Functional Equivalence of Imagined vs. Real Performance of an Inhibitory Task: An EEG/ERP Study
Title: | Functional Equivalence of Imagined vs. Real Performance of an Inhibitory Task: An EEG/ERP Study
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Author: | Galdo Álvarez, Santiago
Bonilla Carreño, Fidel Mauricio
González Villar, Alberto Jacobo
Carrillo de la Peña, María Teresa
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Affiliation: | Universidade de Santiago de Compostela. Departamento de Psicoloxía Clínica e Psicobioloxía
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Subject: | Functional equivalence | Inhibition | Stop-signal task | Motor imagery | ERPs | Time-frequency EEG analyses | |
Date of Issue: | 2016-09-16
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Publisher: | Frontiers Media
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Citation: | Galdo-Alvarez S, Bonilla FM, González-Villar AJ and Carrillo-de-la-Peña MT (2016) Functional Equivalence of Imagined vs. Real Performance of an Inhibitory Task: An EEG/ERP Study. Front. Hum. Neurosci. 10:467. doi: 10.3389/fnhum.2016.00467
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Abstract: | Early neuroimaging and electrophysiological studies suggested that motor imagery
recruited a different network than motor execution. However, several studies have
provided evidence for the involvement of the same circuits in motor imagery tasks, in
the absence of overt responses. The present study aimed to test whether imagined
performance of a stop-signal task produces a similar pattern of motor-related EEG
activity than that observed during real performance. To this end, mu and beta eventrelated
desynchronization (ERD) and the Lateralized Readiness Potential (LRP) were
analyzed. The study also aimed to clarify the functional significance of the Stop-N2
and Stop-P3 event-related potential (ERPs) components, which were also obtained
during both real and imagined performance. The results showed a common pattern
of brain electrical activity, and with a similar time course, during covert performance and
overt execution of the stop-signal task: presence of LRP and Stop-P3 in the imagined
condition and identical LRP onset, and similar mu and beta ERD temporal windows
for both conditions. These findings suggest that a similar inhibitory network may be
activated during both overt and covert execution of the task. Therefore, motor imagery
may be useful to improve inhibitory skills and to develop new communicating systems
for Brain-Computer Interface (BCI) devices based on inhibitory signals |
Publisher version: | https://doi.org/10.3389/fnhum.2016.00467 |
URI: | http://hdl.handle.net/10347/16322
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E-ISSN: | 1662-5161
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Rights: | Copyright © 2016 Galdo-Alvarez et al. This is an openaccess article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms
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