A study of temporal aspect of posterior parietal cortex in visual search using transcranial magnetic stimulation (特集 フィジオームに向けた生体工学)

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概要

• 論文の詳細を見る

• It is known that the posterior parietal cortex (PPC) plays a dominant role in spatial processing during visual search. However, the temporal aspect of the PPC is unclear. In the present study, to investigate the temporal aspects of the PPC in feature search, we applied Transcranial Magnetic Stimulation (TMS) over the right PPC with the TMS stimulus onset asynchronies (SOAs) set at 100, 150, 200 and 250 ms after visual search stimulation. We found that when SOA was set at 150 ms, compared to the sham TMS condition, there was a significant elevation in response time when TMS pulses were applied. However, there was no significant difference between the TMS and sham TMS conditions for the other SOA settings. Therefore, we suggest that the spatial processing of feature search is probably processed in the posterior parietal cortex at about 150-170 ms after visual search stimuli presentation.

• 社団法人 電気学会の論文
• 2007-10-01

著者

• GE Sheng

  Graduate School of Information Science and Electrical Engineering, Kyushu University

• IRAMINA Keiji

  Graduate School of Information Science and Electrical Engineering, Kyushu University

• Iramina Keiji

  Graduate School Of Information Science And Electrical Engineering Kyushu University

• Ueno Shoogo

  Graduate School Of Engineering Kyushu University

• Ge Sheng

  Radiology Imaging Laboratory Department Of Radiology University Of California

• Ge Sheng

  Graduate School Of Information Science And Electrical Engineering Kyushu University

• MATSUOKA Akira

  Graduate School of Information Science and Electrical Engineering, Kyushu University

• Matsuoka Akira

  Graduate School Of Information Science And Electrical Engineering Kyushu University

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