Stimulus-dependent deliberation process leading to a specific motor action demonstrated via a multi-channel EEG analysis

Frontiers in Human Neuroscience

Jana eWerner¹  Dieter Friedhelm Kutz¹  Florian Peter Kolb¹  Sonja eHenz¹  Julian eNida-Ruemelin²  Walter eHuerster³ 

[1] Institute of Physiology, Physiological Genomics, University of Munich;Ludwig-Maximilians-University, Munich;Research and Consulting;

关键词: high density EEG;    free will;    Libet;    deliberation;    movement intention;    readiness potential;   

DOI  :  10.3389/fnhum.2015.00355

来源: DOAJ

【 摘 要 】

The aim of the study was to determine whether a deliberative process, leading to a motor action, is detectable in high density EEG recordings. Subjects were required to press one of two buttons. In a simple motor task the subject knew which button to press, whilst in a color-word Stroop task subjects had to press the right button with the right index finger when meaning and color coincided, or the left button with the left index finger when meaning and color were disparate.EEG recordings obtained during the simple motor task showed a sequence of positive (P) and negative (N) cortical potentials (P1-N1-P2) which are assumed to be related to the processing of the movement.The sequence of cortical potentials was similar in EEG recordings of subjects having to deliberate over how to respond, but the above sequence (P1-N1-P2) was preceded by slowly increasing negativity (N0), with N0 being assumed to represent the end of the deliberation process.Our data suggest the existence of neurophysiological correlates of deliberative processes.

【 授权许可】

Unknown