Perceptual learning evidence for tuning to spectrotemporal modulation in the human auditory system.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
Andrew T SabinBeverly A Wright

Abstract

Natural sounds are characterized by complex patterns of sound intensity distributed across both frequency (spectral modulation) and time (temporal modulation). Perception of these patterns has been proposed to depend on a bank of modulation filters, each tuned to a unique combination of a spectral and a temporal modulation frequency. There is considerable physiological evidence for such combined spectrotemporal tuning. However, direct behavioral evidence is lacking. Here we examined the processing of spectrotemporal modulation behaviorally using a perceptual-learning paradigm. We trained human listeners for ∼1 h/d for 7 d to discriminate the depth of spectral (0.5 cyc/oct; 0 Hz), temporal (0 cyc/oct; 32 Hz), or upward spectrotemporal (0.5 cyc/oct; 32 Hz) modulation. Each trained group learned more on their respective trained condition than did controls who received no training. Critically, this depth-discrimination learning did not generalize to the trained stimuli of the other groups or to downward spectrotemporal (0.5 cyc/oct; -32 Hz) modulation. Learning on discrimination also led to worsening on modulation detection, but only when the same spectrotemporal modulation was used for both tasks. Thus, these influences of trainin...Continue Reading

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Citations

Dec 12, 2012·Journal of the Association for Research in Otolaryngology : JARO·Andrew T SabinBeverly A Wright
Jun 4, 2013·Hearing Research·Sarah M N Woolley, Christine V Portfors
Aug 7, 2013·Journal of Cognitive Neuroscience·Yamit CohenMerav Ahissar
Jan 7, 2014·PLoS Computational Biology·Roberta SantoroElia Formisano
Aug 24, 2013·The Journal of the Acoustical Society of America·Andrew T SabinPamela E Souza
Sep 23, 2014·The Journal of the Acoustical Society of America·Matthew G WisniewskiEduardo Mercado
Dec 13, 2012·The Journal of the Acoustical Society of America·Elizabeth S AndersonDavid A Nelson
Aug 10, 2013·The Journal of the Acoustical Society of America·Julia Jones Huyck, Beverly A Wright
Jun 14, 2014·Proceedings of the National Academy of Sciences of the United States of America·Jonathon P WhittonDaniel B Polley
Oct 18, 2014·The Journal of the Acoustical Society of America·Karen Banai, Yizhar Lavner
Jul 12, 2016·PLoS Computational Biology·Eva R M JoostenPeter Neri
Jul 21, 2017·PloS One·Matthew G WisniewskiEduardo Mercado
Nov 30, 2018·Attention, Perception & Psychophysics·Ruijing NingBeverly A Wright
Oct 15, 2020·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Prawin KumarKumari Apeksha

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