1. Cerebral Dynamics during the Observation of Point-Light Displays Depicting Postural Adjustments
- Author
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Thierry Pozzo, Ghislain Saunier, Daniel Fraiman, Eduardo F. Martins, Claudia D. Vargas, Thiago Lemos, Laboratório de Neurobiologia II - UFRJ [Universidade de Rio de Janeiro - Brésil], Universidade Federal do Rio de Janeiro [Rio de Janeiro] ( UFRJ ), Programa de Pós-graduação em Ciências da Reabilitação, Centro Universitário Augusto Motta, Centro Universitário Augusto Motta ( UNISUAM ), Laboratorio Cognicao Motora, Federal University of Para - Universidade Federal do Para [Belem - Brésil], Cognition, Action, et Plasticité Sensorimotrice [Dijon - U1093] ( CAPS ), Université de Bourgogne ( UB ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Consejo Nacional de Investigaciones Científicas y Técnicas ( CONICET ), Laboratorio de Investigación en Neurociencia, Departamento de Matemática y Ciencias [Universidad de San Andrés, Buenos Aires], Universidad de San Andres, Conselho Nacional de Desenvolvimento Cientlfico e Tecnologico CNPq 306817/2014-4 480108/2012-9 Fundacao Carlos Chagas Filho de Amparo Pesquisa do Estado do Rio de Janeiro FAPERJ E-26/110.526/2012 E-26/010.002902/2014 Financiadora de Estudos e Projetos FINEP (PROINFRA HOSPITALAR) 18.569-8 Fundayao de Amparo Pesquisa do Estado de Sao Paulo FAPESP's Research, Innovation and Dissemination Center for Neuromathematics-NeuroMat (PAPESP) 2013/07699-0 CAPES-COFECUB 819-14, Laboratório de Neurobiologia II - IBCCF / UFRJ [Rio de Janeiro], Instituto de Biofísica Carlos Chagas Filho [Rio de Janeiro] (IBCCF / UFRJ), Universidade Federal do Rio de Janeiro (UFRJ)-Universidade Federal do Rio de Janeiro (UFRJ), Centro Universitário Augusto Motta (UNISUAM), Cognition, Action, et Plasticité Sensorimotrice [Dijon - U1093] (CAPS), Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM), Consejo Nacional de Investigaciones Científicas y Técnicas [Buenos Aires] (CONICET), and Universidad Mayor de San Andrés (UMSA)
- Subjects
Ciencias Físicas ,biological motion perception ,Electroencephalography ,action observation ,neural mechanisms ,event-related potentials ,purl.org/becyt/ford/1 [https] ,Behavioral Neuroscience ,0302 clinical medicine ,brain activity ,SUPERIOR TEMPORAL SULCUS ,Postural Balance ,visual-perception ,body sway ,POINT-LIGHT DISPLAY ,Original Research ,medicine.diagnostic_test ,semantic integration ,05 social sciences ,Cognition ,Superior temporal sulcus ,Psychiatry and Mental health ,Neuropsychology and Physiological Psychology ,ACTION OBSERVATION ,Neurology ,BALANCE ,QUIET ,ELECTROENCEPHALOGRAPHY ,[SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC] ,recognition ,Psychology ,superior temporal sulcus ,CIENCIAS NATURALES Y EXACTAS ,electroencephalography ,medicine.medical_specialty ,Otras Ciencias Físicas ,050105 experimental psychology ,lcsh:RC321-571 ,03 medical and health sciences ,Physical medicine and rehabilitation ,motor imagery ,medicine ,0501 psychology and cognitive sciences ,lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry ,Biological Psychiatry ,Balance (ability) ,Communication ,business.industry ,balance ,purl.org/becyt/ford/1.3 [https] ,point-light display ,[ SDV.NEU ] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC] ,business ,030217 neurology & neurosurgery ,Neuroscience ,Biological motion ,Coding (social sciences) ,real-world events - Abstract
Objective: As highly social creatures, human beings rely part of their skills of identifying, interpreting, and predicting the actions of others on the ability of perceiving biological motion. In the present study, we aim to investigate the electroencephalographic (EEG) cerebral dynamics involved in the coding of postural control and examine whether upright stance would be codified through the activation of the temporal-parietal cortical network classically enrolled in the coding of biological motion. Design: We registered the EEG activity of 12 volunteers while they passively watched point light displays (PLD) depicting quiet stable (QB) and an unstable (UB) postural situations and their respective scrambled controls (QS and US). In a pretest, 13 volunteers evaluated the level of stability of our two biological stimuli through a stability scale. Results: Contrasting QB vs. QS revealed a typical ERP difference in the right temporal-parietal region at an early 200–300 ms time window. Furthermore, when contrasting the two biological postural conditions, UBvs. QB, we found a higher positivity in the 400–600 ms time window for the UB condition in central-parietal electrodes, lateralized to the right hemisphere. Conclusions: These results suggest that PLDs depicting postural adjustments are coded in the brain as biological motion, and that their viewing recruit similar networks with those engaged in postural stability control. Additionally, higher order cognitive processes appear to be engaged in the identification of the postural instability level. Disentangling the EEG dynamics during the observation of postural adjustments could be very useful for further understanding the neural mechanisms underlying postural control. Fil: Martins, Eduardo F.. Universidade Federal Do Rio de Janeiro. Instituto de Biología; Brasil Fil: Lemos, Thiago. Universidade Federal Do Rio de Janeiro. Instituto de Biología; Brasil Fil: Saunier, Ghislain. Universidade Federal do Pará; Brasil Fil: Pozzo, Thierry. Universite de Bourgogne; Francia Fil: Fraiman Borrazás, Daniel Edmundo. Universidad de San Andrés. Departamento de Matemáticas y Ciencias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Vargas, Claudia D.. Universidade Federal Do Rio de Janeiro. Instituto de Biología; Brasil
- Published
- 2017
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