1
|
Saini M, Gurjar A, Muthukrishnan SP, Kaur S, Sharma R, Tayade PT. Global Effect on Cortical Activity in Young Indian Males in Response to "OM" Chanting: A High-Density Quantitative Electro-Encephalography Study. Ann Neurosci 2024; 31:176-185. [PMID: 39156622 PMCID: PMC11325691 DOI: 10.1177/09727531231183219] [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: 02/09/2023] [Accepted: 05/30/2023] [Indexed: 08/20/2024] Open
Abstract
Background Meditation using the "OM" mantra is the most widely used practice in India. Though reports have been published about the relaxation effect during both verbal "OM" chanting and listening to "OM" chanting, there is a paucity of literature concerning the cortical areas activated/deactivated after verbal "OM" chanting and listening to "OM" chanting using quantitative electro-encephalography (qEEG). Purpose The objective of this study was to compare the effects of verbal "OM" chanting and listening to "OM" chanting on cortical sources as compared to baseline, as assessed by qEEG. Method Twenty adult male subjects with a mean age of 27.5 ± 7.5 years and no past or present history of psychiatric, neurological, or auditory disorders or previous exposure to yoga and meditation were recruited from the undergraduate and postgraduate student population of AIIMS, New Delhi. Subjects were given a paradigm designed using E-prime for both verbal and listening to "OM" chanting of 5 min each and a 5-min relaxation period in between the tasks. Electroencephalography recording was done using a 128-channel geodesic sensor net with band-pass filtered at 1-70 Hz, and 20-sec data of eyes-closed condition, post-verbal "OM", and post-listening to "OM" chanting were segmented and pre-processed. Further, source analysis was performed on the data using standardized low-resolution electromagnetic tomography. Result The pre (baseline) versus post-verbal "OM" (p < .05) and post-listening to "OM" (p < .05) chanting showed significant differences in similar cortical areas in both verbal "OM" and listening to "OM" chanting except the three areas, that is, the orbital gyrus, the rectal gyrus, and the sub-callosal gyrus, which were additionally activated post-listening to "OM" chanting. Both verbal and listening to "OM" chanting induced activation of similar cortical areas, which were classified as the nodes/hubs of specific resting-state networks (RSNs) such as the attentional network, frontoparietal control network, and default mode network. Conclusion The study results suggest that "OM" chanting could facilitate flexible switching between various RSNs to induce a relaxed state and could improve attention simultaneously.Both verbal and listening to "OM" chanting induced common activated areas that are classified into frontoparietal, dorsal attention, and default mode network areas. And it is hypothesized that flexible switching between these RSNs could induce a relaxed state and improve attention simultaneously with the possible role of the frontoparietal network.
Collapse
Affiliation(s)
- Manorma Saini
- Department of Physiology, All India Institute of Medical Sciences, Kalyani, West Bengal, India
| | - Ankit Gurjar
- Department of Physiology, All India Institute of Medical Sciences, New Delhi, India
| | | | - Simran Kaur
- Department of Physiology, All India Institute of Medical Sciences, New Delhi, India
| | - Ratna Sharma
- Department of Physiology, All India Institute of Medical Sciences, New Delhi, India
| | - Prashant T. Tayade
- Department of Physiology, All India Institute of Medical Sciences, New Delhi, India
| |
Collapse
|
2
|
Deroche MLD, Wolfe J, Neumann S, Manning J, Hanna L, Towler W, Wilson C, Bien AG, Miller S, Schafer E, Gemignani J, Alemi R, Muthuraman M, Koirala N, Gracco VL. Cross-modal plasticity in children with cochlear implant: converging evidence from EEG and functional near-infrared spectroscopy. Brain Commun 2024; 6:fcae175. [PMID: 38846536 PMCID: PMC11154148 DOI: 10.1093/braincomms/fcae175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 04/02/2024] [Accepted: 05/17/2024] [Indexed: 06/09/2024] Open
Abstract
Over the first years of life, the brain undergoes substantial organization in response to environmental stimulation. In a silent world, it may promote vision by (i) recruiting resources from the auditory cortex and (ii) making the visual cortex more efficient. It is unclear when such changes occur and how adaptive they are, questions that children with cochlear implants can help address. Here, we examined 7-18 years old children: 50 had cochlear implants, with delayed or age-appropriate language abilities, and 25 had typical hearing and language. High-density electroencephalography and functional near-infrared spectroscopy were used to evaluate cortical responses to a low-level visual task. Evidence for a 'weaker visual cortex response' and 'less synchronized or less inhibitory activity of auditory association areas' in the implanted children with language delays suggests that cross-modal reorganization can be maladaptive and does not necessarily strengthen the dominant visual sense.
Collapse
Affiliation(s)
- Mickael L D Deroche
- Department of Psychology, Concordia University, Montreal, Quebec, Canada, H4B 1R6
| | - Jace Wolfe
- Hearts for Hearing Foundation, Oklahoma City, OK 73120, USA
| | - Sara Neumann
- Hearts for Hearing Foundation, Oklahoma City, OK 73120, USA
| | - Jacy Manning
- Hearts for Hearing Foundation, Oklahoma City, OK 73120, USA
| | - Lindsay Hanna
- Hearts for Hearing Foundation, Oklahoma City, OK 73120, USA
| | - Will Towler
- Hearts for Hearing Foundation, Oklahoma City, OK 73120, USA
| | - Caleb Wilson
- Department of Otolaryngology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Alexander G Bien
- Department of Otolaryngology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Sharon Miller
- Department of Audiology & Speech-Language Pathology, University of North Texas, Denton, TX 76201, USA
| | - Erin Schafer
- Department of Audiology & Speech-Language Pathology, University of North Texas, Denton, TX 76201, USA
| | - Jessica Gemignani
- Department of Developmental and Social Psychology, University of Padova, 35131 Padua, Italy
| | - Razieh Alemi
- Department of Psychology, Concordia University, Montreal, Quebec, Canada, H4B 1R6
| | - Muthuraman Muthuraman
- Section of Neural Engineering with Signal Analytics and Artificial Intelligence, Department of Neurology, University Hospital Würzburg, 97080 Würzburg, Germany
| | | | | |
Collapse
|
3
|
Michel CM, Brechet L, Schiller B, Koenig T. Current State of EEG/ERP Microstate Research. Brain Topogr 2024; 37:169-180. [PMID: 38349451 PMCID: PMC10884048 DOI: 10.1007/s10548-024-01037-3] [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: 01/22/2024] [Accepted: 01/31/2024] [Indexed: 02/23/2024]
Abstract
The analysis of EEG microstates for investigating rapid whole-brain network dynamics during rest and tasks has become a standard practice in the EEG research community, leading to a substantial increase in publications across various affective, cognitive, social and clinical neuroscience domains. Recognizing the growing significance of this analytical method, the authors aim to provide the microstate research community with a comprehensive discussion on methodological standards, unresolved questions, and the functional relevance of EEG microstates. In August 2022, a conference was hosted in Bern, Switzerland, which brought together many researchers from 19 countries. During the conference, researchers gave scientific presentations and engaged in roundtable discussions aiming at establishing steps toward standardizing EEG microstate analysis methods. Encouraged by the conference's success, a special issue was launched in Brain Topography to compile the current state-of-the-art in EEG microstate research, encompassing methodological advancements, experimental findings, and clinical applications. The call for submissions for the special issue garnered 48 contributions from researchers worldwide, spanning reviews, meta-analyses, tutorials, and experimental studies. Following a rigorous peer-review process, 33 papers were accepted whose findings we will comprehensively discuss in this Editorial.
Collapse
Affiliation(s)
- Christoph M Michel
- Functional Brain Mapping Lab, Department of Basic Neurosciences, Medical Faculty, University of Geneva, Geneva, Switzerland.
- Center for Biomedical Imaging (CIBM), Lausanne, Geneva, Switzerland.
| | - Lucie Brechet
- Department of Readaptation and Geriatrics, Medical Faculty, University of Geneva, Geneva, Switzerland
| | - Bastian Schiller
- Laboratory for Biological Psychology, Clinical Psychology, and Psychotherapy, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Thomas Koenig
- Translational Research Center, University Hospital of Psychiatry, University of Bern, Bern, Switzerland
| |
Collapse
|
4
|
Koirala N, Deroche MLD, Wolfe J, Neumann S, Bien AG, Doan D, Goldbeck M, Muthuraman M, Gracco VL. Dynamic networks differentiate the language ability of children with cochlear implants. Front Neurosci 2023; 17:1141886. [PMID: 37409105 PMCID: PMC10318154 DOI: 10.3389/fnins.2023.1141886] [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: 01/10/2023] [Accepted: 05/29/2023] [Indexed: 07/07/2023] Open
Abstract
Background Cochlear implantation (CI) in prelingually deafened children has been shown to be an effective intervention for developing language and reading skill. However, there is a substantial proportion of the children receiving CI who struggle with language and reading. The current study-one of the first to implement electrical source imaging in CI population was designed to identify the neural underpinnings in two groups of CI children with good and poor language and reading skill. Methods Data using high density electroencephalography (EEG) under a resting state condition was obtained from 75 children, 50 with CIs having good (HL) or poor language skills (LL) and 25 normal hearing (NH) children. We identified coherent sources using dynamic imaging of coherent sources (DICS) and their effective connectivity computing time-frequency causality estimation based on temporal partial directed coherence (TPDC) in the two CI groups compared to a cohort of age and gender matched NH children. Findings Sources with higher coherence amplitude were observed in three frequency bands (alpha, beta and gamma) for the CI groups when compared to normal hearing children. The two groups of CI children with good (HL) and poor (LL) language ability exhibited not only different cortical and subcortical source profiles but also distinct effective connectivity between them. Additionally, a support vector machine (SVM) algorithm using these sources and their connectivity patterns for each CI group across the three frequency bands was able to predict the language and reading scores with high accuracy. Interpretation Increased coherence in the CI groups suggest overall that the oscillatory activity in some brain areas become more strongly coupled compared to the NH group. Moreover, the different sources and their connectivity patterns and their association to language and reading skill in both groups, suggest a compensatory adaptation that either facilitated or impeded language and reading development. The neural differences in the two groups of CI children may reflect potential biomarkers for predicting outcome success in CI children.
Collapse
Affiliation(s)
- Nabin Koirala
- Child Study Center, Yale School of Medicine, Yale University, New Haven, CT, United States
| | | | - Jace Wolfe
- Hearts for Hearing Foundation, Oklahoma City, OK, United States
| | - Sara Neumann
- Hearts for Hearing Foundation, Oklahoma City, OK, United States
| | - Alexander G. Bien
- Department of Otolaryngology – Head and Neck Surgery, University of Oklahoma Medical Center, Oklahoma City, OK, United States
| | - Derek Doan
- University of Oklahoma College of Medicine, Oklahoma City, OK, United States
| | - Michael Goldbeck
- University of Oklahoma College of Medicine, Oklahoma City, OK, United States
| | - Muthuraman Muthuraman
- Department of Neurology, Neural Engineering with Signal Analytics and Artificial Intelligence (NESA-AI), Universitätsklinikum Würzburg, Würzburg, Germany
| | - Vincent L. Gracco
- Child Study Center, Yale School of Medicine, Yale University, New Haven, CT, United States
- School of Communication Sciences and Disorders, McGill University, Montreal, QC, Canada
| |
Collapse
|
5
|
Research on Top Archer’s EEG Microstates and Source Analysis in Different States. Brain Sci 2022; 12:brainsci12081017. [PMID: 36009079 PMCID: PMC9405655 DOI: 10.3390/brainsci12081017] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/08/2022] [Accepted: 07/28/2022] [Indexed: 01/25/2023] Open
Abstract
The electroencephalograph (EEG) microstate is a method used to describe the characteristics of the EEG signal through the brain scalp electrode potential’s spatial distribution; as such, it reflects the changes in the brain’s functional state. The EEGs of 13 elite archers from China’s national archery team and 13 expert archers from China’s provincial archery team were recorded under the alpha rhythm during the resting state (with closed eyes) and during archery aiming. By analyzing the differences between the EEG microstate parameters and the correlation between these parameters with archery performance, as well as by combining our findings through standardized low-resolution brain electromagnetic tomography source analysis (sLORETA), we explored the changes in the neural activity of professional archers of different levels, under different states. The results of the resting state study demonstrated that the duration, occurrence, and coverage in microstate D of elite archers were significantly higher than those of expert archers and that their other microstates had the greatest probability of transferring to microstate D. During the archery aiming state, the average transition probability of the other microstates transferring to microstate in the left temporal region was the highest observed in the two groups of archers. Moreover, there was a significant negative correlation between the duration and coverage of microstates in the frontal region of elite archers and their archery performance. Our findings indicate that elite archers are more active in the dorsal attention system and demonstrate a higher neural efficiency during the resting state. When aiming, professional archers experience an activation of brain regions associated with archery by suppressing brain regions unrelated to archery tasks. These findings provide a novel theoretical basis for the study of EEG microstate dynamics in archery and related cognitive motor tasks, particularly from the perspective of the subject’s mental state.
Collapse
|
6
|
Ma X, Kang J, Li X, Maurer U, Cao X, Sommer W. Does learning different script systems affect configural visual processing? ERP evidence from early readers of Chinese and German. Psychophysiology 2022; 59:e14006. [PMID: 35150451 DOI: 10.1111/psyp.14006] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 12/17/2021] [Accepted: 01/02/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Xiaoli Ma
- Institut für Psychologie, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Jing Kang
- Department of Psychology, Zhejiang Normal University, Jin Hua, China
| | - Xinran Li
- Institut für Psychologie, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Urs Maurer
- Department of Psychology, The Chinese University of Hong Kong, Hong Kong, China.,Brain and Mind Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiaohua Cao
- Department of Psychology, Zhejiang Normal University, Jin Hua, China
| | - Werner Sommer
- Institut für Psychologie, Humboldt-Universität zu Berlin, Berlin, Germany.,Department of Psychology, Zhejiang Normal University, Jin Hua, China
| |
Collapse
|
7
|
Billings J, Tivadar R, Murray MM, Franceschiello B, Petri G. Topological Features of Electroencephalography are Robust to Re-referencing and Preprocessing. Brain Topogr 2022; 35:79-95. [PMID: 35001322 DOI: 10.1007/s10548-021-00882-w] [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: 10/16/2020] [Accepted: 11/05/2021] [Indexed: 11/30/2022]
Abstract
Electroencephalography (EEG) is among the most widely diffused, inexpensive, and adopted neuroimaging techniques. Nonetheless, EEG requires measurements against a reference site(s), which is typically chosen by the experimenter, and specific pre-processing steps precede analyses. It is therefore valuable to obtain quantities that are minimally affected by reference and pre-processing choices. Here, we show that the topological structure of embedding spaces, constructed either from multi-channel EEG timeseries or from their temporal structure, are subject-specific and robust to re-referencing and pre-processing pipelines. By contrast, the shape of correlation spaces, that is, discrete spaces where each point represents an electrode and the distance between them that is in turn related to the correlation between the respective timeseries, was neither significantly subject-specific nor robust to changes of reference. Our results suggest that the shape of spaces describing the observed configurations of EEG signals holds information about the individual specificity of the underlying individual's brain dynamics, and that temporal correlations constrain to a large degree the set of possible dynamics. In turn, these encode the differences between subjects' space of resting state EEG signals. Finally, our results and proposed methodology provide tools to explore the individual topographical landscapes and how they are explored dynamically. We propose therefore to augment conventional topographic analyses with an additional-topological-level of analysis, and to consider them jointly. More generally, these results provide a roadmap for the incorporation of topological analyses within EEG pipelines.
Collapse
Affiliation(s)
- Jacob Billings
- ISI Foundation, Turin, Italy
- Department of Complex Systems, Institute for Computer Science, Czech Academy of Science, Prague, Czechia
| | - Ruxandra Tivadar
- Laboratory for Investigative Neurophysiology, Department of Radiology, Lausanne University Hospital and University of Lausanne (CHUV-UNIL), Lausanne, Switzerland
- Department of Ophthalmology, Fondation Asile des aveugles and University of Lausanne, Lausanne, Switzerland
- Cognitive Computational Neuroscience Group, Institute for Computer Science, University of Bern, Bern, Switzerland
| | - Micah M Murray
- Laboratory for Investigative Neurophysiology, Department of Radiology, Lausanne University Hospital and University of Lausanne (CHUV-UNIL), Lausanne, Switzerland
- Department of Ophthalmology, Fondation Asile des aveugles and University of Lausanne, Lausanne, Switzerland
- EEG CHUV-UNIL Section, CIBM Center for Biomedical Imaging, Lausanne, Switzerland
- Department of Hearing and Speech Sciences, Vanderbilt University, Nashville, TN, USA
| | - Benedetta Franceschiello
- Laboratory for Investigative Neurophysiology, Department of Radiology, Lausanne University Hospital and University of Lausanne (CHUV-UNIL), Lausanne, Switzerland
- Department of Ophthalmology, Fondation Asile des aveugles and University of Lausanne, Lausanne, Switzerland
- EEG CHUV-UNIL Section, CIBM Center for Biomedical Imaging, Lausanne, Switzerland
| | - Giovanni Petri
- ISI Foundation, Turin, Italy.
- ISI Global Science Foundation, New York, NY, USA.
| |
Collapse
|
8
|
Al Zoubi O, Mayeli A, Misaki M, Tsuchiyagaito A, Zotev V, Refai H, Paulus M, Bodurka J. Canonical EEG microstates transitions reflect switching among BOLD resting state networks and predict fMRI signal. J Neural Eng 2022; 18:10.1088/1741-2552/ac4595. [PMID: 34937003 PMCID: PMC11008726 DOI: 10.1088/1741-2552/ac4595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 12/22/2021] [Indexed: 11/12/2022]
Abstract
Objective.Electroencephalography (EEG) microstates (MSs), which reflect a large topographical representation of coherent electrophysiological brain activity, are widely adopted to study cognitive processes mechanisms and aberrant alterations in brain disorders. MS topographies are quasi-stable lasting between 60-120 ms. Some evidence suggests that MS are the electrophysiological signature of resting-state networks (RSNs). However, the spatial and functional interpretation of MS and their association with functional magnetic resonance imaging (fMRI) remains unclear.Approach. In a cohort of healthy subjects (n= 52), we conducted several statistical and machine learning (ML) approaches analyses on the association among MS spatio-temporal dynamics and the blood-oxygenation-level dependent (BOLD) simultaneous EEG-fMRI data using statistical and ML approaches.Main results.Our results using a generalized linear model showed that MS transitions were largely and negatively associated with BOLD signals in the somatomotor, visual, dorsal attention, and ventral attention fMRI networks with limited association within the default mode network. Additionally, a novel recurrent neural network (RNN) confirmed the association between MS transitioning and fMRI signal while revealing that MS dynamics can model BOLD signals and vice versa.Significance.Results suggest that MS transitions may represent the deactivation of fMRI RSNs and provide evidence that both modalities measure common aspects of undergoing brain neuronal activities. These results may help to better understand the electrophysiological interpretation of MS.
Collapse
Affiliation(s)
- Obada Al Zoubi
- Laureate Institute for Brain Research, Tulsa, OK, United States of America
- Electrical and Computer Engineering, University of Oklahoma, Tulsa, OK, United States of America
- Harvard Medical School, Boston, United States of America
| | - Ahmad Mayeli
- Laureate Institute for Brain Research, Tulsa, OK, United States of America
- Electrical and Computer Engineering, University of Oklahoma, Tulsa, OK, United States of America
| | - Masaya Misaki
- Laureate Institute for Brain Research, Tulsa, OK, United States of America
| | - Aki Tsuchiyagaito
- Laureate Institute for Brain Research, Tulsa, OK, United States of America
| | - Vadim Zotev
- Laureate Institute for Brain Research, Tulsa, OK, United States of America
| | | | - Hazem Refai
- Electrical and Computer Engineering, University of Oklahoma, Tulsa, OK, United States of America
| | - Martin Paulus
- Laureate Institute for Brain Research, Tulsa, OK, United States of America
| | - Jerzy Bodurka
- Laureate Institute for Brain Research, Tulsa, OK, United States of America
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK, United States of America
- Deceased
| |
Collapse
|
9
|
Iannotti GR, Orepic P, Brunet D, Koenig T, Alcoba-Banqueri S, Garin DFA, Schaller K, Blanke O, Michel CM. EEG Spatiotemporal Patterns Underlying Self-other Voice Discrimination. Cereb Cortex 2021; 32:1978-1992. [PMID: 34649280 PMCID: PMC9070353 DOI: 10.1093/cercor/bhab329] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 08/02/2021] [Accepted: 08/03/2021] [Indexed: 11/24/2022] Open
Abstract
There is growing evidence showing that the representation of the human “self” recruits special systems across different functions and modalities. Compared to self-face and self-body representations, few studies have investigated neural underpinnings specific to self-voice. Moreover, self-voice stimuli in those studies were consistently presented through air and lacking bone conduction, rendering the sound of self-voice stimuli different to the self-voice heard during natural speech. Here, we combined psychophysics, voice-morphing technology, and high-density EEG in order to identify the spatiotemporal patterns underlying self-other voice discrimination (SOVD) in a population of 26 healthy participants, both with air- and bone-conducted stimuli. We identified a self-voice-specific EEG topographic map occurring around 345 ms post-stimulus and activating a network involving insula, cingulate cortex, and medial temporal lobe structures. Occurrence of this map was modulated both with SOVD task performance and bone conduction. Specifically, the better participants performed at SOVD task, the less frequently they activated this network. In addition, the same network was recruited less frequently with bone conduction, which, accordingly, increased the SOVD task performance. This work could have an important clinical impact. Indeed, it reveals neural correlates of SOVD impairments, believed to account for auditory-verbal hallucinations, a common and highly distressing psychiatric symptom.
Collapse
Affiliation(s)
- Giannina Rita Iannotti
- Functional Brain Mapping Lab, Department of Fundamental Neurosciences, University of Geneva, 1202, Switzerland.,Department of Neurosurgery, University Hospitals of Geneva and Faculty of Medicine, University of Geneva, 1205, Switzerland
| | - Pavo Orepic
- Laboratory of Cognitive Neuroscience, Center for Neuroprosthetics and Brain Mind Institute, Faculty of Life Sciences, Swiss Federal Institute of Technology (EPFL), 1202, Switzerland
| | - Denis Brunet
- Functional Brain Mapping Lab, Department of Fundamental Neurosciences, University of Geneva, 1202, Switzerland.,CIBM Center for Biomedical Imaging, Lausanne and Geneva, 1015, Switzerland
| | - Thomas Koenig
- Translational Research Center, University Hospital of Psychiatry and Psychotherapy, University of Bern, Bern 3000, Switzerland
| | - Sixto Alcoba-Banqueri
- Laboratory of Cognitive Neuroscience, Center for Neuroprosthetics and Brain Mind Institute, Faculty of Life Sciences, Swiss Federal Institute of Technology (EPFL), 1202, Switzerland
| | - Dorian F A Garin
- Department of Neurosurgery, University Hospitals of Geneva and Faculty of Medicine, University of Geneva, 1205, Switzerland
| | - Karl Schaller
- Department of Neurosurgery, University Hospitals of Geneva and Faculty of Medicine, University of Geneva, 1205, Switzerland
| | - Olaf Blanke
- Laboratory of Cognitive Neuroscience, Center for Neuroprosthetics and Brain Mind Institute, Faculty of Life Sciences, Swiss Federal Institute of Technology (EPFL), 1202, Switzerland
| | - Christoph M Michel
- Functional Brain Mapping Lab, Department of Fundamental Neurosciences, University of Geneva, 1202, Switzerland.,CIBM Center for Biomedical Imaging, Lausanne and Geneva, 1015, Switzerland
| |
Collapse
|
10
|
Cohen M, Mahé G, Zesiger P, Laganaro M. Does learning to read affect naming skills? Insights from ERPs during letter and picture naming tasks. Neuropsychologia 2021; 157:107861. [PMID: 33894244 DOI: 10.1016/j.neuropsychologia.2021.107861] [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: 10/21/2019] [Revised: 04/14/2021] [Accepted: 04/14/2021] [Indexed: 11/20/2022]
Abstract
Numerous studies report that poor readers display low performance in naming tasks. However, very few studies have investigated the development of naming skills along with the development of reading fluency and its variability in typically developing children. In this study, we used electro-encephalographic (EEG) recordings acquired during letter and picture naming tasks to investigate how naming skills develop and, possibly, interact with age and reading level variations. Ninety-three children aged 7-12 years named letters and pictures under an EEG recording, and their reading performance was assessed. ERP results on amplitudes show that age and reading level have similar effects on the entire letter naming time-course. By contrast, age and reading level have different effects on the picture naming time-course, with a specific effect of reading level on the N1 time-interval, associated with visuo-conceptual processing and an effect of both age and reading on later time-windows. On the microstate analysis, age remains the only predictor of the variance in global electric field at scalp for both letter and picture naming indicating that reading skill is not related to a modulation of the mental processes underlying naming.
Collapse
Affiliation(s)
- Marjolaine Cohen
- FPSE, University of Geneva, Geneva, Switzerland; Department of Special Needs Education, Faculty of Educational Sciences, University of Oslo, Oslo, Norway.
| | - Gwendoline Mahé
- FPSE, University of Geneva, Geneva, Switzerland; Department of Psychology, SCALab (UMR CNRS 9193), University of Lille, Lille, France
| | | | | |
Collapse
|
11
|
Perizzolo Pointet VC, Moser DA, Vital M, Rusconi Serpa S, Todorov A, Schechter DS. Violence Exposure Is Associated With Atypical Appraisal of Threat Among Women: An EEG Study. Front Psychol 2021; 11:576852. [PMID: 33510667 PMCID: PMC7835125 DOI: 10.3389/fpsyg.2020.576852] [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: 06/27/2020] [Accepted: 11/23/2020] [Indexed: 11/13/2022] Open
Abstract
Introduction The present study investigates the association of lifetime interpersonal violence (IPV) exposure, related posttraumatic stress disorder (IPV-PTSD), and appraisal of the degree of threat posed by facial avatars. Methods We recorded self-rated responses and high-density electroencephalography (HD-EEG) among women, 16 of whom with lifetime IPV-PTSD and 14 with no PTSD, during a face-evaluation task that displayed male face avatars varying in their degree of threat as rated along dimensions of dominance and trustworthiness. Results The study found a significant association between lifetime IPV exposure, under-estimation of dominance, and over-estimation of trustworthiness. Characterization of EEG microstates supported that lifetime IPV-PTSD modulates emotional appraisal, specifically in encoding and decoding processing associated with N170 and LPP evoked potentials. EEG source localization demonstrated an overactivation of the limbic system, in particular the parahippocampal gyrus, in response to non-threatening avatars. Additionally, dysfunctional involvement of attention-related processing anterior prefrontal cortex (aPFC) was found in response to relatively trustworthy avatars in IPV-PTSD individuals compared with non-PTSD controls. Discussion This study showed that IPV exposure and related PTSD modulate individuals' evaluation of facial characteristics suggesting threat. Atypical processing of these avatar characteristics was marked by group differences in brain regions linked to facial processing, emotion regulation, and memory.
Collapse
Affiliation(s)
| | - Dominik Andrea Moser
- University Service of Child and Adolescent Psychiatry, Lausanne University Medical Center, Lausanne, Switzerland.,Institute of Psychology, University of Bern, Bern, Switzerland
| | - Marylène Vital
- Department of Child and Adolescent Psychiatry, University of Geneva Hospitals, Geneva, Switzerland
| | - Sandra Rusconi Serpa
- Department of Psychology, Faculty of Psychology and Educational Science, University of Geneva, Geneva, Switzerland
| | - Alexander Todorov
- Department of Psychology, Princeton University, Princeton, NJ, United States
| | - Daniel Scott Schechter
- Department of Psychiatry, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,University Service of Child and Adolescent Psychiatry, Lausanne University Medical Center, Lausanne, Switzerland.,Department of Child and Adolescent Psychiatry, New York University Langone School of Medicine, New York, NY, United States
| |
Collapse
|
12
|
Tait L, Tamagnini F, Stothart G, Barvas E, Monaldini C, Frusciante R, Volpini M, Guttmann S, Coulthard E, Brown JT, Kazanina N, Goodfellow M. EEG microstate complexity for aiding early diagnosis of Alzheimer's disease. Sci Rep 2020; 10:17627. [PMID: 33077823 PMCID: PMC7572485 DOI: 10.1038/s41598-020-74790-7] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 10/05/2020] [Indexed: 11/25/2022] Open
Abstract
The dynamics of the resting brain exhibit transitions between a small number of discrete networks, each remaining stable for tens to hundreds of milliseconds. These functional microstates are thought to be the building blocks of spontaneous consciousness. The electroencephalogram (EEG) is a useful tool for imaging microstates, and EEG microstate analysis can potentially give insight into altered brain dynamics underpinning cognitive impairment in disorders such as Alzheimer's disease (AD). Since EEG is non-invasive and relatively inexpensive, EEG microstates have the potential to be useful clinical tools for aiding early diagnosis of AD. In this study, EEG was collected from two independent cohorts of probable AD and cognitively healthy control participants, and a cohort of mild cognitive impairment (MCI) patients with four-year clinical follow-up. The microstate associated with the frontoparietal working-memory/attention network was altered in AD due to parietal inactivation. Using a novel measure of complexity, we found microstate transitioning was slower and less complex in AD. When combined with a spectral EEG measure, microstate complexity could classify AD with sensitivity and specificity > 80%, which was tested on an independent cohort, and could predict progression from MCI to AD in a small preliminary test cohort of 11 participants. EEG microstates therefore have potential to be a non-invasive functional biomarker of AD.
Collapse
Affiliation(s)
- Luke Tait
- Living Systems Institute, University of Exeter, Exeter, UK.
- EPSRC Centre for Predictive Modelling in Healthcare, University of Exeter, Exeter, UK.
- College of Engineering, Maths, and Physical Sciences, University of Exeter, Exeter, UK.
- Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University, Maindy Road, Cardiff, CF24 4HQ, UK.
| | - Francesco Tamagnini
- School of Pharmacy, University of Reading, Reading, UK
- University of Exeter Medical School, Exeter, UK
| | | | - Edoardo Barvas
- San Marino Neurological Unit, San Marino Hospital, San Marino, Republic of San Marino
| | - Chiara Monaldini
- San Marino Neurological Unit, San Marino Hospital, San Marino, Republic of San Marino
| | - Roberto Frusciante
- San Marino Neurological Unit, San Marino Hospital, San Marino, Republic of San Marino
| | - Mirco Volpini
- San Marino Neurological Unit, San Marino Hospital, San Marino, Republic of San Marino
| | - Susanna Guttmann
- San Marino Neurological Unit, San Marino Hospital, San Marino, Republic of San Marino
| | | | - Jon T Brown
- University of Exeter Medical School, Exeter, UK
| | - Nina Kazanina
- School of Psychological Science, University of Bristol, Bristol, UK
| | - Marc Goodfellow
- Living Systems Institute, University of Exeter, Exeter, UK
- EPSRC Centre for Predictive Modelling in Healthcare, University of Exeter, Exeter, UK
- College of Engineering, Maths, and Physical Sciences, University of Exeter, Exeter, UK
- Centre for Biomedical Modelling and Analysis, University of Exeter, Exeter, UK
| |
Collapse
|
13
|
The N200 enhancement effect in reading Chinese is modulated by actual writing. Neuropsychologia 2020; 142:107462. [DOI: 10.1016/j.neuropsychologia.2020.107462] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 03/01/2020] [Accepted: 04/01/2020] [Indexed: 01/23/2023]
|
14
|
Cai X, Yin Y, Zhang Q. The roles of syllables and phonemes during phonological encoding in Chinese spoken word production: A topographic ERP study. Neuropsychologia 2020; 140:107382. [DOI: 10.1016/j.neuropsychologia.2020.107382] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 12/10/2019] [Accepted: 02/09/2020] [Indexed: 10/25/2022]
|
15
|
XIN X, LAN T, ZHANG Q. Assimilation mechanisms of phonological encoding in second language spoken production for English-Chinese bilinguals. ACTA PSYCHOLOGICA SINICA 2020. [DOI: 10.3724/sp.j.1041.2020.01377] [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]
|
16
|
Bakos S, Mehlhase H, Landerl K, Bartling J, Schulte-Körne G, Moll K. Naming processes in reading and spelling disorders: An electrophysiological investigation. Clin Neurophysiol 2019; 131:351-360. [PMID: 31865136 DOI: 10.1016/j.clinph.2019.11.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 10/21/2019] [Accepted: 11/13/2019] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Reading fluency deficits characteristic for reading disorders (RD; F81.0) have been shown to be strongly associated with slow naming speed (e.g. in rapid automatized naming tasks). In contrast, children with an isolated spelling disorder in the context of unimpaired reading skills (iSD; F81.1) show naming speed task performances that are similar to typically developing (TD) children. However, the exact nature of the naming speed deficit and its relation to RD and the question whether children with iSD are also on the neurophysiological level similar to TD children is still unresolved. METHODS The time-course and scalp topography of event-related potentials (ERP) activity recorded during a delayed digit-naming task was investigated in ten-year-old children with RD and iSD compared to a TD group. RESULTS ERP activity differed between the RD and the TD group at around 300 ms after stimulus presentation (left occipito-temporal P2). In contrast, there were no neurophysiological differences between the TD and the iSD group. The P2 component correlated with behavioural performance on the RAN task. CONCLUSIONS Slow naming speed in RD might result from a slowed-down access and prolonged processing of the word (lexical) form. SIGNIFICANCE The study establishes a relation between neurophysiological processes of naming tasks and RD.
Collapse
Affiliation(s)
- Sarolta Bakos
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital Munich, Pettenkoferstr. 8a, 80336 Munich, Germany.
| | - Heike Mehlhase
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital Munich, Pettenkoferstr. 8a, 80336 Munich, Germany
| | - Karin Landerl
- Institute of Psychology, University of Graz, Universitätsplatz 2/DG, 8010 Graz, Austria; Institute of Cognitive Science, Macquarie University Sydney, NSW, Australia
| | - Jürgen Bartling
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital Munich, Pettenkoferstr. 8a, 80336 Munich, Germany
| | - Gerd Schulte-Körne
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital Munich, Pettenkoferstr. 8a, 80336 Munich, Germany
| | - Kristina Moll
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital Munich, Pettenkoferstr. 8a, 80336 Munich, Germany
| |
Collapse
|
17
|
Acute administration of nicotine does not enhance cognitive functions. Arh Hig Rada Toksikol 2019; 70:273-282. [PMID: 32623864 DOI: 10.2478/aiht-2019-70-3257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Accepted: 11/01/2019] [Indexed: 11/20/2022] Open
Abstract
Chronic smokers often claim that smoking improves their cognitive abilities, such as concentration. However, scientific evidence to support this claim is scarce. Previous studies gave inconclusive results, and some of them had significant methodological flaws. Therefore, the aim of this study was to test whether smoking a single cigarette affects performance across several cognitive domains. It included a group of 22 occasional smokers aged 19-29 years. Attention, working memory, and visuospatial reasoning were assessed using a within-subjects design with a control setting. There were two separate testing sessions two days apart. Half the group started with experimental and the other half with control setting. In the experimental setting, the participants completed the first block of tasks, smoked one cigarette (with a nicotine yield of 0.5 mg), and then completed the second block of tasks. In the control setting, the procedure was the same, except that the participants had a glass of water instead of a cigarette. Repeated measures ANOVA showed no significant effects of cigarette smoking on either reaction time rates or accuracy on any of the three cognitive domains. These results suggest that, at least among young, occasional smokers, smoking does not affect cognition and the claims of its improvement are probably a result of some sort of cognitive bias.
Collapse
|
18
|
Fargier R, Laganaro M. Neural dynamics of the production of newly acquired words relative to well-known words. Brain Res 2019; 1727:146557. [PMID: 31738889 DOI: 10.1016/j.brainres.2019.146557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 11/06/2019] [Accepted: 11/13/2019] [Indexed: 10/25/2022]
Abstract
An adult continues acquiring new lexical entries in everyday life. Brain networks and processes at play when producing newly learnt words might be similar to well-known words, yet some processes are bound to be slower. Here, we compared the neural dynamics of producing newly acquired words with those of well-known frequent words, both qualitatively and quantitatively, using event-related potentials (ERPs) associated to high-density microstate analyses. ERPs revealed several temporal windows with differences in waveform amplitudes, which correspond to enhanced duration of similar microstates for newly acquired words compared to well-known words. The time-periods of these ERP modulations converged to suggest that both lexical processes and word form encoding are slowed down for words that have been learned recently, but that the same brain processes are implemented as for well-known words.
Collapse
Affiliation(s)
| | - Marina Laganaro
- Faculty of Psychology and Educational Sciences, University of Geneva, Switzerland
| |
Collapse
|
19
|
Large-Scale Networks for Auditory Sensory Gating in the Awake Mouse. eNeuro 2019; 6:ENEURO.0207-19.2019. [PMID: 31444224 PMCID: PMC6734044 DOI: 10.1523/eneuro.0207-19.2019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 06/28/2019] [Accepted: 07/01/2019] [Indexed: 12/03/2022] Open
Abstract
The amplitude of the brain response to a repeated auditory stimulus is diminished as compared to the response to the first tone (T1) for interstimulus intervals (ISI) lasting up to hundreds of milliseconds. This adaptation process, called auditory sensory gating (ASG), is altered in various psychiatric diseases including schizophrenia and is classically studied by focusing on early evoked cortical responses to the second tone (T2) using 500-ms ISI. However, mechanisms underlying ASG are still not well-understood. We investigated ASG in awake mice from the brainstem to cortex at variable ISIs (125–2000 ms) using high-density EEG and intracerebral recordings. While ASG decreases at longer ISIs, it is still present at durations (500–2000 ms) far beyond the time during which brain responses to T1 could still be detected. T1 induces a sequence of specific stable scalp EEG topographies that correspond to the successive activation of distinct neural networks lasting about 350 ms. These brain states remain unaltered if T2 is presented during this period, although T2 is processed by the brain, suggesting that ongoing networks of brain activity are active for longer than early evoked-potentials and are not overwritten by an upcoming new stimulus. Intracerebral recordings demonstrate that ASG is already present at the level of ventral cochlear nucleus (vCN) and inferior colliculus and is amplified across the hierarchy in bottom-up direction. This study uncovers the extended stability of sensory-evoked brain states and long duration of ASG, and sheds light on generators of ASG and possible interactions between bottom-up and top-down mechanisms.
Collapse
|
20
|
Michel CM, Brunet D. EEG Source Imaging: A Practical Review of the Analysis Steps. Front Neurol 2019; 10:325. [PMID: 31019487 PMCID: PMC6458265 DOI: 10.3389/fneur.2019.00325] [Citation(s) in RCA: 282] [Impact Index Per Article: 56.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Accepted: 03/15/2019] [Indexed: 11/13/2022] Open
Abstract
The electroencephalogram (EEG) is one of the oldest technologies to measure neuronal activity of the human brain. It has its undisputed value in clinical diagnosis, particularly (but not exclusively) in the identification of epilepsy and sleep disorders and in the evaluation of dysfunctions in sensory transmission pathways. With the advancement of digital technologies, the analysis of EEG has moved from pure visual inspection of amplitude and frequency modulations over time to a comprehensive exploration of the temporal and spatial characteristics of the recorded signals. Today, EEG is accepted as a powerful tool to capture brain function with the unique advantage of measuring neuronal processes in the time frame in which these processes occur, namely in the sub-second range. However, it is generally stated that EEG suffers from a poor spatial resolution that makes it difficult to infer to the location of the brain areas generating the neuronal activity measured on the scalp. This statement has challenged a whole community of biomedical engineers to offer solutions to localize more precisely and more reliably the generators of the EEG activity. High-density EEG systems combined with precise information of the head anatomy and sophisticated source localization algorithms now exist that convert the EEG to a true neuroimaging modality. With these tools in hand and with the fact that EEG still remains versatile, inexpensive and portable, electrical neuroimaging has become a widely used technology to study the functions of the pathological and healthy human brain. However, several steps are needed to pass from the recording of the EEG to 3-dimensional images of neuronal activity. This review explains these different steps and illustrates them in a comprehensive analysis pipeline integrated in a stand-alone freely available academic software: Cartool. The information about how the different steps are performed in Cartool is only meant as a suggestion. Other EEG source imaging software may apply similar or different approaches to the different steps.
Collapse
Affiliation(s)
- Christoph M. Michel
- Department of Basic Neurosciences, University of Geneva, Geneva, Switzerland
- Center for Biomedical Imaging Lausanne-Geneva (CIBM), Geneva, Switzerland
| | - Denis Brunet
- Department of Basic Neurosciences, University of Geneva, Geneva, Switzerland
- Center for Biomedical Imaging Lausanne-Geneva (CIBM), Geneva, Switzerland
| |
Collapse
|
21
|
Abstract
Even when speakers are not actively doing another task, they can be interfered in their speech planning by concurrent auditory stimuli. In this study, we used picture naming with passive hearing, or active listening, combined to high-density electroencephalographic (EEG) recordings to investigate the locus and origin of interference on speech production. Participants named pictures while ignoring (or paying attention to) auditory syllables presented at different intervals (+150 ms, +300 ms or +450 ms). Interference of passive hearing was observed at all positive stimulus onset asynchronies (SOA) including when distractors appeared 450 ms after picture onset. Analyses of ERPs and microstates revealed modulations appearing in a time-window close to verbal response onset likely relating to post-lexical planning processes. A shift of latency of the N1 auditory component for syllables displayed 450 ms after picture onset relative to hearing in isolation was also observed. Data from picture naming with active listening to auditory syllables also pointed to post-lexical interference. The present study suggests that, beyond the lexical stage, post-lexical processes can be interfered and that the reciprocal interference between utterance planning and hearing relies on attentional demand and possibly competing neural substrates.
Collapse
|
22
|
Witt ST, Drissi NM, Tapper S, Wretman A, Szakács A, Hallböök T, Landtblom AM, Karlsson T, Lundberg P, Engström M. Evidence for cognitive resource imbalance in adolescents with narcolepsy. Brain Imaging Behav 2019; 12:411-424. [PMID: 28321606 PMCID: PMC5880867 DOI: 10.1007/s11682-017-9706-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/29/2022]
Abstract
The study investigated brain activity changes during performance of a verbal working memory task in a population of adolescents with narcolepsy. Seventeen narcolepsy patients and twenty healthy controls performed a verbal working memory task during simultaneous fMRI and EEG acquisition. All subjects also underwent MRS to measure GABA and Glutamate concentrations in the medial prefrontal cortex. Activation levels in the default mode network and left middle frontal gyrus were examined to investigate whether narcolepsy is characterized by an imbalance in cognitive resources. Significantly increased deactivation within the default mode network during task performance was observed for the narcolepsy patients for both the encoding and recognition phases of the task. No evidence for task performance deficits or reduced activation within the left middle frontal gyrus was noted for the narcolepsy patients. Correlation analyses between the spectroscopy and fMRI data indicated that deactivation of the anterior aspect of the default mode in narcolepsy patients correlated more with increased concentrations of Glutamate and decreased concentrations of GABA. In contrast, deactivation in the default mode was correlated with increased concentrations of GABA and decreased concentrations of Glutamate in controls. The results suggested that narcolepsy is not characterized by a deficit in working memory but rather an imbalance of cognitive resources in favor of monitoring and maintaining attention over actual task performance. This points towards dysregulation within the sustained attention system being the origin behind self-reported cognitive difficulties in narcolepsy.
Collapse
Affiliation(s)
- Suzanne T Witt
- Center for Medical Image Science and Visualization (CMIV), Linköping University, Linköpings universitet/US, SE-581 85, Linköping, SE, Sweden.
| | - Natasha Morales Drissi
- Center for Medical Image Science and Visualization (CMIV), Linköping University, Linköpings universitet/US, SE-581 85, Linköping, SE, Sweden.,Department of Medical and Health Sciences (IMH), Linköping University, Linköping, Sweden
| | - Sofie Tapper
- Center for Medical Image Science and Visualization (CMIV), Linköping University, Linköpings universitet/US, SE-581 85, Linköping, SE, Sweden.,Radiation Physics, Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
| | - Anna Wretman
- Linnaeus Center HEAD, Linköping University, Linköping, Sweden
| | - Attila Szakács
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Tove Hallböök
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anne-Marie Landtblom
- Center for Medical Image Science and Visualization (CMIV), Linköping University, Linköpings universitet/US, SE-581 85, Linköping, SE, Sweden.,Department of Neurology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.,Department of Neuroscience and Neurology, Uppsala University, Uppsala, Sweden
| | - Thomas Karlsson
- Center for Medical Image Science and Visualization (CMIV), Linköping University, Linköpings universitet/US, SE-581 85, Linköping, SE, Sweden.,Linnaeus Center HEAD, Linköping University, Linköping, Sweden.,Department of Behavioral Sciences and Learning, Linköping University, Linköping, Sweden
| | - Peter Lundberg
- Center for Medical Image Science and Visualization (CMIV), Linköping University, Linköpings universitet/US, SE-581 85, Linköping, SE, Sweden.,Radiation Physics, Department of Medical and Health Sciences, Linköping University, Linköping, Sweden.,Radiology, Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
| | - Maria Engström
- Center for Medical Image Science and Visualization (CMIV), Linköping University, Linköpings universitet/US, SE-581 85, Linköping, SE, Sweden.,Department of Medical and Health Sciences (IMH), Linköping University, Linköping, Sweden
| |
Collapse
|
23
|
Zhang Y, Wang C, Wang Y, Yan F, Wang Q, Huang L. Investigating dynamic functional network patterns after propofol-induced loss of consciousness. Clin Neurophysiol 2019; 130:331-340. [DOI: 10.1016/j.clinph.2018.11.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 10/10/2018] [Accepted: 11/25/2018] [Indexed: 11/28/2022]
|
24
|
Al Zoubi O, Mayeli A, Tsuchiyagaito A, Misaki M, Zotev V, Refai H, Paulus M, Bodurka J. EEG Microstates Temporal Dynamics Differentiate Individuals with Mood and Anxiety Disorders From Healthy Subjects. Front Hum Neurosci 2019; 13:56. [PMID: 30863294 PMCID: PMC6399140 DOI: 10.3389/fnhum.2019.00056] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 01/31/2019] [Indexed: 01/15/2023] Open
Abstract
Electroencephalography (EEG) measures the brain’s electrophysiological spatio-temporal activities with high temporal resolution. Multichannel and broadband analysis of EEG signals is referred to as EEG microstates (EEG-ms) and can characterize such dynamic neuronal activity. EEG-ms have gained much attention due to the increasing evidence of their association with mental activities and large-scale brain networks identified by functional magnetic resonance imaging (fMRI). Spatially independent EEG-ms are quasi-stationary topographies (e.g., stable, lasting a few dozen milliseconds) typically classified into four canonical classes (microstates A through D). They can be identified by clustering EEG signals around EEG global field power (GFP) maxima points. We examined the EEG-ms properties and the dynamics of cohorts of mood and anxiety (MA) disorders subjects (n = 61) and healthy controls (HCs; n = 52). In both groups, we found four distinct classes of EEG-ms (A through D), which did not differ among cohorts. This suggests a lack of significant structural cortical abnormalities among cohorts, which would otherwise affect the EEG-ms topographies. However, both cohorts’ brain network dynamics significantly varied, as reflected in EEG-ms properties. Compared to HC, the MA cohort features a lower transition probability between EEG-ms B and D and higher transition probability from A to D and from B to C, with a trend towards significance in the average duration of microstate C. Furthermore, we harnessed a recently introduced theoretical approach to analyze the temporal dependencies in EEG-ms. The results revealed that the transition matrices of MA group exhibit higher symmetrical and stationarity properties as compared to HC ones. In addition, we found an elevation in the temporal dependencies among microstates, especially in microstate B for the MA group. The determined alteration in EEG-ms temporal dependencies among the cohorts suggests that brain abnormalities in mood and anxiety disorders reflect aberrant neural dynamics and a temporal dwelling among ceratin brain states (i.e., mood and anxiety disorders subjects have a less dynamicity in switching between different brain states).
Collapse
Affiliation(s)
- Obada Al Zoubi
- Laureate Institute for Brain Research, Tulsa, OK, United States.,Department of Electrical and Computer Engineering, University of Oklahoma, Tulsa, OK, United States
| | - Ahmad Mayeli
- Laureate Institute for Brain Research, Tulsa, OK, United States.,Department of Electrical and Computer Engineering, University of Oklahoma, Tulsa, OK, United States
| | - Aki Tsuchiyagaito
- Laureate Institute for Brain Research, Tulsa, OK, United States.,Japan Society for the Promotion Science, Tokyo, Japan.,Research Center for Child Development, Chiba University, Chiba, Japan
| | - Masaya Misaki
- Laureate Institute for Brain Research, Tulsa, OK, United States
| | - Vadim Zotev
- Laureate Institute for Brain Research, Tulsa, OK, United States
| | - Hazem Refai
- Department of Electrical and Computer Engineering, University of Oklahoma, Tulsa, OK, United States
| | - Martin Paulus
- Laureate Institute for Brain Research, Tulsa, OK, United States
| | - Jerzy Bodurka
- Laureate Institute for Brain Research, Tulsa, OK, United States.,Oxley College of Health Sciences, University of Tulsa, Tulsa, OK, United States
| | | |
Collapse
|
25
|
Perizzolo VC, Berchio C, Moser DA, Gomez CP, Vital M, Arnautovic E, Torrisi R, Serpa SR, Michel CM, Schechter DS. EEG recording during an emotional face-matching task in children of mothers with interpersonal violence-related posttraumatic stress disorder. Psychiatry Res Neuroimaging 2019; 283:34-44. [PMID: 30530040 DOI: 10.1016/j.pscychresns.2018.11.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 11/27/2018] [Accepted: 11/28/2018] [Indexed: 01/11/2023]
Abstract
The aim of this study was to examine the effects of maternal interpersonal violence-related posttraumatic disorder (IPV-PTSD) on child appraisal of emotion, as measured by high-density electroencephalography (HD-EEG) during an Emotional Face-matching Task (EFMT). We recorded HD-EEG in 47 children of mothers with and without IPV-PTSD during an Emotional Face-matching Task (EFMT). Mothers and children each performed the EFMT. Behavioral results demonstrated that both mothers who were directly exposed to violent events, and their children, presented attentional bias toward negative emotions when processing facial stimuli. EEG findings confirmed differences in emotion appraisal between children of IPV-PTSD mothers and non-PTSD controls at scalp-level and in terms of source localization upon which children of IPV-PTSD mothers demonstrated decreased activation of the right dorsolateral prefrontal cortex (dlPFC) in response to angry and fearful faces as compared to non-PTSD children with respect to the N170 component. Our study, to our knowledge, is the first to show that maternal IPV-PTSD significantly affects a mother's own and her child's neural activity in response to facial expressions of negative emotion. These findings are potentially important to the development and study of effective interventions to interrupt intergenerational cycles of violence and trauma.
Collapse
Affiliation(s)
- Virginie C Perizzolo
- Department of Psychiatry, Faculty of Medicine, University of Geneva, Chemin des Mines 9, 1202 Geneva, Switzerland.
| | - Cristina Berchio
- Department of Basic Neurosciences, University of Geneva, Geneva, Switzerland
| | - Dominik A Moser
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Cristina Puro Gomez
- Child & Adolescent Psychiatry Service, University of Geneva Hospitals, Geneva, Switzerland
| | - Marylène Vital
- Department of Psychiatry, Faculty of Medicine, University of Geneva, Chemin des Mines 9, 1202 Geneva, Switzerland; Child & Adolescent Psychiatry Service, University of Geneva Hospitals, Geneva, Switzerland
| | - Emina Arnautovic
- Child & Adolescent Psychiatry Service, University of Geneva Hospitals, Geneva, Switzerland
| | - Raffaella Torrisi
- Child & Adolescent Psychiatry Service, University of Geneva Hospitals, Geneva, Switzerland
| | - Sandra Rusconi Serpa
- Child & Adolescent Psychiatry Service, University of Geneva Hospitals, Geneva, Switzerland; Faculty of Psychology and Education Sciences, University of Geneva, Switzerland
| | - Christoph M Michel
- Department of Basic Neurosciences, University of Geneva, Geneva, Switzerland; Biomedical Imaging Center (CIBM), Lausanne, Geneva, Switzerland
| | - Daniel S Schechter
- Department of Psychiatry, Faculty of Medicine, University of Geneva, Chemin des Mines 9, 1202 Geneva, Switzerland; Department of Child & Adolescent Psychiatry, New York University School of Medicine, New York, USA
| |
Collapse
|
26
|
Mahé G, Pont C, Zesiger P, Laganaro M. The electrophysiological correlates of developmental dyslexia: New insights from lexical decision and reading aloud in adults. Neuropsychologia 2018; 121:19-27. [DOI: 10.1016/j.neuropsychologia.2018.10.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 07/25/2018] [Accepted: 10/28/2018] [Indexed: 11/30/2022]
|
27
|
Batabyal T, Muthukrishnan S, Sharma R, Tayade P, Kaur S. Neural substrates of emotional interference: A quantitative EEG study. Neurosci Lett 2018; 685:1-6. [DOI: 10.1016/j.neulet.2018.07.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 07/11/2018] [Accepted: 07/11/2018] [Indexed: 01/19/2023]
|
28
|
Biria M, Tomescu MI, Custo A, Cantonas LM, Song KW, Schneider M, Murray MM, Eliez S, Michel CM, Rihs TA. Visual processing deficits in 22q11.2 Deletion Syndrome. NEUROIMAGE-CLINICAL 2017. [PMID: 29527499 PMCID: PMC5842759 DOI: 10.1016/j.nicl.2017.12.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Carriers of the rare 22q11.2 microdeletion present with a high percentage of positive and negative symptoms and a high genetic risk for schizophrenia. Visual processing impairments have been characterized in schizophrenia, but less so in 22q11.2 Deletion Syndrome (DS). Here, we focus on visual processing using high-density EEG and source imaging in 22q11.2DS participants (N = 25) and healthy controls (N = 26) with an illusory contour discrimination task. Significant differences between groups emerged at early and late stages of visual processing. In 22q11.2DS, we first observed reduced amplitudes over occipital channels and reduced source activations within dorsal and ventral visual stream areas during the P1 (100–125 ms) and within ventral visual cortex during the N1 (150–170 ms) visual evoked components. During a later window implicated in visual completion (240–285 ms), we observed an increase in global amplitudes in 22q11.2DS. The increased surface amplitudes for illusory contours at this window were inversely correlated with positive subscales of prodromal symptoms in 22q11.2DS. The reduced activity of ventral and dorsal visual areas during early stages points to an impairment in visual processing seen both in schizophrenia and 22q11.2DS. During intervals related to perceptual closure, the inverse correlation of high amplitudes with positive symptoms suggests that participants with 22q11.2DS who show an increased brain response to illusory contours during the relevant window for contour processing have less psychotic symptoms and might thus be at a reduced prodromal risk for schizophrenia. In schizophrenia, early visual processing is altered. 22q11.2DS carriers have an increased risk for schizophrenia. Hd-EEG to investigate visual processing in an illusory contour task in 22q11.2DS. Occipital cortex activity is reduced in 22q11.2DS early in time. Both in 22q11.2DS and schizophrenia, early visual processing is impaired at P1.
Collapse
Affiliation(s)
- Marjan Biria
- Functional Brain Mapping Laboratory, Department of Fundamental Neuroscience, University Medical School, University of Geneva, Geneva, Switzerland
| | - Miralena I Tomescu
- Functional Brain Mapping Laboratory, Department of Fundamental Neuroscience, University Medical School, University of Geneva, Geneva, Switzerland
| | - Anna Custo
- Functional Brain Mapping Laboratory, Department of Fundamental Neuroscience, University Medical School, University of Geneva, Geneva, Switzerland; EEG Brain Mapping Core, Center for Biomedical Imaging (CIBM) of Lausanne and Geneva, Lausanne, Switzerland
| | - Lucia M Cantonas
- Functional Brain Mapping Laboratory, Department of Fundamental Neuroscience, University Medical School, University of Geneva, Geneva, Switzerland
| | - Kun-Wei Song
- Functional Brain Mapping Laboratory, Department of Fundamental Neuroscience, University Medical School, University of Geneva, Geneva, Switzerland
| | - Maude Schneider
- Developmental Imaging and Psychopathology Laboratory, Department of Psychiatry, University of Geneva, Geneva, Switzerland
| | - Micah M Murray
- The Laboratory for Investigative Neurophysiology (The LINE), Neuropsychology and Neurorehabilitation Service and Department of Radiology, University Hospital Center and University of Lausanne, Lausanne, Switzerland; EEG Brain Mapping Core, Center for Biomedical Imaging (CIBM) of Lausanne and Geneva, Lausanne, Switzerland; Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Ophthalmology, University of Lausanne, Fondation Asile des Aveugles, Lausanne, Switzerland
| | - Stephan Eliez
- Developmental Imaging and Psychopathology Laboratory, Department of Psychiatry, University of Geneva, Geneva, Switzerland
| | - Christoph M Michel
- Functional Brain Mapping Laboratory, Department of Fundamental Neuroscience, University Medical School, University of Geneva, Geneva, Switzerland; EEG Brain Mapping Core, Center for Biomedical Imaging (CIBM) of Lausanne and Geneva, Lausanne, Switzerland
| | - Tonia A Rihs
- Functional Brain Mapping Laboratory, Department of Fundamental Neuroscience, University Medical School, University of Geneva, Geneva, Switzerland.
| |
Collapse
|
29
|
Berchio C, Piguet C, Gentsch K, Küng AL, Rihs TA, Hasler R, Aubry JM, Dayer A, Michel CM, Perroud N. Face and gaze perception in borderline personality disorder: An electrical neuroimaging study. Psychiatry Res Neuroimaging 2017; 269:62-72. [PMID: 28941875 DOI: 10.1016/j.pscychresns.2017.08.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 08/18/2017] [Accepted: 08/25/2017] [Indexed: 11/24/2022]
Abstract
Humans are sensitive to gaze direction from early life, and gaze has social and affective values. Borderline personality disorder (BPD) is a clinical condition characterized by emotional dysregulation and enhanced sensitivity to affective and social cues. In this study we wanted to investigate the temporal-spatial dynamics of spontaneous gaze processing in BPD. We used a 2-back-working-memory task, in which neutral faces with direct and averted gaze were presented. Gaze was used as an emotional modulator of event-related-potentials to faces. High density EEG data were acquired in 19 females with BPD and 19 healthy women, and analyzed with a spatio-temporal microstates analysis approach. Independently of gaze direction, BPD patients showed altered N170 and P200 topographies for neutral faces. Source localization revealed that the anterior cingulate and other prefrontal regions were abnormally activated during the N170 component related to face encoding, while middle temporal deactivations were observed during the P200 component. Post-task affective ratings showed that BPD patients had difficulty to disambiguate neutral gaze. This study provides first evidence for an early neural bias toward neutral faces in BPD independent of gaze direction and also suggests the importance of considering basic aspects of social cognition in identifying biological risk factors of BPD.
Collapse
Affiliation(s)
- Cristina Berchio
- Department of Basic Neurosciences, University of Geneva, Geneva, Switzerland.
| | - Camille Piguet
- Department of Basic Neurosciences, University of Geneva, Geneva, Switzerland; Department of Mental Health and Psychiatry, Service of Psychiatric Specialties, Mood Disorders Unit, University Hospitals of Geneva, Switzerland
| | - Kornelia Gentsch
- Department of Mental Health and Psychiatry, Service of Psychiatric Specialties, Mood Disorders Unit, University Hospitals of Geneva, Switzerland; Department of Psychiatry, University of Geneva, Geneva, Switzerland
| | - Anne-Lise Küng
- Department of Mental Health and Psychiatry, Service of Psychiatric Specialties, Mood Disorders Unit, University Hospitals of Geneva, Switzerland; Department of Psychiatry, University of Geneva, Geneva, Switzerland
| | - Tonia A Rihs
- Department of Basic Neurosciences, University of Geneva, Geneva, Switzerland
| | - Roland Hasler
- Department of Mental Health and Psychiatry, Service of Psychiatric Specialties, Mood Disorders Unit, University Hospitals of Geneva, Switzerland; Department of Psychiatry, University of Geneva, Geneva, Switzerland
| | - Jean-Michel Aubry
- Department of Mental Health and Psychiatry, Service of Psychiatric Specialties, Mood Disorders Unit, University Hospitals of Geneva, Switzerland; Department of Psychiatry, University of Geneva, Geneva, Switzerland
| | - Alexandre Dayer
- Department of Basic Neurosciences, University of Geneva, Geneva, Switzerland; Department of Mental Health and Psychiatry, Service of Psychiatric Specialties, Mood Disorders Unit, University Hospitals of Geneva, Switzerland; Department of Psychiatry, University of Geneva, Geneva, Switzerland
| | - Christoph M Michel
- Department of Basic Neurosciences, University of Geneva, Geneva, Switzerland; Biomedical Imaging Center (CIBM) Lausanne, Geneva, Switzerland
| | - Nader Perroud
- Department of Mental Health and Psychiatry, Service of Psychiatric Specialties, Mood Disorders Unit, University Hospitals of Geneva, Switzerland; Department of Psychiatry, University of Geneva, Geneva, Switzerland
| |
Collapse
|
30
|
Inter-study and inter-Individual Consistency and Variability of EEG/ERP Microstate Sequences in Referential Word Production. Brain Topogr 2017; 30:785-796. [DOI: 10.1007/s10548-017-0580-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 07/21/2017] [Indexed: 10/19/2022]
|
31
|
Prognostic Value of EEG Microstates in Acute Stroke. Brain Topogr 2017; 30:698-710. [DOI: 10.1007/s10548-017-0572-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 05/17/2017] [Indexed: 01/24/2023]
|
32
|
Lateralization of language function in epilepsy patients: A high-density scalp-derived event-related potentials (ERP) study. Clin Neurophysiol 2017; 128:472-479. [DOI: 10.1016/j.clinph.2016.12.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 12/01/2016] [Accepted: 12/21/2016] [Indexed: 11/20/2022]
|
33
|
Neurophysiological Modulations of Non-Verbal and Verbal Dual-Tasks Interference during Word Planning. PLoS One 2016; 11:e0168358. [PMID: 27992586 PMCID: PMC5167377 DOI: 10.1371/journal.pone.0168358] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 11/30/2016] [Indexed: 11/19/2022] Open
Abstract
Running a concurrent task while speaking clearly interferes with speech planning, but whether verbal vs. non-verbal tasks interfere with the same processes is virtually unknown. We investigated the neural dynamics of dual-task interference on word production using event-related potentials (ERPs) with either tones or syllables as concurrent stimuli. Participants produced words from pictures in three conditions: without distractors, while passively listening to distractors and during a distractor detection task. Production latencies increased for tasks with higher attentional demand and were longer for syllables relative to tones. ERP analyses revealed common modulations by dual-task for verbal and non-verbal stimuli around 240 ms, likely corresponding to lexical selection. Modulations starting around 350 ms prior to vocal onset were only observed when verbal stimuli were involved. These later modulations, likely reflecting interference with phonological-phonetic encoding, were observed only when overlap between tasks was maximal and the same underlying neural circuits were engaged (cross-talk).
Collapse
|
34
|
Wasilczuk AZ, Proekt A, Kelz MB, McKinstry-Wu AR. High-density Electroencephalographic Acquisition in a Rodent Model Using Low-cost and Open-source Resources. J Vis Exp 2016. [PMID: 27929470 PMCID: PMC5226321 DOI: 10.3791/54908] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Advanced electroencephalographic analysis techniques requiring high spatial resolution, including electrical source imaging and measures of network connectivity, are applicable to an expanding variety of questions in neuroscience. Performing these kinds of analyses in a rodent model requires higher electrode density than traditional screw electrodes can accomplish. While higher-density electroencephalographic montages for rodents exist, they are of limited availability to most researchers, are not robust enough for repeated experiments over an extended period of time, or are limited to use in anesthetized rodents.1-3 A proposed low-cost method for constructing a durable, high-count, transcranial electrode array, consisting of bilaterally implantable headpieces is investigated as a means to perform advanced electroencephalogram analyses in mice or rats. Procedures for headpiece fabrication and surgical implantation necessary to produce high signal to noise, low-impedance electroencephalographic and electromyographic signals are presented. While the methodology is useful in both rats and mice, this manuscript focuses on the more challenging implementation for the smaller mouse skull. Freely moving mice are only tethered to cables via a common adapter during recording. One version of this electrode system that includes 26 electroencephalographic channels and 4 electromyographic channels is described below.
Collapse
Affiliation(s)
- Andrzej Z Wasilczuk
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania
| | - Alexander Proekt
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania
| | - Max B Kelz
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania;
| | - Andrew R McKinstry-Wu
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania
| |
Collapse
|
35
|
Burra N, Kerzel D, George N. Early Left Parietal Activity Elicited by Direct Gaze: A High-Density EEG Study. PLoS One 2016; 11:e0166430. [PMID: 27880776 PMCID: PMC5120811 DOI: 10.1371/journal.pone.0166430] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 10/30/2016] [Indexed: 11/18/2022] Open
Abstract
Gaze is one of the most important cues for human communication and social interaction. In particular, gaze contact is the most primary form of social contact and it is thought to capture attention. A very early-differentiated brain response to direct versus averted gaze has been hypothesized. Here, we used high-density electroencephalography to test this hypothesis. Topographical analysis allowed us to uncover a very early topographic modulation (40-80 ms) of event-related responses to faces with direct as compared to averted gaze. This modulation was obtained only in the condition where intact broadband faces-as opposed to high-pass or low-pas filtered faces-were presented. Source estimation indicated that this early modulation involved the posterior parietal region, encompassing the left precuneus and inferior parietal lobule. This supports the idea that it reflected an early orienting response to direct versus averted gaze. Accordingly, in a follow-up behavioural experiment, we found faster response times to the direct gaze than to the averted gaze broadband faces. In addition, classical evoked potential analysis showed that the N170 peak amplitude was larger for averted gaze than for direct gaze. Taken together, these results suggest that direct gaze may be detected at a very early processing stage, involving a parallel route to the ventral occipito-temporal route of face perceptual analysis.
Collapse
Affiliation(s)
- Nicolas Burra
- Institut du Cerveau et de la Moelle Epinière, ICM, Social and Affective Neuroscience (SAN) Laboratory and Centre MEG-EEG, Paris, France
- Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1127 and Centre MEG-EEG, Paris, France
- CNRS, UMR 7225 and Centre MEG-EEG, Paris, France
- Inserm, U 1127 and Centre MEG-EEG, Paris, France
- Faculté de Psychologie et des Sciences de l’Education, Université de Genève, Geneva, Switzerland
- * E-mail: (NB)
| | - Dirk Kerzel
- Faculté de Psychologie et des Sciences de l’Education, Université de Genève, Geneva, Switzerland
| | - Nathalie George
- Institut du Cerveau et de la Moelle Epinière, ICM, Social and Affective Neuroscience (SAN) Laboratory and Centre MEG-EEG, Paris, France
- Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1127 and Centre MEG-EEG, Paris, France
- CNRS, UMR 7225 and Centre MEG-EEG, Paris, France
- Inserm, U 1127 and Centre MEG-EEG, Paris, France
- ENS, Centre MEG-EEG, Paris, France
| |
Collapse
|
36
|
Boeijinga PH. Multimodal EEG Recordings, Psychometrics and Behavioural Analysis. Neuropsychobiology 2016; 72:206-18. [PMID: 26901154 DOI: 10.1159/000437434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 07/06/2015] [Indexed: 11/19/2022]
Abstract
High spatial and temporal resolution measurements of neuronal activity are preferably combined. In an overview on how this approach can take shape, multimodal electroencephalography (EEG) is treated in 2 main parts: by experiments without a task and in the experimentally cued working brain. It concentrates first on the alpha rhythm properties and next on data-driven search for patterns such as the default mode network. The high-resolution volumic distributions of neuronal metabolic indices result in distributed cortical regions and possibly relate to numerous nuclei, observable in a non-invasive manner in the central nervous system of humans. The second part deals with paradigms in which nowadays assessment of target-related networks can align level-dependent blood oxygenation, electrical responses and behaviour, taking the temporal resolution advantages of event-related potentials. Evidence-based electrical propagation in serial tasks during performance is now to a large extent attributed to interconnected pathways, particularly chronometry-dependent ones, throughout a chain including a dorsal stream, next ventral cortical areas taking the flow of information towards inferior temporal domains. The influence of aging is documented, and results of the first multimodal studies in neuropharmacology are consistent. Finally a scope on implementation of advanced clinical applications and personalized marker strategies in neuropsychiatry is indicated.
Collapse
|
37
|
Mercier MR, Schwartz S, Spinelli L, Michel CM, Blanke O. Dorsal and ventral stream contributions to form-from-motion perception in a patient with form-from motion deficit: a case report. Brain Struct Funct 2016; 222:1093-1107. [PMID: 27318997 DOI: 10.1007/s00429-016-1245-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Accepted: 05/28/2016] [Indexed: 10/21/2022]
Abstract
The main model of visual processing in primates proposes an anatomo-functional distinction between the dorsal stream, specialized in spatio-temporal information, and the ventral stream, processing essentially form information. However, these two pathways also communicate to share much visual information. These dorso-ventral interactions have been studied using form-from-motion (FfM) stimuli, revealing that FfM perception first activates dorsal regions (e.g., MT+/V5), followed by successive activations of ventral regions (e.g., LOC). However, relatively little is known about the implications of focal brain damage of visual areas on these dorso-ventral interactions. In the present case report, we investigated the dynamics of dorsal and ventral activations related to FfM perception (using topographical ERP analysis and electrical source imaging) in a patient suffering from a deficit in FfM perception due to right extrastriate brain damage in the ventral stream. Despite the patient's FfM impairment, both successful (observed for the highest level of FfM signal) and absent/failed FfM perception evoked the same temporal sequence of three processing states observed previously in healthy subjects. During the first period, brain source localization revealed cortical activations along the dorsal stream, currently associated with preserved elementary motion processing. During the latter two periods, the patterns of activity differed from normal subjects: activations were observed in the ventral stream (as reported for normal subjects), but also in the dorsal pathway, with the strongest and most sustained activity localized in the parieto-occipital regions. On the other hand, absent/failed FfM perception was characterized by weaker brain activity, restricted to the more lateral regions. This study shows that in the present case report, successful FfM perception, while following the same temporal sequence of processing steps as in normal subjects, evoked different patterns of brain activity. By revealing a brain circuit involving the most rostral part of the dorsal pathway, this study provides further support for neuro-imaging studies and brain lesion investigations that have suggested the existence of different brain circuits associated with different profiles of interaction between the dorsal and the ventral streams.
Collapse
Affiliation(s)
- Manuel R Mercier
- Laboratory of Cognitive Neuroscience, Brain-Mind Institute, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 19, 1015, Lausanne, Switzerland.,The Functional Brain Mapping Laboratory, Department of Neuroscience, University of Geneva, Geneva, Switzerland.,Department of Neurology, University Hospital, Geneva, Switzerland.,Centre de Recherche Cerveau et Cognition (CerCo), CNRS, UMR5549, Pavillon Baudot CHU Purpan, BP 25202, 31052, Toulouse Cedex, France
| | - Sophie Schwartz
- Department of Fundamental Neuroscience, University of Geneva, Geneva, Switzerland.,Swiss Center for Affective Sciences, University of Geneva, Geneva, Switzerland
| | - Laurent Spinelli
- Department of Neurology, University Hospital, Geneva, Switzerland
| | - Christoph M Michel
- The Functional Brain Mapping Laboratory, Department of Neuroscience, University of Geneva, Geneva, Switzerland
| | - Olaf Blanke
- Laboratory of Cognitive Neuroscience, Brain-Mind Institute, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 19, 1015, Lausanne, Switzerland. .,Department of Neurology, University Hospital, Geneva, Switzerland. .,Laboratory of Cognitive Neuroscience, Center for Neuroprosthetics and Brain Mind Institute, Swiss Federal Institute of Technology (EPFL), Chemin des Mines 9, 1202, Geneva, Switzerland.
| |
Collapse
|
38
|
Mahé G, Zesiger P, Laganaro M. Beyond the initial 140 ms, lexical decision and reading aloud are different tasks: An ERP study with topographic analysis. Neuroimage 2015; 122:65-72. [DOI: 10.1016/j.neuroimage.2015.07.080] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2014] [Revised: 07/24/2015] [Accepted: 07/28/2015] [Indexed: 10/23/2022] Open
|
39
|
Fargier R, Laganaro M. Neural dynamics of object noun, action verb and action noun production in picture naming. BRAIN AND LANGUAGE 2015; 150:129-142. [PMID: 26433472 DOI: 10.1016/j.bandl.2015.09.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 09/14/2015] [Accepted: 09/15/2015] [Indexed: 06/05/2023]
Abstract
The verb/noun dissociation has often involved the semantic/grammatical confound. We conducted two event-related potentials (ERPs) studies with the aim of minimizing this confound. In Experiment 1 participants named pictures depicting actions, with verbs or nouns and pictures depicting objects with nouns. In Experiment 2, participants named objects (nouns) or actions (verbs/nouns) from the same set of action pictures. Compatible with lexical-semantic processes, semantic category modulated waveform amplitudes and topographic patterns between 250 and 380 ms after picture-onset in Experiment 1. No such effects were observed in Experiment 2. No effects were found for grammatical class in both experiments suggesting that grammatical information is not mandatorily activated during lexical-semantic processes. Given the absence of dissociation when same pictures were used the results are described as feed-forward effects from visual to semantic processing, indicating differential neural networks for lexical selection of action and object words from their corresponding visual referents.
Collapse
|
40
|
Cacioppo S, Cacioppo JT. Dynamic spatiotemporal brain analyses using high-performance electrical neuroimaging, Part II: A step-by-step tutorial. J Neurosci Methods 2015; 256:184-97. [PMID: 26363189 DOI: 10.1016/j.jneumeth.2015.09.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 08/31/2015] [Accepted: 09/03/2015] [Indexed: 11/19/2022]
Abstract
Our recently published analytic toolbox (Cacioppo et al., 2014), running under MATLAB environment and Brainstorm, offered a theoretical framework and set of validation studies for the automatic detection of event-related changes in the global pattern and global field power of electrical brain activity. Here, we provide a step-by-step tutorial of this toolbox along with a detailed description of analytical plans (aka the Chicago Electrical Neuroimaging Analytics, CENA) for the statistical analysis of brain microstate configuration and global field power in within and between-subject designs. Available CENA functions include: (1) a difference wave function; (2) a high-performance microsegmentation suite (HPMS), which consists of three specific analytic tools: (i) a root mean square error (RMSE) metric for identifying stable states and transition states across discrete event-related brain microstates; (ii) a similarity metric based on cosine distance in n dimensional sensor space to determine whether template maps for successive brain microstates differ in configuration of brain activity, and (iii) global field power (GFP) metrics for identifying changes in the overall level of activation of the brain; (3) a bootstrapping function for assessing the extent to which the solutions identified in the HPMS are robust (reliable, generalizable) and for empirically deriving additional experimental hypotheses; and (4) step-by-step procedures for performing a priori contrasts for data analysis. CENA is freely available for brain data spatiotemporal analyses at https://hpenlaboratory.uchicago.edu/page/cena, with sample data, user tutorial videos, and documentation.
Collapse
Affiliation(s)
- Stephanie Cacioppo
- High-Performance Electrical Neuroimaging Laboratory, Biological Science Division, University of Chicago Pritzker School of Medicine, Chicago, IL 60637, USA.
| | - John T Cacioppo
- Center for Cognitive and Social Neuroscience, University of Chicago, Chicago, IL 60637, USA.
| |
Collapse
|
41
|
Pegna AJ, Gehring E, Meyer G, Del Zotto M. Direction of Biological Motion Affects Early Brain Activation: A Link with Social Cognition. PLoS One 2015; 10:e0131551. [PMID: 26121591 PMCID: PMC4487996 DOI: 10.1371/journal.pone.0131551] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 06/03/2015] [Indexed: 11/21/2022] Open
Abstract
A number of EEG studies have investigated the time course of brain activation for biological movement over this last decade, however the temporal dynamics of processing are still debated. Moreover, the role of direction of movement has not received much attention even though it is an essential component allowing us to determine the intentions of the moving agent, and thus permitting the anticipation of potential social interactions. In this study, we examined event-related responses (ERPs) in 15 healthy human participants to light point walkers and their scrambled counterparts, whose movements occurred either in the radial or in the lateral plane. Compared to scrambled motion (SM), biological motion (BM) showed an enhanced negativity between 210 and 360ms. A source localization algorithm (sLORETA) revealed that this was due to an increase in superior and middle temporal lobe activity. Regarding direction, we found that radial BM produced an enhanced P1 compared to lateral BM, lateral SM and radial SM. This heightened P1 was due to an increase in activity in extrastriate regions, as well as in superior temporal, medial parietal and medial prefrontal areas. This network is known to be involved in decoding the underlying intentionality of the movement and in the attribution of mental states. The social meaning signaled by the direction of biological motion therefore appears to trigger an early response in brain activity.
Collapse
Affiliation(s)
- Alan John Pegna
- University of Geneva, Faculty of Psychology and Educational Science, Geneva, Switzerland
- Laboratory of Experimental Neuropsychology, Neuropsychology Unit / Neurology Clinic, Geneva University Hospital, Geneva, Switzerland
- * E-mail:
| | - Elise Gehring
- Laboratory of Experimental Neuropsychology, Neuropsychology Unit / Neurology Clinic, Geneva University Hospital, Geneva, Switzerland
| | - Georg Meyer
- University of Liverpool, Dept of Psychological Sciences, Eleanor Rathbone Building, Liverpool, United Kingdom
| | - Marzia Del Zotto
- University of Geneva, Faculty of Psychology and Educational Science, Geneva, Switzerland
- Laboratory of Experimental Neuropsychology, Neuropsychology Unit / Neurology Clinic, Geneva University Hospital, Geneva, Switzerland
| |
Collapse
|
42
|
Angelini M, Calbi M, Ferrari A, Sbriscia-Fioretti B, Franca M, Gallese V, Umiltà MA. Motor Inhibition during Overt and Covert Actions: An Electrical Neuroimaging Study. PLoS One 2015; 10:e0126800. [PMID: 26000451 PMCID: PMC4441499 DOI: 10.1371/journal.pone.0126800] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Accepted: 04/07/2015] [Indexed: 11/18/2022] Open
Abstract
Given ample evidence for shared cortical structures involved in encoding actions, whether or not subsequently executed, a still unsolved problem is the identification of neural mechanisms of motor inhibition, preventing “covert actions” as motor imagery from being performed, in spite of the activation of the motor system. The principal aims of the present study were the evaluation of: 1) the presence in covert actions as motor imagery of putative motor inhibitory mechanisms; 2) their underlying cerebral sources; 3) their differences or similarities with respect to cerebral networks underpinning the inhibition of overt actions during a Go/NoGo task. For these purposes, we performed a high density EEG study evaluating the cerebral microstates and their related sources elicited during two types of Go/NoGo tasks, requiring the execution or withholding of an overt or a covert imagined action, respectively. Our results show for the first time the engagement during motor imagery of key nodes of a putative inhibitory network (including pre-supplementary motor area and right inferior frontal gyrus) partially overlapping with those activated for the inhibition of an overt action during the overt NoGo condition. At the same time, different patterns of temporal recruitment in these shared neural inhibitory substrates are shown, in accord with the intended overt or covert modality of action performance. The evidence that apparently divergent mechanisms such as controlled inhibition of overt actions and contingent automatic inhibition of covert actions do indeed share partially overlapping neural substrates, further challenges the rigid dichotomy between conscious, explicit, flexible and unconscious, implicit, inflexible forms of motor behavioral control.
Collapse
Affiliation(s)
- Monica Angelini
- Department of Neuroscience, Unit of Physiology, University of Parma, Parma, Italy
- * E-mail:
| | - Marta Calbi
- Department of Neuroscience, Unit of Physiology, University of Parma, Parma, Italy
| | - Annachiara Ferrari
- Department of Neuroscience, Unit of Physiology, University of Parma, Parma, Italy
| | | | - Michele Franca
- Department of Neuroscience, Unit of Physiology, University of Parma, Parma, Italy
| | - Vittorio Gallese
- Department of Neuroscience, Unit of Physiology, University of Parma, Parma, Italy
| | | |
Collapse
|
43
|
Laganaro M, Tzieropoulos H, Frauenfelder UH, Zesiger P. Functional and time-course changes in single word production from childhood to adulthood. Neuroimage 2015; 111:204-14. [DOI: 10.1016/j.neuroimage.2015.02.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 01/14/2015] [Accepted: 02/11/2015] [Indexed: 10/24/2022] Open
|
44
|
Bouzerda-Wahlen A, Nahum L, Liverani MC, Guggisberg AG, Schnider A. An Electrophysiological Dissociation between Orbitofrontal Reality Filtering and Context Source Monitoring. J Cogn Neurosci 2015; 27:164-74. [DOI: 10.1162/jocn_a_00686] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Abstract
Memory influences behavior in multiple ways. One important aspect is to remember in what precise context in the past a piece of information was acquired (context source monitoring). Another important aspect is to sense whether an upcoming thought, composed of fragments of memories, refers to present reality and can be acted upon (orbitofrontal reality filtering). Whether these memory control processes share common underlying mechanisms is unknown. Failures of both have been held accountable for false memories, including confabulation. Electrophysiological and imaging studies suggest a dissociation but used very different paradigms. In this study, we juxtaposed the requirements of context source monitoring and reality filtering within a unique continuous recognition task, which healthy participants performed while high-resolution evoked potentials were recorded. The mechanisms dissociated both behaviorally and electrophysiologically: Reality filtering induced a frontal positivity, absence of a specific electrocortical configuration, and posterior medial orbitofrontal activity at 200–300 msec. Context source monitoring had no electrophysiological expression in this early period. It was slower and less accurate than reality filtering and induced a prolonged positive potential over frontal leads starting at 400 msec. The study demonstrates a hitherto unrecognized separation between orbitofrontal reality filtering and source monitoring. Whereas deficient orbitofrontal reality filtering is associated with reality confusion in thinking, the behavioral correlates of deficient source monitoring should be verified with controlled experimental exploration.
Collapse
Affiliation(s)
| | | | | | | | - Armin Schnider
- 1University of Geneva
- 2University Hospital, Geneva, Switzerland
| |
Collapse
|
45
|
Khanna A, Pascual-Leone A, Michel CM, Farzan F. Microstates in resting-state EEG: current status and future directions. Neurosci Biobehav Rev 2014; 49:105-13. [PMID: 25526823 DOI: 10.1016/j.neubiorev.2014.12.010] [Citation(s) in RCA: 431] [Impact Index Per Article: 43.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 12/02/2014] [Accepted: 12/09/2014] [Indexed: 11/28/2022]
Abstract
Electroencephalography (EEG) is a powerful method of studying the electrophysiology of the brain with high temporal resolution. Several analytical approaches to extract information from the EEG signal have been proposed. One method, termed microstate analysis, considers the multichannel EEG recording as a series of quasi-stable "microstates" that are each characterized by a unique topography of electric potentials over the entire channel array. Because this technique simultaneously considers signals recorded from all areas of the cortex, it is capable of assessing the function of large-scale brain networks whose disruption is associated with several neuropsychiatric disorders. In this review, we first introduce the method of EEG microstate analysis. We then review studies that have discovered significant changes in the resting-state microstate series in a variety of neuropsychiatric disorders and behavioral states. We discuss the potential utility of this method in detecting neurophysiological impairments in disease and monitoring neurophysiological changes in response to an intervention. Finally, we discuss how the resting-state microstate series may reflect rapid switching among neural networks while the brain is at rest, which could represent activity of resting-state networks described by other neuroimaging modalities. We conclude by commenting on the current and future status of microstate analysis, and suggest that EEG microstates represent a promising neurophysiological tool for understanding and assessing brain network dynamics on a millisecond timescale in health and disease.
Collapse
Affiliation(s)
- Arjun Khanna
- Berenson-Allen Center for Non-invasive Brain Stimulation, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Alvaro Pascual-Leone
- Berenson-Allen Center for Non-invasive Brain Stimulation, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Christoph M Michel
- EEG Brain Mapping Core, Center for Biomedical Imaging of Lausanne and Geneva, Switzerland; The Functional Brain Mapping Laboratory, Departments of Fundamental and Clinical Neurosciences, University of Geneva and University Hospital Geneva, Switzerland
| | - Faranak Farzan
- Berenson-Allen Center for Non-invasive Brain Stimulation, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Temerty Centre for Therapeutic Brain Intervention, Centre for Addiction and Mental Health, University of Toronto, Toronto, Ontario, Canada.
| |
Collapse
|
46
|
Zhao C, Valentini E, Hu L. Functional features of crossmodal mismatch responses. Exp Brain Res 2014; 233:617-29. [DOI: 10.1007/s00221-014-4141-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 11/02/2014] [Indexed: 11/25/2022]
|
47
|
Cacioppo S, Weiss RM, Runesha HB, Cacioppo JT. Dynamic spatiotemporal brain analyses using high performance electrical neuroimaging: theoretical framework and validation. J Neurosci Methods 2014; 238:11-34. [PMID: 25244954 DOI: 10.1016/j.jneumeth.2014.09.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2014] [Revised: 09/07/2014] [Accepted: 09/11/2014] [Indexed: 10/24/2022]
Abstract
BACKGROUND Since Berger's first EEG recordings in 1929, several techniques, initially developed for investigating periodic processes, have been applied to study non-periodic event-related brain state dynamics. NEW METHOD We provide a theoretical comparison of the two approaches and present a new suite of data-driven analytic tools for the specific identification of the brain microstates in high-density event-related brain potentials (ERPs). This suite includes four different analytic methods. We validated this approach through a series of theoretical simulations and an empirical investigation of a basic visual paradigm, the reversal checkerboard task. RESULTS Results indicate that the present suite of data-intensive analytic techniques, improves the spatiotemporal information one can garner about non-periodic brain microstates from high-density electrical neuroimaging data. COMPARISON WITH EXISTING METHOD(S) Compared to the existing methods (such as those based on k-clustering methods), the current micro-segmentation approach offers several advantages, including the data-driven (automatic) detection of non-periodic quasi-stable brain states. CONCLUSION This suite of quantitative methods allows the automatic detection of event-related changes in the global pattern of brain activity, putatively reflecting changes in the underlying neural locus for information processing in the brain, and event-related changes in overall brain activation. In addition, within-subject and between-subject bootstrapping procedures provide a quantitative means of investigating how robust are the results of the micro-segmentation.
Collapse
Affiliation(s)
- Stephanie Cacioppo
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL 60637, USA; CCSN High Performance Electrical Neuroimaging Laboratory, University of Chicago, Chicago, IL 60637, USA.
| | - Robin M Weiss
- CCSN High Performance Electrical Neuroimaging Laboratory, University of Chicago, Chicago, IL 60637, USA; Research Computing Center, University of Chicago, Chicago, IL 60637, USA.
| | | | - John T Cacioppo
- Center for Cognitive and Social Neuroscience, University of Chicago, Chicago, IL 60637, USA; Department of Psychology, University of Chicago, Chicago, IL 60637, USA.
| |
Collapse
|
48
|
Perret C, Bonin P, Laganaro M. Exploring the multiple-level hypothesis of AoA effects in spoken and written object naming using a topographic ERP analysis. BRAIN AND LANGUAGE 2014; 135:20-31. [PMID: 24887390 DOI: 10.1016/j.bandl.2014.04.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 04/07/2014] [Accepted: 04/26/2014] [Indexed: 06/03/2023]
Abstract
Here we tested the multiple-loci hypothesis of age-of-acquisition effects in both spoken and handwritten object naming using Event-Related Potentials (ERPs) and spatiotemporal segmentation analysis. Participants had to say aloud or write down picture names that varied on frequency trajectory (age-of-acquisition). Early-acquired words yielded shorter naming times than late-acquired words in both spoken and written naming. More importantly, AoA modulated ERPs only during a later time-window in both output modalities: waveforms started to diverge around 400 ms, which corresponded to the end of a period of topographic stability starting at around 260 ms in both conditions. These stable electrophysiological maps lasted longer in the late than in the early-acquired condition and shifted the onset of the following periods of stable electrophysiological activity. Taken together, the findings are at odds with the multiple loci hypothesis, but support the hypothesis that AoA affects a single encoding level, namely the word-form encoding process.
Collapse
Affiliation(s)
- Cyril Perret
- University of Poitiers, CerCA - UMR 7295 - CNRS, 5 rue Théodore Lefebvre, F86000, Poitiers, France.
| | - Patrick Bonin
- University of Bourgogne, LEAD - UMR 5022 - CNRS, Pôle AAFE, 11 place Erasme, F21000, Dijon, France; Institut Universitaire de France, 103 bd Saint Michel, F75005, France
| | - Marina Laganaro
- University of Geneva, FAPSE, 40 bd Pont d'Arve, CH1211, Geneva, Switzerland
| |
Collapse
|
49
|
Münch M, Plomp G, Thunell E, Kawasaki A, Scartezzini JL, Herzog MH. Different colors of light lead to different adaptation and activation as determined by high-density EEG. Neuroimage 2014; 101:547-54. [PMID: 25016138 DOI: 10.1016/j.neuroimage.2014.06.071] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 06/13/2014] [Accepted: 06/26/2014] [Indexed: 11/29/2022] Open
Abstract
Light adaptation is crucial for coping with the varying levels of ambient light. Using high-density electroencephalography (EEG), we investigated how adaptation to light of different colors affects brain responsiveness. In a within-subject design, sixteen young participants were adapted first to dim white light and then to blue, green, red, or white bright light (one color per session in a randomized order). Immediately after both dim and bright light adaptation, we presented brief light pulses and recorded event-related potentials (ERPs). We analyzed ERP response strengths and brain topographies and determined the underlying sources using electrical source imaging. Between 150 and 261 ms after stimulus onset, the global field power (GFP) was higher after dim than bright light adaptation. This effect was most pronounced with red light and localized in the frontal lobe, the fusiform gyrus, the occipital lobe and the cerebellum. After bright light adaptation, within the first 100 ms after light onset, stronger responses were found than after dim light adaptation for all colors except for red light. Differences between conditions were localized in the frontal lobe, the cingulate gyrus, and the cerebellum. These results indicate that very short-term EEG brain responses are influenced by prior light adaptation and the spectral quality of the light stimulus. We show that the early EEG responses are differently affected by adaptation to different colors of light which may contribute to known differences in performance and reaction times in cognitive tests.
Collapse
Affiliation(s)
- M Münch
- Solar Energy and Building Physics Laboratory (LESO-PB), School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne, Switzerland.
| | - G Plomp
- Laboratory of Psychophysics (LPSY), Brain and Mind Institute, École Polytechnique Fédérale de Lausanne, Switzerland; Functional Brain Mapping Laboratory, Department of Basic Neuroscience, University of Geneva, Switzerland
| | - E Thunell
- Laboratory of Psychophysics (LPSY), Brain and Mind Institute, École Polytechnique Fédérale de Lausanne, Switzerland
| | - A Kawasaki
- University of Lausanne, Hôpital Ophtalmique Jules-Gonin, Lausanne, Switzerland
| | - J L Scartezzini
- Solar Energy and Building Physics Laboratory (LESO-PB), School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne, Switzerland
| | - M H Herzog
- Laboratory of Psychophysics (LPSY), Brain and Mind Institute, École Polytechnique Fédérale de Lausanne, Switzerland
| |
Collapse
|
50
|
Gindrat AD, Quairiaux C, Britz J, Brunet D, Lanz F, Michel CM, Rouiller EM. Whole-scalp EEG mapping of somatosensory evoked potentials in macaque monkeys. Brain Struct Funct 2014; 220:2121-42. [PMID: 24791748 PMCID: PMC4495608 DOI: 10.1007/s00429-014-0776-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 04/07/2014] [Indexed: 11/20/2022]
Abstract
High-density scalp EEG recordings are widely used to study whole-brain neuronal networks in humans non-invasively. Here, we validate EEG mapping of somatosensory evoked potentials (SSEPs) in macaque monkeys (Macaca fascicularis) for the long-term investigation of large-scale neuronal networks and their reorganisation after lesions requiring a craniotomy. SSEPs were acquired from 33 scalp electrodes in five adult anaesthetized animals after electrical median or tibial nerve stimulation. SSEP scalp potential maps were identified by cluster analysis and identified in individual recordings. A distributed, linear inverse solution was used to estimate the intracortical sources of the scalp potentials. SSEPs were characterised by a sequence of components with unique scalp topographies. Source analysis confirmed that median nerve SSEP component maps were in accordance with the somatotopic organisation of the sensorimotor cortex. Most importantly, SSEP recordings were stable both intra- and interindividually. We aim to apply this method to the study of recovery and reorganisation of large-scale neuronal networks following a focal cortical lesion requiring a craniotomy. As a prerequisite, the present study demonstrated that a 300-mm2 unilateral craniotomy over the sensorimotor cortex necessary to induce a cortical lesion, followed by bone flap repositioning, suture and gap plugging with calcium phosphate cement, did not induce major distortions of the SSEPs. In conclusion, SSEPs can be successfully and reproducibly recorded from high-density EEG caps in macaque monkeys before and after a craniotomy, opening new possibilities for the long-term follow-up of the cortical reorganisation of large-scale networks in macaque monkeys after a cortical lesion.
Collapse
Affiliation(s)
- Anne-Dominique Gindrat
- Domain of Physiology, Department of Medicine, Faculty of Sciences and Fribourg Center for Cognition, University of Fribourg, Chemin du Musée 5, 1700, Fribourg, Switzerland,
| | | | | | | | | | | | | |
Collapse
|