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  • Title: [The effect of masking in the human subject on the solving of a visual-spatial task].
    Author: Reshchikova TN, Pogrebinskiĭ SA, Miamlin VV.
    Journal: Zh Vyssh Nerv Deiat Im I P Pavlova; 1988; 38(2):219-24. PubMed ID: 3400317.
    Abstract:
    Images of two fragments of regular geometrical figures (square, triangle etc.) have been presented to 58 healthy persons successively with intervals of 20, 80, 120 and 380 ms. The subject must compare these fragments mentally, decide whether they form the standard figure and press a button by the right or left hand according to the instruction. At presentation of both fragments in one visual field, left or right, the number of correct responses is greater when they form the figure. The greater the interstimulus intervals, the greater the number of correct responses to stimuli forming and not forming the standard figure. At presentation of fragments in different visual fields, the number of correct decisions is the same, independently from forming the standard figure. The reaction time is shorter when exposing fragments forming the figure, independently from the way of their presentation; with prolongation of interstimulus intervals the reaction time decreases in all cases. The number of correct decisions is greater and the reaction time is shorter when the stimuli are presented in different visual fields.
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