Auditory event-related potentials reflect dedicated change detection activity for higher-order acoustic transitions

Annekathrin Weise, Erich Schröger, Balázs Fehér, Tímea Folyi, J. Horváth

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The processing of auditory changes at cortical level relies partly on dedicated change-detectors whose activity is reflected in the elicitation of the N1 and P2 event-related potentials (ERPs). In previous studies, N1 and P2 have been found only for first-order frequency transitions (i.e. constant-to-glide) but not for higher-order transitions (i.e. glide-to-constant). We tested whether this asymmetry is due to the complete lack, or the smaller number of dedicated higher-order change detectors compared to first-order change detectors by recording ERPs to constant-to-glide and glide-to-constant frequency transitions within pure and complex tones. For constant-to-glide transitions ERP amplitudes increased with the rate of frequency change and spectral complexity. Importantly, for glide-to-constant transitions, N1 was elicited, even though only for spectrally rich tones when the frequency-change rate was fastest. Thus, the asymmetry in auditory change-related N1 elicitation is attributable not to the lack of higher-order change detectors, but to their relatively low number.

Original languageEnglish
Pages (from-to)142-149
Number of pages8
JournalBiological Psychology
Volume91
Issue number1
DOIs
Publication statusPublished - Sep 2012

Fingerprint

Evoked Potentials
Acoustics

Keywords

  • Asymmetry
  • Change detectors
  • Event-related potentials
  • N1
  • P2
  • Transition

ASJC Scopus subject areas

  • Neuroscience(all)
  • Neuropsychology and Physiological Psychology

Cite this

Auditory event-related potentials reflect dedicated change detection activity for higher-order acoustic transitions. / Weise, Annekathrin; Schröger, Erich; Fehér, Balázs; Folyi, Tímea; Horváth, J.

In: Biological Psychology, Vol. 91, No. 1, 09.2012, p. 142-149.

Research output: Contribution to journalArticle

Weise, Annekathrin ; Schröger, Erich ; Fehér, Balázs ; Folyi, Tímea ; Horváth, J. / Auditory event-related potentials reflect dedicated change detection activity for higher-order acoustic transitions. In: Biological Psychology. 2012 ; Vol. 91, No. 1. pp. 142-149.
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