理解模糊图片时的半球资源限制。

Hemispheric resource limitations in comprehending ambiguous pictures.

作者信息

White H, Minor S W

机构信息

Psychology Department, Western Carolina University, Cullowhee, NC 28723.

出版信息

Brain Cogn. 1990 Mar;12(2):182-94. doi: 10.1016/0278-2626(90)90014-f.

DOI:10.1016/0278-2626(90)90014-f

PMID:2340150

Abstract

Ambiguous pictures (Roschach inkblots) were lateralized for 100 msec vs. 200 msec to the right and left hemispheres (RH and LH) of 32 normal right-handed males who determined which of two previously presented words (an accurate or inaccurate one) better described the inkblot. Over the first 32 trials, subjects receiving each stimulus exposure duration were less accurate when the hemisphere receiving the stimulus also controlled the hand used to register a keypress response (RH-left hand and LH-right hand trials) than when hemispheric resources were shared, i.e., when one hemisphere controlled stimulus processing and the other controlled response programming. These differences were eliminated when the 32 trials were repeated.

摘要

对32名惯用右手的正常男性，将模糊图片（罗夏墨迹图）分别向右半球和左半球呈现100毫秒与200毫秒，让他们判断之前呈现的两个单词（一个准确的和一个不准确的）中哪一个能更好地描述该墨迹图。在最初的32次试验中，当接收刺激的半球也控制用于按键反应的手时（右半球 - 左手和左半球 - 右手试验），与半球资源共享时相比，即一个半球控制刺激处理而另一个半球控制反应编程时，接受每种刺激暴露时长的受试者准确性较低。当重复这32次试验时，这些差异消失了。