正电子发射断层扫描研究单词的加工。

Positron emission tomographic studies of the processing of singe words.

机构信息

Washington University School of Medicine, Departments of Neurology, Neurological Surgery and Radiation Sciences, McDonnell Center for Studies of Higher Brain Function, Mallinckrodt Institute of Radiology, Washington University Department of Psychology.

出版信息

J Cogn Neurosci. 1989 Spring;1(2):153-70. doi: 10.1162/jocn.1989.1.2.153.

DOI:10.1162/jocn.1989.1.2.153

PMID:23968463

Abstract

PET images of blood flow change that were averaged across individuals were used to identify brain areas related to lexical (single-word) processing, A small number of discrete areas were activated during several task conditions including: modality-specific (auditory or visual) areas activated by passive word input, primary motor and premotor areas during speech output, and yet further areas during tasks making semantic or intentional demands.

摘要

对个体间血流变化的 PET 图像进行平均处理，用于识别与词汇（单个单词）处理相关的大脑区域。在几种任务条件下，会激活少数离散的区域，包括：被动输入单词时激活的特定模态（听觉或视觉）区域，言语输出时的初级运动和运动前区域，以及在执行语义或意向性任务时的其他区域。