Effect of handedness on response inhibition: fMRI  study

Marakshina, J.; Buldakova, N.; Korotkova, A.; Vartanov, A.; Kozlovskiy, S.; Shirenova, S.; Kiselnikov, A.; Popov, V.; Baev, A.

Авторы: Julia Marakshina, Natalia Buldakova, Anna Korotkova, Alexander Vartanov, Stanislav Kozlovskiy, Sophie Shirenova, Andrey Kiselnikov, Vladimir Popov, Alexander Baev
Журнал: European Proceedings of Social and Behavioural Sciences
Год издания: 2017
Издательство: Future Academy
Местоположение издательства: online
Первая страница: 248
Последняя страница: 255
DOI: 10.15405/epsbs.2017.12.24
Аннотация: Response inhibition one of the crucial cognitive functions in humans. Neuroimaging studies revealed the critical role of the right presupplementary motor area and the right anterior cingulate cortex in response inhibition. These data were obtained mostly on right-handers; however, lateralization of this function could be related to manual lateral asymmetry in humans. We compared brain areas involved in simple response inhibition tasks performance (rings and letters were used as visual stimuli) and differences in the activated brain structures between groups of participants with different types of motor asymmetry by fMRI. 29 participants (23 right-handers and 6 left-handers) performed Go/NoGo task and Stop-signal task. In Go/NoGo task the participants had to ignore specific non-verbal stimuli (red rings). In Stop-signal task the participants had to ignore specific verbal stimuli (red letters). Results showed increased activation of the right cerebellar hemisphere only for right-handers in comparison with lefthanders in Stop-signal task. Within-group analysis in the left-handers group revealed activation of the fusiform gyrus and the BA19 during Go/NoGo task in comparison with Stop-signal task. Significant differences have been demonstrated between right-handers and left-handers in simple response inhibition tasks which involve verbal stimuli processing. The right cerebellum structures have been activated during verbal information processing in right-handers in Stop-signal-task.
Добавил в систему: Козловский Станислав Александрович

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Effect of handedness on response inhibition: fMRI studyстатья Исследовательская статья

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