Discriminality of statistically independent Gaussian noise tokens and random tone-burst complexes

T.L.J. Goossens, S.L.J.D.E. Par, van de, A.G. Kohlrausch

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Abstract

Hanna (1984) has shown that noise tokens with a duration of 400 ms are harder to discriminate than noise tokens of 100 ms. This is remarkable because a 400-ms stimulus potentially contains four times as much information for judging dissimilarity than the 100-ms stimulus. Apparently, the ability to use all information in a stimulus is impaired by some kind of limitation, e.g. a memory limitation (cf. Cowan 2000) or a limitation in the ability to allocate attentional resources (cf. Kidd and Watson 1992). In a first experiment, this study examined the influence of stimulus duration and bandwidth of Gaussian noise tokens on the ability to perform an auditory discrimination task. In a second experiment, the amount of potential information in a stimulus was decoupled from its duration in order to more carefully examine the properties of the memory or attention limitation that results in the discrimination impairment. Finally, a computational model that limits the amount of perceptual information is introduced as an attempt to model the findings of the first and second experiment.
Original languageEnglish
Title of host publicationHearing - From sensory processing to perception
EditorsB. Kollmeier, G. Klump, V. Hohmann, U. Langemann, M. Mauermann, S. Uppenkamp, J. Verhey
Place of PublicationBerlin, Heidelberg, New York
PublisherSpringer
Pages343-351
ISBN (Print)978-3-540-73008-8
DOIs
Publication statusPublished - 2007
Eventconference; 14th International Symposium on Hearing (ISH 2006, Cloppenburg); 2006-08-18; 2006-08-23 -
Duration: 18 Aug 200623 Aug 2006

Conference

Conferenceconference; 14th International Symposium on Hearing (ISH 2006, Cloppenburg); 2006-08-18; 2006-08-23
Period18/08/0623/08/06
Other14th International Symposium on Hearing (ISH 2006, Cloppenburg)

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