Judging semantic and episodic incongruity: A magnetoencephalographic study

Kyoko Suzuki, Jiro Okuda, Yuji Otsuka, Akira Sugawara, Keisaku Hatanaka, Nobukazu Nakasato, Akitake Kanno, Takashi Yoshimoto, Toshikatsu Fujii, Atsushi Yamadori

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Evoked magnetic fields over the entire head were measured during a semantic judgment task, in which conditions of the pre-test learning session were manipulated. Subjects learnt related and unrelated category-noun pairs, and were then asked to judge the relationship between category and noun. Unrelated pairs evoked activation around 400ms in the left temporal area. In addition, newly presented related pairs, of which the categories were used to learn unrelated pairs, also evoked similar activities. Our findings suggest that these activities are not only related to the semantic incongruity between a pair of words as in previous studies, but also to the episodic incongruity between the learning and measurement sessions.

Original languageEnglish
Pages (from-to)195-199
Number of pages5
JournalNeuroReport
Volume12
Issue number2
DOIs
Publication statusPublished - 2001 Feb 12

Keywords

  • Category
  • Episodic memory
  • Event-related potential (ERP)
  • Learning
  • Magnetoencephalography
  • N400
  • Paired associates
  • Recognition
  • Semantic memory
  • Superior temporal gyrus

ASJC Scopus subject areas

  • Neuroscience(all)

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