-Institute for Advanced Biomedical Technologies, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy.,Clinical-Based Human Research Department-C.O.M.E. Collaboration ONLUS, Pescara, Italy
| | - Piero Chiacchiaretta
- Department of Neuroscience, Imaging and Clinical Sciences, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy. .,ITAB-Institute for Advanced Biomedical Technologies, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy.
| | - Francesco Gambi
- Department of Neuroscience, Imaging and Clinical Sciences, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy.,ITAB-Institute for Advanced Biomedical Technologies, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Mauro Gianni Perrucci
- Department of Neuroscience, Imaging and Clinical Sciences, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy.,ITAB-Institute for Advanced Biomedical Technologies, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Giovanni Barassi
- Department of Medical Oral and Biotechnological Science, "Gabriele d'Annunzio" University, Chieti-Pescara, Italy
| | - Christian Visciano
- Department of Medical Oral and Biotechnological Science, "Gabriele d'Annunzio" University, Chieti-Pescara, Italy
| | | | - Raoul Saggini
- Department of Medical Oral and Biotechnological Science, "Gabriele d'Annunzio" University, Chieti-Pescara, Italy
| | - Antonio Ferretti
- Department of Neuroscience, Imaging and Clinical Sciences, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy.,ITAB-Institute for Advanced Biomedical Technologies, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy
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24
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Carson RG, Buick AR. Neuromuscular electrical stimulation-promoted plasticity of the human brain. J Physiol 2019; 599:2375-2399. [PMID: 31495924 DOI: 10.1113/jp278298] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 08/16/2019] [Indexed: 12/21/2022] Open
Abstract
The application of neuromuscular electrical stimulation (NMES) to paretic limbs has demonstrated utility for motor rehabilitation following brain injury. When NMES is delivered to a mixed peripheral nerve, typically both efferent and afferent fibres are recruited. Muscle contractions brought about by the excitation of motor neurons are often used to compensate for disability by assisting actions such as the formation of hand aperture, or by preventing others including foot drop. In this context, exogenous stimulation provides a direct substitute for endogenous neural drive. The goal of the present narrative review is to describe the means through which NMES may also promote sustained adaptations within central motor pathways, leading ultimately to increases in (intrinsic) functional capacity. There is an obvious practical motivation, in that detailed knowledge concerning the mechanisms of adaptation has the potential to inform neurorehabilitation practice. In addition, responses to NMES provide a means of studying CNS plasticity at a systems level in humans. We summarize the fundamental aspects of NMES, focusing on the forms that are employed most commonly in clinical and experimental practice. Specific attention is devoted to adjuvant techniques that further promote adaptive responses to NMES thereby offering the prospect of increased therapeutic potential. The emergent theme is that an association with centrally initiated neural activity, whether this is generated in the context of NMES triggered by efferent drive or via indirect methods such as mental imagery, may in some circumstances promote the physiological changes that can be induced through peripheral electrical stimulation.
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Affiliation(s)
- Richard G Carson
- Trinity College Institute of Neuroscience and School of Psychology, Trinity College Dublin, Dublin 2, Ireland.,School of Psychology, Queen's University Belfast, Belfast, BT7 1NN, UK.,School of Human Movement and Nutrition Sciences, University of Queensland, Brisbane, QLD 4072, Australia
| | - Alison R Buick
- School of Psychology, Queen's University Belfast, Belfast, BT7 1NN, UK
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25
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Savaki HE, Raos V. Action perception and motor imagery: Mental practice of action. Prog Neurobiol 2019; 175:107-125. [PMID: 30711619 DOI: 10.1016/j.pneurobio.2019.01.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 01/21/2019] [Accepted: 01/28/2019] [Indexed: 02/06/2023]
Abstract
Motor cognition is related to the planning and generation of actions as well as to the recognition and imagination of motor acts. Recently, there is evidence that the motor system participates not only in overt actions but also in mental processes supporting covert actions. Within this framework, we have investigated the cortical areas engaged in execution, observation, and imagination of the same action, by the use of the high resolution quantitative 14C-deoxyglucose method in monkeys and by fMRI in humans, throughout the entire primate brain. Our data demonstrated that observing or imagining an action excites virtually the same sensory-motor cortical network which supports execution of that same action. In general agreement with the results of five relevant meta-analyses that we discuss extensively, our results imply mental practice, i.e. internal rehearsal of the action including movements and their sensory effects. We suggest that we actively perceive and imagine actions by selecting and running off-line restored sensory-motor memories, by mentally simulating the actions. We provide empirical evidence that mental simulation of actions underlies motor cognition, and conceptual representations are grounded in sensory-motor codes. Motor cognition may, therefore, be embodied and modal. Finally, we consider questions regarding agency attribution and the possible causal or epiphenomenal role the involved sensory-motor network could play in motor cognition.
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Affiliation(s)
- Helen E Savaki
- Department of Basic Sciences, School of Medicine, University of Crete, Vassilika Vouton, 70013, Iraklion, Crete, Greece; Computational Neuroscience Group, Institute of Applied and Computational Mathematics, Foundation for Research and Technology-Hellas, Plastira N 100 str, 70013, Iraklion, Crete, Greece.
| | - Vassilis Raos
- Department of Basic Sciences, School of Medicine, University of Crete, Vassilika Vouton, 70013, Iraklion, Crete, Greece; Computational Neuroscience Group, Institute of Applied and Computational Mathematics, Foundation for Research and Technology-Hellas, Plastira N 100 str, 70013, Iraklion, Crete, Greece
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26
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Role of the human mirror system in automatic processing of musical emotion: Evidence from EEG. ACTA PSYCHOLOGICA SINICA 2019. [DOI: 10.3724/sp.j.1041.2019.00795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Jiang J, Liu F, Zhou L, Jiang C. The neural basis for understanding imitation-induced musical meaning: The role of the human mirror system. Behav Brain Res 2018; 359:362-369. [PMID: 30458161 DOI: 10.1016/j.bbr.2018.11.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 11/12/2018] [Accepted: 11/13/2018] [Indexed: 11/28/2022]
Abstract
Music can convey meanings by imitating phenomena of the extramusical world, and these imitation-induced musical meanings can be understood by listeners. Although the human mirror system (HMS) is implicated in imitation, little is known about the HMS's role in making sense of meaning that derives from musical imitation. To answer this question, we used fMRI to examine listeners' brain activities during the processing of imitation-induced musical meaning with a cross-modal semantic priming paradigm. Eleven normal individuals and 11 individuals with congenital amusia, a neurodevelopmental disorder of musical processing, participated in the experiment. Target pictures with either an upward or downward movement were primed by semantically congruent or incongruent melodic sequences characterized by the direction of pitch change (upward or downward). When contrasting the incongruent with the congruent condition between the two groups, we found greater activations in the left supramarginal gyrus/inferior parietal lobule and inferior frontal gyrus in normals but not in amusics. The implications of these findings in terms of the role of the HMS in understanding imitation-induced musical meaning are discussed.
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Affiliation(s)
- Jun Jiang
- Music College, Shanghai Normal University, Shanghai, China
| | - Fang Liu
- School of Psychology and Clinical Language Sciences, University of Reading, Reading, UK
| | - Linshu Zhou
- Music College, Shanghai Normal University, Shanghai, China
| | - Cunmei Jiang
- Music College, Shanghai Normal University, Shanghai, China; Institute of Psychology, Shanghai Normal University, Shanghai, China.
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28
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Thomas RM, De Sanctis T, Gazzola V, Keysers C. Where and how our brain represents the temporal structure of observed action. Neuroimage 2018; 183:677-697. [PMID: 30165253 PMCID: PMC6215330 DOI: 10.1016/j.neuroimage.2018.08.056] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 08/20/2018] [Accepted: 08/23/2018] [Indexed: 12/30/2022] Open
Abstract
Reacting faster to the behaviour of others provides evolutionary advantages. Reacting to unpredictable events takes hundreds of milliseconds. Understanding where and how the brain represents what actions are likely to follow one another is, therefore, important. Everyday actions occur in predictable sequences, yet neuroscientists focus on how brains respond to unexpected, individual motor acts. Using fMRI, we show the brain encodes sequence-related information in the motor system. Using EEG, we show visual responses are faster and smaller for predictable sequences. We hope this paradigm encourages the field to shift its focus from single acts to motor sequences. It sheds light on how we adapt to the actions of others and suggests that the motor system may implement perceptual predictive coding.
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Affiliation(s)
- R M Thomas
- The Netherlands Institute for Neuroscience, An Institute of the Royal Netherlands Academy of Arts and Sciences (KNAW), Amsterdam, the Netherlands; Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - T De Sanctis
- The Netherlands Institute for Neuroscience, An Institute of the Royal Netherlands Academy of Arts and Sciences (KNAW), Amsterdam, the Netherlands; PharmAccess Foundation, Amsterdam, Netherlands
| | - V Gazzola
- The Netherlands Institute for Neuroscience, An Institute of the Royal Netherlands Academy of Arts and Sciences (KNAW), Amsterdam, the Netherlands; Brain & Cognition, Department of Psychology, University of Amsterdam, Amsterdam, the Netherlands.
| | - C Keysers
- The Netherlands Institute for Neuroscience, An Institute of the Royal Netherlands Academy of Arts and Sciences (KNAW), Amsterdam, the Netherlands; Brain & Cognition, Department of Psychology, University of Amsterdam, Amsterdam, the Netherlands.
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29
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Bagarinao E, Yoshida A, Ueno M, Terabe K, Kato S, Isoda H, Nakai T. Improved Volitional Recall of Motor-Imagery-Related Brain Activation Patterns Using Real-Time Functional MRI-Based Neurofeedback. Front Hum Neurosci 2018; 12:158. [PMID: 29740302 PMCID: PMC5928248 DOI: 10.3389/fnhum.2018.00158] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 04/05/2018] [Indexed: 11/13/2022] Open
Abstract
Motor imagery (MI), a covert cognitive process where an action is mentally simulated but not actually performed, could be used as an effective neurorehabilitation tool for motor function improvement or recovery. Recent approaches employing brain–computer/brain–machine interfaces to provide online feedback of the MI during rehabilitation training have promising rehabilitation outcomes. In this study, we examined whether participants could volitionally recall MI-related brain activation patterns when guided using neurofeedback (NF) during training. The participants’ performance was compared to that without NF. We hypothesized that participants would be able to consistently generate the relevant activation pattern associated with the MI task during training with NF compared to that without NF. To assess activation consistency, we used the performance of classifiers trained to discriminate MI-related brain activation patterns. Our results showed significantly higher predictive values of MI-related activation patterns during training with NF. Additionally, this improvement in the classification performance tends to be associated with the activation of middle temporal gyrus/inferior occipital gyrus, a region associated with visual motion processing, suggesting the importance of performance monitoring during MI task training. Taken together, these findings suggest that the efficacy of MI training, in terms of generating consistent brain activation patterns relevant to the task, can be enhanced by using NF as a mechanism to enable participants to volitionally recall task-related brain activation patterns.
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Affiliation(s)
| | - Akihiro Yoshida
- Department of Radiological Sciences, Nagoya University Graduate School of Medicine, Nagoya University, Nagoya, Japan.,NeuroImaging and Informatics Lab, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Mika Ueno
- NeuroImaging and Informatics Lab, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Kazunori Terabe
- Graduate School of Engineering, Nagoya Institute of Technology, Nagoya, Japan
| | - Shohei Kato
- Graduate School of Engineering, Nagoya Institute of Technology, Nagoya, Japan
| | - Haruo Isoda
- Brain & Mind Research Center, Nagoya University, Nagoya, Japan.,Department of Radiological Sciences, Nagoya University Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | - Toshiharu Nakai
- Department of Radiological Sciences, Nagoya University Graduate School of Medicine, Nagoya University, Nagoya, Japan.,NeuroImaging and Informatics Lab, National Center for Geriatrics and Gerontology, Obu, Japan
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30
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Is the extrastriate body area part of the dorsal visuomotor stream? Brain Struct Funct 2017; 223:31-46. [PMID: 28702735 PMCID: PMC5772142 DOI: 10.1007/s00429-017-1469-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 07/01/2017] [Indexed: 01/17/2023]
Abstract
The extrastriate body area (EBA) processes visual information about body parts, and it is considered one among a series of category-specific perceptual modules distributed across the occipito-temporal cortex. However, recent evidence raises the possibility that EBA might also provide an interface between perception and action, linking the ventral and dorsal streams of visual information processing. Here, we assess anatomical evidence supporting this possibility. We localise EBA in individual subjects using a perceptual task and compare the characteristics of its functional and structural connectivity to those of two perceptual areas, the lateral occipital complex (LOC) and the fusiform body area (FBA), separately for each hemisphere. We apply complementary analyses of resting-state fMRI and diffusion-weighted MRI data in a group of healthy right-handed human subjects (N = 31). Functional and structural connectivity profiles indicate that EBA interacts more strongly with dorsal-stream regions compared to other portions of the occipito-temporal cortex involved in processing body parts (FBA) and object identification (LOC). These findings provide anatomical ground for a revision of the functional role of EBA. Building on a number of recent observations, we suggest that EBA contributes to planning goal-directed actions, possibly by specifying a desired postural configuration to parieto-frontal areas involved in computing movement parameters.
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