본 연구는 인물 사진자극에 대한 시각반응시간(VRT)에서 나타나는 남녀 간의 성차에 대해 알아보고자 했다. 그리고 시각반응시간의 차이가 성적 선호를 판별할 수 있는지를 살펴보았다. 따라서 본 연구는 이성애자라고 스스로 밝힌 대학생 90명(남 42명, 여 50명, 연령 M=18.74, SD=.92)을 대상으로 수행되었다. 연구에 사용된 사진 자극은 각각 12개의 남성, 여성, 남아, 여아 사진이고 중성 사진 8개로 총 56개의 사진이 사용되었다. 참가자들이 각 사진 자극에 성적매력도를 평가하는 동안 각 사진을 보는 시간이 은밀하게 측정되었다. 본 연구의 결과에 의하면, 남녀 모두 시각적 자극에 반응하는 시간에서 범주적인 차별성을 보였다는 점이다. 그리고 남성은 동성사진에 비해 이성사진을 유의미하게 더 오래 보았지만, 여성은 동성사진과 이성사진의 반응시간에 있어서 유의미한 차이가 없었다. 아울러 남성은 성인사진을 아동사진에 비해 유의미하게 더 오래 보았지만, 여성은 이 차이가 유의미하지 않았다. 남성은 여성에 비해 이성사진을 유의미하게 더 오래 보았지만, 반면에 여성은 남성에 비해 동성사진을 더 오래 보았다. 사진을 보는 데 있어서 심리적 편안함을 평가하는 데 있어서 여성이 모든 인물 사진 유형에 대해서 남성에 비해 유의미하게 더 편안함을 보고했다. 마지막으로 시각반응시간과 자기보고 된 성적 매력도 평가 간에 유의미한 정적 상관관계를 보였다.
The present study assessed visual reaction time as a measure of sexual interest in self-identified heterosexual men and women. Data collected from 92 college students(42 males and 50 females; age M=18.74, SD=.92). Participants rated sexual attractiveness of each picture while the length of time they spent time each picture was unobtrusively measured. According to the results, there is sex difference of visual reaction time on picture types. Men viewed opposite sex pictures significantly longer than same sex pictures, while there is no significant difference for women. Men viewed adult pictures significantly longer than child pictures, while there is no significant difference for women. Men viewed opposite sex pictures significantly longer than did women. Women viewed same sex pictures significantly longer than did men. Ratings of sexual attractiveness and visual reaction time were positively correlated. Women reported significantly more psychological comfort while they looked at each picture than did men.
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