The early facilitatory effect of a peripheral spatially noninformative prime stimulus depends on target stimulus features

Brazilian Journal of Medical and Biological Research

E.l. Azevedo¹  S.a.f. Squella¹  L.e. Ribeiro-do-valle¹ 

[1] ,Universidade de São Paulo Instituto de Ciências Biomédicas Departamento de Fisiologia e BiofísicaSão Paulo SP ,Brasil

关键词: priming;    attention;    forward masking;    vision;    reaction time;   

DOI  :  10.1590/S0100-879X2001000600017

来源: SciELO

【 摘 要 】

We investigated the dependency of the early facilitatory effect of a prime stimulus (S1) on the physical characteristics of the target stimulus (S2). A go-no go reaction time paradigm was used. The S1 was a gray ring and the S2s were a white vertical line, a white horizontal line, a white cross and a white small ring, all inside a white ring with the same dimensions as the S1. S1 onset-S2 onset asynchrony was 100 ms. The stimuli appeared randomly in any one of the quadrants of a monitor screen. The S2 could occur at the same position as the S1 or at a different one. We observed a strong facilitatory effect when the vertical line or the horizontal line was the go stimulus and no effect when the cross was the go stimulus. These results show that the features of the target stimulus can be decisive for the appearance of the facilitatory effect of a peripheral spatially noninformative prime stimulus.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License