Somatosensory areas in man activated by moving stimuli:: cytoarchitectonic mapping and PET

被引：58

作者：

Bodegård, A

Geyer, S

Naito, E

Zilles, K

Roland, PE

机构：

[1] Karolinska Inst, Dept Neurosci, Div Human Brain Res, S-17177 Stockholm, Sweden

[2] Univ Dusseldorf, Dept Neuroanat, D-40001 Dusseldorf, Germany

[3] Univ Dusseldorf, C&O Vogt Inst Hirnforsch, D-40001 Dusseldorf, Germany

[4] Forschungszentrum Julich, Inst Med, D-52425 Julich, Germany

来源：

NEUROREPORT | 2000年 / 11卷 / 01期

关键词：

cerebral cortex; cytoarchitectonic areas; PET; somatosensory discrimination;

D O I：

10.1097/00001756-200001170-00037

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

This study was performed to identify neuronal populations in the somatosensory areas engaged in discrimination of moving stimuli on the skin. Changes in regional cerebral blood flow (rCBF) were measured with positron emission tomography (PET) and correlated with cytoarchitectonic sensorimotor areas 4a, 4p, 3a, 3b, and I. Volunteers discriminated differences in the speed of a rotating brush stimulating the palmar surface. Discrimination of moving stimuli, contrasted to rest, increased the rCBF mainly in primary somatosensory (SI) area I, but also in area 3b. The parietal operculum (PO) was activated bilaterally. We conclude that area I is the area in SI which is mainly responding to discrimination of moving stimuli and that the PO contains several regions engaged in the discrimination of fast transient stimuli. NeuroReport 11:187-191 (C) 2000 Lippincott Williams & Wilkins.

引用

页码：187 / 191

页数：5

共 32 条

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