A 'passive' event-related potential?

A. M. Herbert*, G. E. Gordon, D. L. McCulloch

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Event potentials (ERPs) were recorded in response to visual patterns in two conditions: (1) where no instructions were given to subjects; and (2) where subjects pressed a button whenever a rare stimulus was detected. P3 amplitudes for the No Instructions condition were smaller than for the Active condition, but the latency of the P3s did not differ across conditions. In both conditions, the P3 was either absent or significantly smaller for frequent stimuli than for rare stimuli. It appears a 'passive' visual P3 is measurable, and it occurs at the same latency as a P3 recorded in association with an active response. Thus, it may be possible to record P3s in response to visual stimulation in subjects who cannot follow instructions to respond to rare events.

Original languageEnglish
Pages (from-to)11-21
Number of pages11
JournalInternational Journal of Psychophysiology
Volume28
Issue number1
DOIs
Publication statusPublished - 1 Jan 1998

Keywords

  • Attention
  • Event-related potentials
  • P3
  • Passive viewing
  • Vision

ASJC Scopus subject areas

  • General Neuroscience
  • Neuropsychology and Physiological Psychology
  • Physiology (medical)

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