ИСТИНА

The stimulus choice as a saccadic target for the directed movement includes inhibition of other possible answers, insignificant in a situation of current behavior. The aim of this study was to estimate dependence of saccadic latency during stimulation of the dominant and subdominant eye in various conditions of presentation of target and distracting stimuli. 13 healthy subjects participated in the experiment. In 70% of cases under identical conditions of stimulation saccade latency was shorter at the presentation of stimuli to the dominant eye (р<0.05). Saccade latency of correctly executed saccades increased when the distance between target and distracting stimuli reduced and reached a maximum (near 242 мs) when stimuli were shown in different visual semifields. Minimum of saccade latency was near 208 ms, when stimuli were presented in one visual semifield at the distance 5 degrees each from other. But the quantity of errors in this case increased to 60 % when the subjects can't inhibit saccades on distracting stimulus. The results specify that saccadic latency depends first of all on the brain hemisphere where primary visual information on stimulus comes. The leading role of the right hemisphere responsible for spatial attention in a situation of a visual choice is supposed