Visual experience can substantially alter critical flicker fusion thresholds

Aaron R. Seitz, Jose Nanez, Steven R. Holloway, Takeo Watanabe

Research output: Contribution to journalArticlepeer-review

32 Scopus citations


Studies of psychopharmacology often use the test of the critical flicker fusion (CFF) threshold as a measure of total information processing. It is true that studies of practice effects have shown that CFF thresholds are remarkably stable within and across multiple days of testing. This study confirms that subjects who undergo CFF testing on sequential days have stable thresholds, but also demonstrates that in subjects who conducted 1 h of motion training per day for 9 days the CFF thresholds increased by an average of 30%. The results show that the perceptual experience of subjects can dramatically alter the CFF thresholds and should be an important consideration in the control of studies employing the CFF as a measure.

Original languageEnglish (US)
Pages (from-to)55-60
Number of pages6
JournalHuman Psychopharmacology
Issue number1
StatePublished - Jan 2005


  • Critical flicker fusion
  • Human psychophysics
  • Perceptual experience
  • Perceptual learning

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology
  • Psychiatry and Mental health
  • Pharmacology (medical)


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