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

1987 Fiscal Year Final Research Report Summary

Selective attention and its eent-related potential (ERP) reflection

Research Project

Project/Area Number 61510067
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Psychology
Research InstitutionHyogo College of Medicine

Principal Investigator

OKITA Tsunetaka  Hyogo College of Medicine, 医学部, 助教授 (70068542)

Co-Investigator(Kenkyū-buntansha) KONISHI Kenzo  Hyogo College of Medicine, 医学部, 助手 (60068583)
Project Period (FY) 1986 – 1987
KeywordsSelective attention / Event-related potential / Target detection task / 記憶探索
Research Abstract

1. The aim of the present atudy was to clarify the relationship of the attentionrelated ERP (or Nd) to inrormation selection,and investigate the characteristics of attentional selection processes.
2.Auditory experiments:A number of recent studies have sown the Nd wave which contains the early and late components. However, it is uncertain which aspects of selection proccesses Nd reflects. In the basic paradigm tone pips are randomly and equiprobably delivered to the two ears (channels). A subject attends selectively to one of the ears and detects occasional "target" tones of a slightly deviant from the more frequent "nontarget" tones. This task, therefore, requires a between-channel selection of attended from unattended stimuli and a within-channel selection of target from nontarget stimuli. Naatanen (1982) hypothesized that the between-channel selection is a lind of automatic template matching process, and that the more similar the input and the template, the larger and longer the early … More Nd will be. In Experiment 1,tone pips were used to move continuously in spatial location and pitch (or channel selection cues),and the speeds of the moving tones were varied in different conditions. There were no differences at any phase of Nd as a function of movement verocity, indicating that anticipation can play an important role in the early between-channel selection. In Experiment 2,the early Nd was found to be protracted as a function of target/nontarget selection difficulty. This finding strongly subbests that the early Nd Reflects within-channel selection as well as between-channel selection.
3.Visual experiments:ERPs related to memory search (within-channel selection) were investigated using stimuli consisting of a letter and a drawing superimposed. Occipital negativity increased as search load increased,but at the central region a systematic increase of positivity was observed in disagreement with our previous studies(Okita et al.,1985).Further research is needed to investigate whether the present results are due to the superimposed stimuli used here. Less

  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] Okita,Tsunetaka: Biological Psychology. 24. 225-236 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Okita,Tsunetaka: submitting for publication.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 沖田庸嵩: 日本心理学会第50回大会発表論文集. 103 (1986)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 沖田庸嵩: 日本心理学会第51回大会発表論文集. 68 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 小西賢三: 日本心理学会第50回大会発表論文集. 104 (1986)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 小西賢三: 日本心理学会第51回大会発表論文集. 69 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Okita,Tsumetaka: "Event-related potentials and selective attention to tones moving in location and pitch:An examination of movement verocity." Biological Psycholoby. 24. 225-236 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Okita,Tsunetaka: "Within-channel selection and event-related potentials during selective auditory attention."

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Okita,Tsunetaka: "Event-related potentials and human information processing(17)----the relationship between attention-related negativity and stimulus selection processes." Proceedings of the 50th Annual Convention of the Japanese Psychological Association.103 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Okita,tsunetaka: "Event-related potentials and human information processing(19) ----the relationship between attention-related negativity and rechecking processes." Proceedings of the 51st Annual Convention of the Japanese Psychological Association.68 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Konishi,Kenzo: "Event-related potentials and human information processing(18) ----An examination of search negativity under the discrimination task using superimposed stimuli." Proceedings of the 51st Anual Convention of Japanese Psychological Association.69 (1987)

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

URL: 

Published: 1989-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi