Visual detection is gated by attending for action: evidence from hemispatial neglect.
Visual detection is gated by attending for action: evidence from hemispatial neglect.
复制标题
视觉检测是通过关注行动来控制的：来自半侧空间忽视的证据。
DOI：
10.1073/pnas.252309099
复制
发表时间：
2002
影响因子：
11.1
通讯作者：
Ward,Robert
中科院分区：
文献类型：
--
作者：
Rafal,Robert;Danziger,Shai;Grossi,Giordana;Machado,Liana;Ward,Robert
We report observations in patients with visual extinction demonstrating that detection of visual events is gated by attention at the level of processing at which a stimulus is selected for action. In one experiment, three patients reported the identity of numerical words and digits presented either in the ipsilesional field, the contralesional field, or both fields. On the critical bilateral trials, extinction was greater when the competing items shared the same meaning and response, regardless of whether the items were visually different (e.g., ONE + 1), or identical (e.g., 1 + 1). A fourth patient was tested in a second experiment in which the competing items on bilateral trials were either different (e.g., ONE + TWO), identical (e.g., ONE + ONE) or homophones that were visually and semantically different but shared the same response (e.g., ONE + WON). Homophones and identical items caused similar extinction with less extinction occurring on different item trials.
