EEG Correlates of Decision-Making and Preparation of Saccades in Human

International Journal of Psychology. 2014. Vol. 1. No. 1. P. 68–73.

Moiseeva V., Slavutskaya M., Kotenev A., Karelin S., Shulgovskiy V.

A modificated version of experimental   scheme "double step" was used to study the decision- making process in saccade programming. Two short visual    stimuli were presented sequentially in opposite hemifields    (scheme pulse overshoot). The “pattern” of response    (double saccade or single saccade at the second target) and    latency of the first saccade depended on the duration of    the first stimulus (150 or 50 ms). Positive ERP components    were revealed within the interval 100 - 120 ms before    the saccade onset by using the method of selective EEG    averaging. These potentials can be considered as markers    of the decision-making process. The parameters and    topography of these components indicate involvement of    the frontal-parietal neural network of saccadic control and    frontal-parietal-and medial-thalamic activation systems of    selective attention at the stage of decision-making process.

Keywords: decision-making, принятие решения, вызванные потенциалы, ERPs, positive component, saccade programming, позитивный компонент, саккадические движения глаз