Different roles of the left and right parahippocampal regions in verbal recognition: A PET study

T. Fujii, J. Okuda, R. Kawashima, A. Yamadori, R. Fukatsu, K. Suzuki, M. Ito, Ryoui Goto, H. Fukuda

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We examined the role of the parahippocampal regions in humans during two types of verbal recognition process, i.e. delayed matching and non-matching, by measuring regional cerebral blood flow (rCBF) using PET. The results showed differential activation of each parahippocampal region during verbal memory tasks in which the side activated shifted depending on the nature of the task employed; an increase in rCBF in the left parahippocampal gyrus was associated with retrieval strategy of non-matching, and an increase in rCBF in the right parahippocampal gyrus was associated with retrieval strategy of matching. We conclude that lateralized parahippocampal activation may depend on the type of response required.

Original languageEnglish
Pages (from-to)1113-1117
Number of pages5
JournalNeuroReport
Volume8
Issue number5
DOIs
Publication statusPublished - 1997 Jan 1

Keywords

  • laterality
  • matching strategy
  • non-matching strategy
  • parahippocampal region
  • positron emission tomography
  • prefrontal-hippocampal circuit
  • verbal recognition

ASJC Scopus subject areas

  • Neuroscience(all)

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