Human auditory sustained potentials. II. Stimulus relationships

T. W. Picton, David L Woods, G. B. Proulx

Research output: Contribution to journalArticle

161 Scopus citations

Abstract

The auditory sustained potential recorded from the human scalp increases in amplitude with increasing stimulus intensity. At rapid rates of stimulus presentation its amplitude decreases but proportionately less so than the amplitude of the transient onset auditory evoked potential. The frequency specificity of this rate effect is complex, suggesting that there may be two underlying components of the scalp-recorded auditory sustained potential. The amplitude of the auditory sustained potential is smaller when the tonal frequency of the stimulus is higher. With prolonged stimulus durations there is some adaptation of the amplitude of the auditory sustained potential. This potential is larger in amplitude when sounds are presented binaurally than monaurally, and has a symmetrical coronal scalp distribution that is unaffected by the ear of stimulation.

Original languageEnglish (US)
Pages (from-to)198-210
Number of pages13
JournalElectroencephalography and Clinical Neurophysiology
Volume45
Issue number2
DOIs
StatePublished - 1978

ASJC Scopus subject areas

  • Clinical Neurology
  • Neuroscience(all)

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