Neglect as a disorder of prior probability

被引：3

作者：

Anderson, Britt ^{[1
]}

机构：

[1] Brown Univ, Dept Neurosci, Providence, RI 02912 USA

来源：

NEUROPSYCHOLOGIA | 2008年 / 46卷 / 05期

关键词：

spatial neglect; Bayesian probability;

D O I：

10.1016/j.neuropsychologia.2007.12.006

中图分类号：

B84 [心理学]; C [社会科学总论]; Q98 [人类学];

学科分类号：

03 ; 0303 ; 030303 ; 04 ; 0402 ;

摘要：

Subjects with spatial neglect are slower and more variable in detecting visual targets, especially on the side opposite their brain injuries. These deficits can be seen by plotting cumulative distribution functions (CDF) of response times (RT). I demonstrate that dividing RT's by their means normalizes the RT CDF's of neglect subjects. The motivation for this transformation comes from Carpenter's LATER model [Carpenter, R. H. S., & Williams, M. L. L. (1995). Neural computation of log likelihood in control of saccadic eye movements. Nature, 377, 59-62]. The most direct interpretation of this result is that some symptoms of neglect reflect abnormal estimates of stimulus prior probability. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：1566 / 1569

页数：4

共 18 条

[1] Variability not ability: another basis for performance decrements in neglect [J].