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Rosenthal IA, Bashford L, Bjånes D, Pejsa K, Lee B, Liu C, Andersen RA. Visual context affects the perceived timing of tactile sensations elicited through intra-cortical microstimulation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.13.593529. [PMID: 38798438 PMCID: PMC11118490 DOI: 10.1101/2024.05.13.593529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Intra-cortical microstimulation (ICMS) is a technique to provide tactile sensations for a somatosensory brain-machine interface (BMI). A viable BMI must function within the rich, multisensory environment of the real world, but how ICMS is integrated with other sensory modalities is poorly understood. To investigate how ICMS percepts are integrated with visual information, ICMS and visual stimuli were delivered at varying times relative to one another. Both visual context and ICMS current amplitude were found to bias the qualitative experience of ICMS. In two tetraplegic participants, ICMS and visual stimuli were more likely to be experienced as occurring simultaneously when visual stimuli were more realistic, demonstrating an effect of visual context on the temporal binding window. The peak of the temporal binding window varied but was consistently offset from zero, suggesting that multisensory integration with ICMS can suffer from temporal misalignment. Recordings from primary somatosensory cortex (S1) during catch trials where visual stimuli were delivered without ICMS demonstrated that S1 represents visual information related to ICMS across visual contexts.
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Affiliation(s)
- Isabelle A Rosenthal
- Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
- T&C Chen Brain-machine Interface Center, California Institute of Technology, Pasadena, CA 91125, USA
- Lead Contact
| | - Luke Bashford
- Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
- T&C Chen Brain-machine Interface Center, California Institute of Technology, Pasadena, CA 91125, USA
- Biosciences Institute, Newcastle University, UK
| | - David Bjånes
- Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
- T&C Chen Brain-machine Interface Center, California Institute of Technology, Pasadena, CA 91125, USA
| | - Kelsie Pejsa
- Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
- T&C Chen Brain-machine Interface Center, California Institute of Technology, Pasadena, CA 91125, USA
| | - Brian Lee
- Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
- Department of Neurological Surgery, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
- USC Neurorestoration Center, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
| | - Charles Liu
- Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
- Department of Neurological Surgery, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
- USC Neurorestoration Center, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
- Rancho Los Amigos National Rehabilitation Center, Downey, CA 90242, USA
| | - Richard A Andersen
- Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
- T&C Chen Brain-machine Interface Center, California Institute of Technology, Pasadena, CA 91125, USA
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Snyder DB, Beardsley SA, Hyngstrom AS, Schmit BD. Cortical effects of wrist tendon vibration during an arm tracking task in chronic stroke survivors: An EEG study. PLoS One 2023; 18:e0266586. [PMID: 38127998 PMCID: PMC10735026 DOI: 10.1371/journal.pone.0266586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
The purpose of this study was to characterize changes in cortical activity and connectivity in stroke survivors when vibration is applied to the wrist flexor tendons during a visuomotor tracking task. Data were collected from 10 chronic stroke participants and 10 neurologically-intact controls while tracking a target through a figure-8 pattern in the horizontal plane. Electroencephalography (EEG) was used to measure cortical activity (beta band desynchronization) and connectivity (beta band task-based coherence) with movement kinematics and performance error also being recorded during the task. All participants came into our lab on two separate days and performed three blocks (16 trials each, 48 total trials) of tracking, with the middle block including vibration or sham applied at the wrist flexor tendons. The order of the sessions (Vibe vs. Sham) was counterbalanced across participants to prevent ordering effects. During the Sham session, cortical activity increased as the tracking task progressed (over blocks). This effect was reduced when vibration was applied to controls. In contrast, vibration increased cortical activity during the vibration period in participants with stroke. Cortical connectivity increased during vibration, with larger effect sizes in participants with stroke. Changes in tracking performance, standard deviation of hand speed, were observed in both control and stroke groups. Overall, EEG measures of brain activity and connectivity provided insight into effects of vibration on brain control of a visuomotor task. The increases in cortical activity and connectivity with vibration improved patterns of activity in people with stroke. These findings suggest that reactivation of normal cortical networks via tendon vibration may be useful during physical rehabilitation of stroke patients.
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Affiliation(s)
- Dylan B. Snyder
- Department of Biomedical Engineering, Marquette University and Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Scott A. Beardsley
- Department of Biomedical Engineering, Marquette University and Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Allison S. Hyngstrom
- Department of Physical Therapy, Marquette University, Milwaukee, Wisconsin, United States of America
| | - Brian D. Schmit
- Department of Biomedical Engineering, Marquette University and Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
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Studenova A, Forster C, Engemann DA, Hensch T, Sanders C, Mauche N, Hegerl U, Loffler M, Villringer A, Nikulin V. Event-related modulation of alpha rhythm explains the auditory P300-evoked response in EEG. eLife 2023; 12:RP88367. [PMID: 38038725 PMCID: PMC10691803 DOI: 10.7554/elife.88367] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023] Open
Abstract
Evoked responses and oscillations represent two major electrophysiological phenomena in the human brain yet the link between them remains rather obscure. Here we show how most frequently studied EEG signals: the P300-evoked response and alpha oscillations (8-12 Hz) can be linked with the baseline-shift mechanism. This mechanism states that oscillations generate evoked responses if oscillations have a non-zero mean and their amplitude is modulated by the stimulus. Therefore, the following predictions should hold: (1) the temporal evolution of P300 and alpha amplitude is similar, (2) spatial localisations of the P300 and alpha amplitude modulation overlap, (3) oscillations are non-zero mean, (4) P300 and alpha amplitude correlate with cognitive scores in a similar fashion. To validate these predictions, we analysed the data set of elderly participants (N=2230, 60-82 years old), using (a) resting-state EEG recordings to quantify the mean of oscillations, (b) the event-related data, to extract parameters of P300 and alpha rhythm amplitude envelope. We showed that P300 is indeed linked to alpha rhythm, according to all four predictions. Our results provide an unifying view on the interdependency of evoked responses and neuronal oscillations and suggest that P300, at least partly, is generated by the modulation of alpha oscillations.
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Affiliation(s)
- Alina Studenova
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain SciencesLeipzigGermany
- Max Planck School of CognitionLeipzigGermany
| | - Carina Forster
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain SciencesLeipzigGermany
- Bernstein Center for Computational Neuroscience, Charité – Universitätsmedizin BerlinBerlinGermany
| | - Denis Alexander Engemann
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain SciencesLeipzigGermany
- Roche Pharma Research and Early Development, Neuroscience and Rare Diseases, Roche Innovation Center Basel, F. Hoffmann–La Roche Ltd.BaselSwitzerland
| | - Tilman Hensch
- LIFE – Leipzig Research Center for Civilization Diseases, University of LeipzigLeipzigGermany
- Department of Psychology, IU International University of Applied SciencesErfurtGermany
- Department of Psychiatry and Psychotherapy, University of Leipzig Medical CenterLeipzigGermany
| | - Christian Sanders
- LIFE – Leipzig Research Center for Civilization Diseases, University of LeipzigLeipzigGermany
- Department of Psychiatry and Psychotherapy, University of Leipzig Medical CenterLeipzigGermany
| | - Nicole Mauche
- Department of Psychiatry and Psychotherapy, University of Leipzig Medical CenterLeipzigGermany
| | - Ulrich Hegerl
- Department of Psychiatry, Psychosomatics and Psychotherapy, Goethe University FrankfurtFrankfurtGermany
| | - Markus Loffler
- LIFE – Leipzig Research Center for Civilization Diseases, University of LeipzigLeipzigGermany
- Institute for Medical Informatics, Statistics and Epidemiology (IMISE), University of LeipzigLeipzigGermany
| | - Arno Villringer
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain SciencesLeipzigGermany
- Clinic for Cognitive Neurology, University Hospital LeipzigLeipzigGermany
| | - Vadim Nikulin
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain SciencesLeipzigGermany
- Bernstein Center for Computational Neuroscience BerlinBerlinGermany
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Espenhahn S, Godfrey KJ, Kaur S, McMorris C, Murias K, Tommerdahl M, Bray S, Harris AD. Atypical Tactile Perception in Early Childhood Autism. J Autism Dev Disord 2022:10.1007/s10803-022-05570-7. [PMID: 35482274 DOI: 10.1007/s10803-022-05570-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2022] [Indexed: 11/24/2022]
Abstract
We assessed different aspects of tactile perception in young children (3-6 years) with autism. Autistic and neurotypical children completed vibrotactile tasks assessing reaction time, amplitude discrimination (sequential and simultaneous) and temporal discrimination (temporal order judgment and duration discrimination). Autistic children had elevated and more variable reaction times, suggesting slower perceptual-motor processing speed and/or greater distractibility. Children with autism also showed higher amplitude discrimination and temporal order judgement thresholds compared to neurotypical children. Tactile perceptual metrics did not associate with social or tactile sensitivities measured by parent-reports. Altered tactile behavioral responses appear in early childhood, can be quantified but appear dissociated from sensitivity. This implies these measures are complementary, but not necessarily related, phenomena of atypical tactile perception in autism.
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Affiliation(s)
- Svenja Espenhahn
- Department of Radiology, Cumming School of Medicine, University of Calgary Alberta Children's Hospital, Office B4-512 28 Oki Drive NW, T3B 6A8, Calgary, AB, Canada.,Owerko Centre, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Kate J Godfrey
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,Owerko Centre, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.,Department of Neuroscience, University of Calgary, Calgary, AB, Canada
| | - Sakshi Kaur
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,Owerko Centre, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Carly McMorris
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,Owerko Centre, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.,Werklund School of Education, University of Calgary, Calgary, Alberta, Canada
| | - Kara Murias
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,Owerko Centre, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.,Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Mark Tommerdahl
- Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Signe Bray
- Department of Radiology, Cumming School of Medicine, University of Calgary Alberta Children's Hospital, Office B4-512 28 Oki Drive NW, T3B 6A8, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,Owerko Centre, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Ashley D Harris
- Department of Radiology, Cumming School of Medicine, University of Calgary Alberta Children's Hospital, Office B4-512 28 Oki Drive NW, T3B 6A8, Calgary, AB, Canada. .,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada. .,Owerko Centre, University of Calgary, Calgary, AB, Canada. .,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.
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5
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Espenhahn S, Godfrey KJ, Kaur S, Ross M, Nath N, Dmitrieva O, McMorris C, Cortese F, Wright C, Murias K, Dewey D, Protzner AB, McCrimmon A, Bray S, Harris AD. Tactile cortical responses and association with tactile reactivity in young children on the autism spectrum. Mol Autism 2021; 12:26. [PMID: 33794998 PMCID: PMC8017878 DOI: 10.1186/s13229-021-00435-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 03/23/2021] [Indexed: 01/01/2023] Open
Abstract
Background Unusual behavioral reactions to sensory stimuli are frequently reported in individuals on the autism spectrum (AS). Despite the early emergence of sensory features (< age 3) and their potential impact on development and quality of life, little is known about the neural mechanisms underlying sensory reactivity in early childhood autism. Methods Here, we used electroencephalography (EEG) to investigate tactile cortical processing in young children aged 3–6 years with autism and in neurotypical (NT) children. Scalp EEG was recorded from 33 children with autism, including those with low cognitive and/or verbal abilities, and 45 age- and sex-matched NT children during passive tactile fingertip stimulation. We compared properties of early and later somatosensory-evoked potentials (SEPs) and their adaptation with repetitive stimulation between autistic and NT children and assessed whether these neural measures are linked to “real-world” parent-reported tactile reactivity. Results As expected, we found elevated tactile reactivity in children on the autism spectrum. Our findings indicated no differences in amplitude or latency of early and mid-latency somatosensory-evoked potentials (P50, N80, P100), nor adaptation between autistic and NT children. However, latency of later processing of tactile information (N140) was shorter in young children with autism compared to NT children, suggesting faster processing speed in young autistic children. Further, correlational analyses and exploratory analyses using tactile reactivity as a grouping variable found that enhanced early neural responses were associated with greater tactile reactivity in autism. Limitations The relatively small sample size and the inclusion of a broad range of autistic children (e.g., with low cognitive and/or verbal abilities) may have limited our power to detect subtle group differences and associations. Hence, replications are needed to verify these results. Conclusions Our findings suggest that electrophysiological somatosensory cortex processing measures may be indices of “real-world” tactile reactivity in early childhood autism. Together, these findings advance our understanding of the neurophysiological mechanisms underlying tactile reactivity in early childhood autism and, in the clinical context, may have therapeutic implications. Supplementary Information The online version contains supplementary material available at 10.1186/s13229-021-00435-9.
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Affiliation(s)
- Svenja Espenhahn
- Department of Radiology, Cumming School of Medicine, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 4N1, Canada. .,Child and Adolescent Imaging Research (CAIR) Program, University of Calgary, Calgary, AB, Canada. .,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada. .,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.
| | - Kate J Godfrey
- Department of Clinical Neuroscience, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Child and Adolescent Imaging Research (CAIR) Program, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Sakshi Kaur
- Child and Adolescent Imaging Research (CAIR) Program, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Maia Ross
- Child and Adolescent Imaging Research (CAIR) Program, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Niloy Nath
- Child and Adolescent Imaging Research (CAIR) Program, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Olesya Dmitrieva
- Child and Adolescent Imaging Research (CAIR) Program, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Carly McMorris
- Department of Paediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,The Mathison Centre for Mental Health Research and Education, University of Calgary, Calgary, AB, Canada.,Werklund School of Education, University of Calgary, Calgary, AB, Canada.,Department of Psychology, Faculty of Arts, University of Calgary, Calgary, AB, Canada
| | - Filomeno Cortese
- Department of Radiology, Cumming School of Medicine, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 4N1, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Charlene Wright
- Child and Adolescent Imaging Research (CAIR) Program, University of Calgary, Calgary, AB, Canada
| | - Kara Murias
- Department of Clinical Neuroscience, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Paediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Deborah Dewey
- Department of Paediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.,Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Andrea B Protzner
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.,The Mathison Centre for Mental Health Research and Education, University of Calgary, Calgary, AB, Canada.,Department of Psychology, Faculty of Arts, University of Calgary, Calgary, AB, Canada
| | - Adam McCrimmon
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,Werklund School of Education, University of Calgary, Calgary, AB, Canada
| | - Signe Bray
- Department of Radiology, Cumming School of Medicine, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 4N1, Canada.,Child and Adolescent Imaging Research (CAIR) Program, University of Calgary, Calgary, AB, Canada.,Department of Paediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Ashley D Harris
- Department of Radiology, Cumming School of Medicine, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 4N1, Canada.,Child and Adolescent Imaging Research (CAIR) Program, University of Calgary, Calgary, AB, Canada.,Department of Paediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
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6
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Vallinoja J, Jaatela J, Nurmi T, Piitulainen H. Gating Patterns to Proprioceptive Stimulation in Various Cortical Areas: An MEG Study in Children and Adults using Spatial ICA. Cereb Cortex 2021; 31:1523-1537. [PMID: 33140082 PMCID: PMC7869097 DOI: 10.1093/cercor/bhaa306] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 09/16/2020] [Accepted: 09/16/2020] [Indexed: 12/16/2022] Open
Abstract
Proprioceptive paired-stimulus paradigm was used for 30 children (10-17 years) and 21 adult (25-45 years) volunteers in magnetoencephalography (MEG). Their right index finger was moved twice with 500-ms interval every 4 ± 25 s (repeated 100 times) using a pneumatic-movement actuator. Spatial-independent component analysis (ICA) was applied to identify stimulus-related components from MEG cortical responses. Clustering was used to identify spatiotemporally consistent components across subjects. We found a consistent primary response in the primary somatosensory (SI) cortex with similar gating ratios of 0.72 and 0.69 for the children and adults, respectively. Secondary responses with similar transient gating behavior were centered bilaterally in proximity of the lateral sulcus. Delayed and prolonged responses with strong gating were found in the frontal and parietal cortices possibly corresponding to larger processing network of somatosensory afference. No significant correlation between age and gating ratio was found. We confirmed that cortical gating to proprioceptive stimuli is comparable to other somatosensory and auditory domains, and between children and adults. Gating occurred broadly beyond SI cortex. Spatial ICA revealed several consistent response patterns in various cortical regions which would have been challenging to detect with more commonly applied equivalent current dipole or distributed source estimates.
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Affiliation(s)
- Jaakko Vallinoja
- Department of Neuroscience and Biomedical Engineering, Aalto University School of Science, 00076 Espoo, Finland
| | - Julia Jaatela
- Department of Neuroscience and Biomedical Engineering, Aalto University School of Science, 00076 Espoo, Finland
| | - Timo Nurmi
- Department of Neuroscience and Biomedical Engineering, Aalto University School of Science, 00076 Espoo, Finland
- Faculty of Sport and Health Sciences, University of Jyväskylä, FI-40014 Jyväskylä, Finland
| | - Harri Piitulainen
- Department of Neuroscience and Biomedical Engineering, Aalto University School of Science, 00076 Espoo, Finland
- Faculty of Sport and Health Sciences, University of Jyväskylä, FI-40014 Jyväskylä, Finland
- Aalto NeuroImaging, MEG Core, Aalto University School of Science, 00076 Espoo, Finland
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7
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Vandewouw MM, Dunkley BT, Lerch JP, Anagnostou E, Taylor MJ. Characterizing Inscapes and resting-state in MEG: Effects in typical and atypical development. Neuroimage 2020; 225:117524. [PMID: 33147510 DOI: 10.1016/j.neuroimage.2020.117524] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/26/2020] [Accepted: 10/28/2020] [Indexed: 12/12/2022] Open
Abstract
Examining the brain at rest is a powerful approach used to understand the intrinsic properties of typical and disordered human brain function, yet task-free paradigms are associated with greater head motion, particularly in young and/or clinical populations such as autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD). Inscapes, a non-social and non-verbal movie paradigm, has been introduced to increase attention, thus mitigating head motion, while reducing the task-induced activations found during typical movie watching. Inscapes has not yet been validated for use in magnetoencephalography (MEG), and it has yet to be shown whether its effects are stable in clinical populations. Across typically developing (N = 32) children and adolescents and those with ASD (N = 46) and ADHD (N = 42), we demonstrate that head motion is reduced during Inscapes. Due to the task state evoked by movie paradigms, we also expectedly observed concomitant modulations in local neural activity (oscillatory power) and functional connectivity (phase and envelope coupling) in intrinsic resting-state networks and across the frequency spectra compared to a fixation cross resting-state. Increases in local activity were accompanied by decreases in low-frequency connectivity within and between resting-state networks, primarily the visual network, suggesting that task-state evoked by Inscapes moderates ongoing and spontaneous cortical inhibition that forms the idling intrinsic networks found during a fixation cross resting-state. Importantly, these effects were similar in ASD and ADHD, making Inscapes a well-suited advancement for investigations of resting brain function in young and clinical populations.
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Affiliation(s)
- Marlee M Vandewouw
- Department of Diagnostic Imaging, Hospital for Sick Children, 555 University Ave, Toronto, ON M5G 1X8, Canada; Program in Neurosciences and Mental Health, Hospital for Sick Children, Toronto, Canada; Autism Research Centre, Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada; Institute of Biomedical Engineering, University of Toronto, Toronto, Canada.
| | - Benjamin T Dunkley
- Department of Diagnostic Imaging, Hospital for Sick Children, 555 University Ave, Toronto, ON M5G 1X8, Canada; Program in Neurosciences and Mental Health, Hospital for Sick Children, Toronto, Canada; Department of Medical Imaging, University of Toronto, Toronto, Canada
| | - Jason P Lerch
- Program in Neurosciences and Mental Health, Hospital for Sick Children, Toronto, Canada; Department of Medical Biophysics, University of Toronto, Toronto, Canada; Wellcome Centre for Integrative Neuroimaging, FMRIB, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
| | - Evdokia Anagnostou
- Program in Neurosciences and Mental Health, Hospital for Sick Children, Toronto, Canada; Autism Research Centre, Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada
| | - Margot J Taylor
- Department of Diagnostic Imaging, Hospital for Sick Children, 555 University Ave, Toronto, ON M5G 1X8, Canada; Program in Neurosciences and Mental Health, Hospital for Sick Children, Toronto, Canada; Department of Medical Imaging, University of Toronto, Toronto, Canada; Department of Psychology, University of Toronto, Toronto, Canada
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