Attentional Capture Based on the Non-Spatial Properties of Cue, Tomoki Ohashi (JSPS Research Fellow, Tohoku University)

概要:

Most of the studies on visual attention using the cueing paradigm have examined the influence of spatial relationships between cues and targets on the target processing. In the present study, the congruity of non-spatial properties (colors) between cues and targets was incorporated to the general cueing procedure and three steps of the cue lead time (CLT) were provided in order to investigate the dynamic characteristics of the visual attention affected by the spatial and the non-spatial stimulus information. The probability of the non-spatial (color) congruity between cues and targets was set at 50%. In spite of the equal probability, the facilitation of the RT was found on the color congruity condition, and the inhibition was revealed on the incongruity condition. These results suggested that visual attention could be captured by the non-spatial property of the stimulus. By the cost-benefit analysis, it was found that the inhibitory effect was larger than the facilitation effect and more rapidly decreased with the increase of CLT. Furthermore, the results indicated that the attentional capture by the non-spatial property occurred only when the cue and the target had the spatial congruity.

visual attention (視覚的注意), cueing paradigm (手がかり提示課題), non-spatial property (非空間属性), attentional capture (注意捕捉), discrimination reaction time (弁別反応時間)

手がかり刺激の非空間的属性にもとづく
視覚的注意捕捉

大橋 智樹