Affective and temporal orientation of thoughts: Electrophysiological evidence

Yuichi Ito, Midori Shibata, Yuto Tanaka, Yuuri Terasawa, Satoshi Umeda

Research output: Contribution to journalArticle

Abstract

The factors that determine the content and valence of spontaneous thoughts have not yet been clarified. In this study, we focused on the effects of bodily states and depression and anxiety traits. Participants performed a past/future thinking task in which three-part sentences including temporal cues were presented in a sequential pattern, for example “in the near future/dreams/will come true”. We measured heartbeat-evoked potentials (HEPs)to assess affective processing, and event-related potentials (ERPs)to assess temporal processing of thoughts that emerged when the temporal cue words were presented. The HEPs predicted thought valence irrespective of personality traits. Larger N400 ERPs were observed in response to past-oriented than to future-oriented words in participants with higher levels of depression, whereas the opposite was the case in participants with higher social anxiety. Our data suggest that afferent signals modulate affective thought-orientations as triggers, and that individuals with depression and anxiety have sensitivity toward temporal information at the neural level.

Original languageEnglish
Pages (from-to)148-156
Number of pages9
JournalBrain Research
Volume1719
DOIs
Publication statusPublished - 2019 Sep 15

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Keywords

  • Affective processing
  • Depression
  • ERP
  • HEP
  • Social anxiety
  • Temporal orientation

ASJC Scopus subject areas

  • Neuroscience(all)
  • Molecular Biology
  • Clinical Neurology
  • Developmental Biology

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