• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2003 Fiscal Year Final Research Report Summary

STUDIES ON THE PATTERN PERCEPTION MECHANISM OF MACAQUE INFEROTEMPORAL CORTEX

Research Project

Project/Area Number 13610106
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 実験系心理学
Research InstitutionTOKYO METROPOLITAN ORGANIZATION OF MEDICAL RESEARCH

Principal Investigator

YAGINUMA Shigeya  TOKYO METROPOLITAN ORGANIZATION OF MEDICAL RESEARCH, TOKYO METROPOLITAN INSTITUTE FOR NEUROSCIENCE, CHIEF RESEARCHER, 東京都神経科学総合研究所, 主任研究員 (90174490)

Project Period (FY) 2001 – 2003
Keywordsmacaques / inferotemporal cortex / area TE / area TEO / pattern perception / visual memory / pattern discrimination / ablation study
Research Abstract

Conventional lesion studies have suggested that the posterior inferotemporal cortex (area TEO) is more closely involved in pattern perception, whereas the anterior inferotemporal cortex (area TE) is mainly involved in visual memory in the monkey. However, recent neuron studies have shown that area TE neurons, as well as area TEO neurons, have pattern selectivity, and, more important, tend to prefer more complex patterns compared with area TEO neurons. Moreover, an anatomical finding suggests the participation of area TEO to visiual memory. Considering these findings, we reexamined the functions of the inferotemporal subdivisional areas. The main findings are as follows.
1)Lesion effects of gyral area TEO and anterior area TE were examined on simple and complex pattern discrimination tasks. In the simple pattern discrimination tasks, the TEO lesion produced significantly severer impairments than the anterior TE lesion. On the other hand, in the complex pattern discrimination tasks, no si … More gnificant difference was found between the effects of the TEO and anterior TE lesions. These findings suggest that conventional lesion studies failed to observe significant pattern discrimination deficits following TE lesions because they employed rather simple patterns in the pattern discrimination tasks, and area TE participates in processing features of complex patterns.
2)Lesion effects of gyral area TEO, anterior area TE, and new TEO, in which the ventromedial portion of the posterior inferotemporal cortex was ablated adding to gyral TEO, were examined on a task in which monkeys had to select delayed matching-to-sample or nonmatching-to-sample strategy, depending on whether the sample objects were baited or not. The new TEO lesion as well as the anterior TE lesion produced significant impairments in this task but gyral TEO lesions did not. The present findings suggest the involvement of the posterior inferotemporal cortex, in particular, its ventromedial portion, in mediating recognition and association memory. Less

  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] 柳沼重弥他: "マカクザルTEO野摘除による視覚性記憶障害"日本心理学会第65回大会発表論文集. 97 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yaginuma, S.et al.: "Dense amnesia in macaqua monkeys after lesions of posterior inferotemporal lobe"Neuroscience Research. Suppl.25. S116 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 柳沼重弥他: "マカクザルTEO野と認知記憶"日本心理学会第66回大会発表論文集. 340 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yaginuma, S.et al.: "Effects of posterior inferotemporal lobe lesion on associative memory in macaque monkeys"Neuroscience Research. Suppl.26. S87 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 柳沼重弥他: "マカクザル下部側頭葉と連合記憶"日本心理学会第67回大会発表論文集. 387 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yaginuma, S.et al.: "Examination of the learning and memory ability of monkeys in manual experimental apparatus"Neuroscience Research. Suppl.1. S73 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yaginuma, S. et al.: "Visual memory deficits following area TEO lesions in macaques. (in Japanese)"Abstracts of the 65th Congress of the Japanese Psychological Association. 97 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yaginuma, S. et al.: "Dense amnesia in macaque monkeys after lesions of posterior inferotemporal lobe."Neuroscience Research. Suppl.25. S116 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yaginuma, S.: "Higher visual functions in inferotemporal cortical aea TEO. (in Japanese)"Bulletin of Tokyo Metropolitan Institute for Neuroscience. 29. 72-73 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yaginuma, S. et al.: "Macaque area TEO and recognition memory. (in Japanese)"Abstracts of the 66th Congress of the Japanese Psychological Association. 340 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yaginuma, S. et al.: "Effects of posterior inferotemporal lobe lesions on associative memory in macaque monkeys."Neuroscience Research. Suppl.26. S87 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yaginuma, S.: "Higher visual functions in inferotemporal cortical area TEG (in Japanese)"Bulletin of Tokyo Metropolitan Institute for Neuroscience. 30. 161-162 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yaginuma, S. et al.: "Macaque inferotemporal lobe and association memory. (in Japanese)"Abstracts of the 67th Congress of the Japanese Psychological Association. 387 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yaginuma, S. et al.: "Examination of the learning and memory ability of monkeys in manual experimental apparatus."Neuroscience Research. Suppl.1. S13 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yaginuma, S.: "Studies on the pattern perception mechanism in inferotemporal lobe. (in Japanese)"Bulletin of Tokyo Metropolitan Institute for Neuroscience. 31. 40-41 (2003)

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 2005-04-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi