目标预知对类别可分离方向目标视觉搜索的影响。
The effect of target foreknowledge on visual search for categorically separable orientation targets.
作者信息
Hodsoll J P, Humphreys G W
机构信息
Department of Psychology, Behavioural Brain Science Centre, School of Psychology, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
出版信息
Vision Res. 2005 Aug;45(18):2346-51. doi: 10.1016/j.visres.2005.03.017.
This research note assesses the role of target foreknowledge in visual search for categorically defined orientation targets, as first described by Wolfe et al. [Wolfe, J. M., Friedman-Hill, S. R., Stewart, M. I., & O'Connell, K. M. (1992). The role of categorisation in visual search for orientation. Journal of Experimental Psychology: Human Perception and Performance, 18, 34-49]. We compared search with known versus unknown (respond to the odd item) targets. An RT advantage for categorical search only emerged with known targets. The evidence points to an important role for top-down processes in search for categorically--defined orientation targets.
本研究报告评估了目标预知在视觉搜索分类定义的方向目标中的作用，这一作用最早由沃尔夫等人进行了描述[沃尔夫，J.M.，弗里德曼-希尔，S.R.，斯图尔特，M.I.，&奥康奈尔，K.M.（1992年）。分类在视觉搜索方向中的作用。《实验心理学杂志：人类知觉与表现》，18，34-49]。我们比较了已知目标与未知目标（对奇数项做出反应）的搜索情况。只有在已知目标的情况下，分类搜索的反应时优势才会出现。证据表明自上而下的加工过程在搜索分类定义的方向目标中起着重要作用。
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