Difficulty with the preceding visual search affects brain activity in the following resting period

Ayumi Takemoto (Coresponding Author), Sunao Iwaki, Zhoumao Duo, Shinobu Yasumuro, Takatsune Kumada

Research output: Contribution to journalArticlepeer-review


It has been well-documented that brain regions related to a task are activated during the task performance. We investigated whether brain activity and functional connectivity during the rest period are affected by the preceding task. Participants performed visual search tasks with three search conditions, which were followed by a rest period. During the rest period, participants were asked to look at the display that did not show any visual stimuli. In the result, brain activity in occipital and superior parietal regions would be deactivated by the preceding task during the rest period after visual search tasks. However, the activity of the inferior frontal gyrus during the rest period, which is also part of the attention network, was not affected by the brain activity during the preceding visual search task. We proposed a new model for explaining how the cognitive demands of the preceding visual search task regulate the attention network during the rest period after the task. In this model, the cognitive demand changes with task difficulty, which affects the brain activity even after removing the visual search task in the rest phase.

Original languageEnglish
Article number18545
JournalScientific Reports
Issue number1
Publication statusPublished - 3 Nov 2022


  • Humans
  • Brain Mapping
  • Magnetic Resonance Imaging
  • Rest/physiology
  • Brain/physiology
  • Parietal Lobe/physiology

Field of Science*

  • 3.4 Medical biotechnology

Publication Type*

  • 1.1. Scientific article indexed in Web of Science and/or Scopus database


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