Can echoic memory store two traces simultaneously? A study of event- related brain potentials

I. Winkler, P. Paavilainen, R. Naatanen

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

The mismatch negativity, a component of the event-related brain potential elicited by infrequent deviants in sequences of auditory stimuli, is presumably generated by an automatic mismatch process in a mechanism that compares the current stimulus to the trace of the previous one. The present study addressed the possible simultaneous existence of two such traces. Two equiprobable (45% each) frequent stimuli ('standards'), one of 600 Hz and the other of 700 Hz, were presented together with an infrequent (10%), 'deviant' stimulus which was of different frequency in different blocks. These deviants elicited a mismatch negativity, though a smaller one than that obtained in corresponding blocks with only one standard stimulus. Two aspects of the present results from the blocks with two standard stimuli implicate two parallel stimulus traces in these blocks: 1) deviants elicited a mismatch negativity (MMN) of approximately the same amplitude when preceded by sequences of four identical standards as when preceded by sequences of four stimuli containing both standards; 2) in contrast to the one-standard condition, the magnitude of stimulus deviance did not affect the MMN component elicited by the different deviants.

Original languageEnglish
Pages (from-to)337-349
Number of pages13
JournalPsychophysiology
Volume29
Issue number3
DOIs
Publication statusPublished - 1992

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Evoked Potentials
Brain

Keywords

  • Audition
  • Event-related brain potentials
  • Mismatch negativity
  • Precategorical auditory store
  • Sensory memory

ASJC Scopus subject areas

  • Physiology
  • Physiology (medical)
  • Psychology(all)
  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology

Cite this

Can echoic memory store two traces simultaneously? A study of event- related brain potentials. / Winkler, I.; Paavilainen, P.; Naatanen, R.

In: Psychophysiology, Vol. 29, No. 3, 1992, p. 337-349.

Research output: Contribution to journalArticle

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