Event-related potentials during mental imagery

Seiichi Yamamoto*, Hisato Mukai

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Event-related potentials(ERPs) were measured while subjects were constructing mental images of a letter of the alphabet. Following presentation of an uppercase letter, subjects were asked to form a mental image of the same letter in lower case, and determine whether or not it had an ascending or descending stroke (ascender or descender). ERPs were measured in a passive condition and then compared with the ERPs recorded while the subjects performed the discrimination task. During the discrimination task, negative potentials were observed in left frontal, central and parietal areas around 220 ms after the stimulus onset. These early negative potentials were dominant in the left hemisphere and are probably related to working memory processes in mental image formation.

Original languageEnglish
Pages (from-to)3359-3362
Number of pages4
Issue number15
Publication statusPublished - 1998 Oct 26
Externally publishedYes


  • Discrimination task
  • Event-related potentials
  • Mental imagery

ASJC Scopus subject areas

  • Neuroscience(all)


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