Visuell evozierte Potenziale und Elektroretinogramm

Bach, Michael; Haarmeier, Thomas; Dichgans, J.

doi:10.1007/3-540-26659-3_3

Cited by 1 publication

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References 342 publications

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“…The deliberative element of decision in this study was realized as a required evaluation of short-lasting visual stimuli leading to a decision for releasing adequate motor commands. The latencies of the field-size-dependent checkerboard-evoked VEP were within the clinically typical range including side difference (95–115 ms Bach et al, 2005 ). The neurophysiological correlates of the deliberative element preceded the decision to act and both precede the final motor act.…”

Section: Discussionmentioning

confidence: 67%

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

Henz

Kutz

Werner

et al. 2015

Front. Hum. Neurosci.

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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.

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Section: Discussionmentioning

confidence: 67%