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2003 Fiscal Year Final Research Report Summary

SII (Secondary somatosensory cortex) can be separated into two areas: Dorsal side of 511 may participate in pain perception

Research Project

Project/Area Number 14571433
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Anesthesiology/Resuscitation studies
Research InstitutionOSAKA University

Principal Investigator

SHIBATA Masahiko  Osaka University, Graduate School of Medicine, Assistant Professor, 医学系研究科, 助手 (50216016)

Co-Investigator(Kenkyū-buntansha) HAYASHI Yukio  Osaka University, Graduate School of Medicine, Associate Professor, 医学系研究科, 助教授 (60294063)
MASHIMO Takashi  Osaka University, Graduate School of Medicine, Professor, 医学系研究科, 教授 (60157188)
INOUE Takaya  Osaka University, Graduate School of Medicine, Assistant Professor, 医学系研究科, 助手 (00335358)
MIYAUCHI Satoshi  Kansai Advanced Research Center, Professor, 室長
Project Period (FY) 2002 – 2003
Keywordsallodynia / complex regional pain syndrome / f MRI / neuro-imaginging
Research Abstract

Although evidence shows that the secondary somatosensory cortex (SII) responds to tactile perception and pain, the location where this occurs and the role of SII are still unclear. We used functional MRI to evaluate activity in response to dynamic and static mechanical nociceptive stimulation. Dynamic nociceptive stimulation activated dorsal and ventral sides of SII. Static nociceptive stimulation activated only the dorsal side. Our results show that SIi is functionally divided into at least two different areas; the dorsal side is activated in pain perception and the ventral side of SII may react to changing of tactile stimulation.

URL: 

Published: 2005-04-19  

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