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The Rhythm of Perception: Entrainment to Acoustic Rhythms Induces Subsequent Perceptual Oscillation.
Hickok, Gregory; Farahbod, Haleh; Saberi, Kourosh.
Afiliação
  • Hickok G; Department of Cognitive Sciences, University of California, Irvine greg.hickok@uci.edu.
  • Farahbod H; Department of Cognitive Sciences, University of California, Irvine.
  • Saberi K; Department of Cognitive Sciences, University of California, Irvine.
Psychol Sci ; 26(7): 1006-13, 2015 Jul.
Article em En | MEDLINE | ID: mdl-25968248
Acoustic rhythms are pervasive in speech, music, and environmental sounds. Recent evidence for neural codes representing periodic information suggests that they may be a neural basis for the ability to detect rhythm. Further, rhythmic information has been found to modulate auditory-system excitability, which provides a potential mechanism for parsing the acoustic stream. Here, we explored the effects of a rhythmic stimulus on subsequent auditory perception. We found that a low-frequency (3 Hz), amplitude-modulated signal induces a subsequent oscillation of the perceptual detectability of a brief nonperiodic acoustic stimulus (1-kHz tone); the frequency but not the phase of the perceptual oscillation matches the entrained stimulus-driven rhythmic oscillation. This provides evidence that rhythmic contexts have a direct influence on subsequent auditory perception of discrete acoustic events. Rhythm coding is likely a fundamental feature of auditory-system design that predates the development of explicit human enjoyment of rhythm in music or poetry.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Periodicidade / Córtex Auditivo / Percepção Auditiva / Percepção da Fala / Música Idioma: En Ano de publicação: 2015 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Periodicidade / Córtex Auditivo / Percepção Auditiva / Percepção da Fala / Música Idioma: En Ano de publicação: 2015 Tipo de documento: Article