Flanker任务中的朝向偏好效应Flanker任务中的朝向偏好效应.pdf

Advances in Psychology 心理学进展, 2015, 5(11), 709-715 Published Online November 2015 in Hans. /journal/ap /10.12677/ap.2015.511092 Orientation Preferences Effect in the Flanker Task Shenli Peng, Xiao Zhang Faculty of Psychology, Southwest University, Chongqing th th th Received: Nov. 5 , 2015; accepted: Nov. 24 , 2015; published: Nov. 30 , 2015 Copyright © 2015 by authors and Hans Publishers Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). /licenses/by/4.0/ Abstract This study explored the effects of target stimulus orientation, and consistency on orientation be- tween target and distraction stimulus on individuals’ cognitive conflict performance through an arrow Flanker task. Repeated ANOVA and simple effect analysis on the RTs data show that: 1) when orientation of target and distraction stimulus is consistent, performance is significantly better than inconsistent condition (F(1,43) = 505.250, p 0.001), referring to a Flanker effect; 2) when target stimulus is right-oriented, performance is significantly better than that when left- oriented (F(1,43) = 19.515, p 0.001); 3) performances on the four different conditions are sig- nificantly differentiated to each other: RT (rrrrr) RT (lllll) RT (llrll) RT (rrlrr). The present study found an orientation preference effect in Flanker task; that is to say, right-oriented stimuli induce a significantly faster response than left-oriented stimuli. Further researches will focus on exploring the underlying brain mechanism of this orientation preference, and its potential evolu- tionary sense. Keywords