Predicting Upcoming Events Occurring in the Space Surrounding the Hand
| Autor: | Jose M. Oliveira, Erika de Carvalho Rodrigues, Antonio Galves, Claudia D. Vargas, Maria Luíza Rangel, Michelle Ferreira Miranda, Lidiane Souza |
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| Rok vydání: | 2020 |
| Předmět: |
Adult
Male medicine.medical_specialty Article Subject Movement NEUROCIÊNCIAS Neurosciences. Biological psychiatry. Neuropsychiatry Electroencephalography Space (commercial competition) 050105 experimental psychology 03 medical and health sciences Young Adult 0302 clinical medicine Physical medicine and rehabilitation medicine Humans 0501 psychology and cognitive sciences Sensorimotor cortex Brain Mapping medicine.diagnostic_test Hand Strength Movement (music) 05 social sciences Perspective (graphical) Healthy subjects Hand Anticipation Neurology Touch Perception Touch Space Perception Action observation Female Neurology (clinical) Sensorimotor Cortex Psychology 030217 neurology & neurosurgery RC321-571 Research Article |
| Zdroj: | Neural Plasticity Neural Plasticity, Vol 2021 (2021) Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 1687-5443 |
| Popis: | Predicting upcoming sensorimotor events means creating forward estimates of the body and the surrounding world. This ability is a fundamental aspect of skilled motor behavior and requires an accurate and constantly updated representation of the body and the environment. To test whether these prediction mechanisms could be affected by a peripheral injury, we employed an action observation and electroencephalogram (EEG) paradigm to assess the occurrence of prediction markers in anticipation of observed sensorimotor events in healthy and brachial plexus injury (BPI) participants. Nine healthy subjects and six BPI patients watched a series of video clips showing an actor’s hand and a colored ball in an egocentric perspective. The color of the ball indicated whether the hand would grasp it (hand movement), or the ball would roll toward the hand and touch it (ball movement), or no event would occur (no movement). In healthy participants, we expected to find distinct electroencephalographic activation patterns (EEG signatures) specific to the prediction of the occurrence of each of these situations. Cluster analysis from EEG signals recorded from electrodes placed over the sensorimotor cortex of control participants showed that predicting either an upcoming hand movement or the occurrence of a tactile event yielded specific neural signatures. In BPI participants, the EEG signals from the sensorimotor cortex contralateral to the dominant hand in the hand movement condition were different compared to the other conditions. Furthermore, there were no differences between ball movement and no movement conditions in the sensorimotor cortex contralateral to the dominant hand, suggesting that BPI blurred specifically the ability to predict upcoming tactile events for the dominant hand. These results highlight the role of the sensorimotor cortex in creating estimates of both actions and tactile interactions in the space around the body and suggest plastic effects on prediction coding following peripheral sensorimotor loss. |
| Databáze: | OpenAIRE |
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