Experimental setup and instrumentation for measurement and preprocessing of EEG during voluntary goal-directed movements.

R Draganova, D Popivanov
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引用次数: 0

Abstract

The widely used practice in the study of human complex voluntary movement organization is to record, measure and analyze EEG activity covering the period of both motor preparation and performance. The main strategy is to reveal EEG characteristics related to both cognitive and motor aspects of the action. To this end a special-purpose experimental set-ups are required providing precise enough measure of timing and characteristics of the movement in order to synchronize EEG changes time-locked to the phases of task performance. We describe an experimental set-up including a special-purpose device, which was designed for study of slow, continuous goal-directed movements. The implementation was aimed to provide (i) performance of complicated enough task in order to force the subject to concentrate his mental activity predominantly on the task; (ii) to control the successive stages of task performance. The advantages of the presented instrumentation was demonstrated by comparing power spectra of EEG segments long before and immediately prior to the movement performance. The instrumentation is flexible enough to be used in a large scale psychophysiological experiments.

自主目标运动时脑电测量与预处理的实验装置与仪器。
在人类复杂自主运动组织的研究中,广泛采用的方法是记录、测量和分析包括运动准备和运动表现两个阶段的脑电活动。主要策略是揭示与动作的认知和运动方面相关的脑电图特征。为此,需要一个特殊目的的实验装置,提供足够精确的运动时间和特征测量,以便同步脑电图变化,时间锁定到任务执行的阶段。我们描述了一个实验装置,包括一个特殊用途的设备,这是专为研究缓慢的,连续的目标导向运动。实施的目的是提供(i)执行足够复杂的任务,以迫使受试者将其精神活动主要集中在任务上;(ii)控制任务执行的连续阶段。通过比较运动前和运动前的脑电信号功率谱,证明了该仪器的优越性。该仪器具有足够的灵活性,可用于大规模的心理生理学实验。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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