Acoustic Neurofeedback Increases Beta ERD During Mental Rotation Task
Ładowanie...
Data
2018
Inny tytuł
Typ
Artykuł recenzyjny
Redaktor
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Dyscyplina PBN
Psychologia
Czasopismo lub seria
Applied Psychophysiology and Biofeedback
ISSN
1090-0586
1573-3270
1573-3270
ISBN
DOI
10.1007/s10484-018-9426-0
Strona internetowa
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Wydanie
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Strony od-do
Tytuł monografii
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Tytuł tomu
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Abstrakt (en)
The purpose of the present study was to identify the effect of acoustic neurofeedback on brain activity during consecutive stages of mental rotation of 3D objects. Given the fact that the process of mental rotation of objects is associated with desynchronisation of beta rhythm (beta ERD), it was expected that suppression in this band would be greater in the experimental group than in the controls. Thirty-three participants were randomly allocated to two groups performing the classic Shepard-Metzler mental rotation task (1971). The experimental group received auditory stimuli when the level of concentration fell below the threshold value determined separately for each participant based on the engagement index [β/(α + Θ)]. The level of concentration in the control group was not stimulated. Compared to the controls, the experimental group was found with greater beta-band suppression recorded above the left parietal cortex during the early stage and above the right parietal cortex during the late stage of mental rotation task. At the late stage of mental rotation, only the experimental group was found with differences in beta ERD related to varied degrees of the rotation angle and the control condition (zero angles, no rotation) recorded above the right parietal cortex and the central area of cerebral cortex. The present findings suggest that acoustic feedback might improve the process of mental rotation.