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IR@PKUHSC  > 北京大学第三临床医学院  > 神经内科  > 期刊论文
学科主题: 临床医学
题名:
Prominent activation of the intraparietal and somatosensory areas during angle discrimination by intra-active touch
作者: Yang, Jiajia1; Han, Hongbin2; Chui, Dehua3; Shen, Yong4,5; Wu, Jinglong1,6
关键词: functional magnetic resonance imaging ; intraparietal sulcus ; somatosensory cortex ; active touch ; passive touch ; index finger
刊名: HUMAN BRAIN MAPPING
发表日期: 2012-12-01
DOI: 10.1002/hbm.21419
卷: 33, 期:12, 页:2957-2970
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Neurosciences ; Neuroimaging ; Radiology, Nuclear Medicine & Medical Imaging
研究领域[WOS]: Neurosciences & Neurology ; Radiology, Nuclear Medicine & Medical Imaging
关键词[WOS]: HUMAN BRAIN ; PREFRONTAL CORTEX ; TACTILE DISCRIMINATION ; GRATING ORIENTATION ; SINGLE-NEURON ; SELF TOUCH ; FMRI ; SHAPE ; PARIETAL ; OBJECTS
英文摘要:

Intra-active touch (IAT) is a process that involves a body part doing the touching (active touch [AT]) and another body part being touched (passive touch [PT]) simultaneously. The brain representation related to IAT is still unclear. A total of 23 subjects carried out angle discrimination under PT, AT and IAT conditions with functional magnetic resonance imaging. All of the tasks were strictly dependent on cutaneous feedback from the finger(s). As the subjects were able to perceive the angle stimuli from the right (touching) and left (touched) sides during the IAT condition, we expected there would be greater brain activation with the IAT condition than for the AT or PT condition. Therefore, we hypothesized that the region within and/or around the intraparietal sulcus (IPS) and the part of the primary somatosensory cortex (SI) that is associated with high-level tactile spatial processing would be more active during the IAT task than during the AT and PT tasks. Compared with the areas activated by the motor somatosensory control task, the most prominent activation areas evoked by the three-angle discrimination tasks were in the SI and secondary somatosensory cortex areas in the bilateral parietal operculum, IPS, lateral occipital complex, insula and cerebellum. Finally, we directly compared IAT with AT and PT, and the results suggest that the contralateral part of IPS and part of the SI are more active under IAT conditions than under either AT or PT conditions. These results suggest that both hemispheres contribute to angle discrimination during IAT. Hum Brain Mapp 33:2957-2970, 2012. (C) 2011 Wiley Periodicals, Inc.

语种: 英语
所属项目编号: 21404002 ; 2006CB500705 ; 2006AA02A408
项目资助者: Grant-in-Aid for Scientific Research (B), Japan ; AA Science Platform Program of the Japan Society for the Promotion of Science ; National Key Basic Research Program of China (973 program China) ; National High Technology Research and Development Program of China (863 program China)
WOS记录号: WOS:000310798800017
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/61888
Appears in Collections:北京大学第三临床医学院_神经内科_期刊论文

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作者单位: 1.Okayama Univ, Grad Sch Nat Sci & Technol, Biomed Engn Lab, Okayama 7008530, Japan
2.Peking Univ, Hosp 3, Dept Neurol, Beijing 100871, Peoples R China
3.Peking Univ, Neurosci Res Inst, Beijing 100871, Peoples R China
4.Roskamp Inst, Ctr Adv Therapeut Strategies Brain Disorders, Sarasota, FL USA
5.Beijing Inst Technol, Inst Neurosci, Beijing 100081, Peoples R China
6.Beijing Univ Technol, Int WIC Inst, Beijing, Peoples R China

Recommended Citation:
Yang, Jiajia,Han, Hongbin,Chui, Dehua,et al. Prominent activation of the intraparietal and somatosensory areas during angle discrimination by intra-active touch[J]. HUMAN BRAIN MAPPING,2012,33(12):2957-2970.
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