Journal article
Segregation of complex acoustic scenes based on temporal coherence
eLife, Vol.2(2), pp.e00699-e00699
07/23/2013
DOI: 10.7554/eLife.00699
PMCID: PMC3721234
PMID: 23898398
Abstract
In contrast to the complex acoustic environments we encounter everyday, most studies of auditory segregation have used relatively simple signals. Here, we synthesized a new stimulus to examine the detection of coherent patterns ('figures') from overlapping 'background' signals. In a series of experiments, we demonstrate that human listeners are remarkably sensitive to the emergence of such figures and can tolerate a variety of spectral and temporal perturbations. This robust behavior is consistent with the existence of automatic auditory segregation mechanisms that are highly sensitive to correlations across frequency and time. The observed behavior cannot be explained purely on the basis of adaptation-based models used to explain the segregation of deterministic narrowband signals. We show that the present results are consistent with the predictions of a model of auditory perceptual organization based on temporal coherence. Our data thus support a role for temporal coherence as an organizational principle underlying auditory segregation.
Details
- Title: Subtitle
- Segregation of complex acoustic scenes based on temporal coherence
- Creators
- Sundeep Teki - Wellcome Centre for Human NeuroimagingMaria Chait - UCL Ear InstituteSukhbinder Kumar - Newcastle UniversityShihab Shamma - Département d’études cognitive, Ecole Normale Supérieure, Paris, FranceTimothy D. Griffiths - Newcastle University
- Resource Type
- Journal article
- Publication Details
- eLife, Vol.2(2), pp.e00699-e00699
- DOI
- 10.7554/eLife.00699
- PMID
- 23898398
- PMCID
- PMC3721234
- NLM abbreviation
- Elife
- ISSN
- 2050-084X
- eISSN
- 2050-084X
- Publisher
- Elife Sciences Publications Ltd
- Number of pages
- 16
- Grant note
- R01AG027573 / NATIONAL INSTITUTE ON AGING; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute on Aging (NIA) WT091681MA; 093292/Z/10/Z / Wellcome Trust; European Commission R01 DC 07657 / National Institutes of Health; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA Deafness Research UK R01DC007657 / NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute on Deafness & Other Communication Disorders (NIDCD)
- Language
- English
- Date published
- 07/23/2013
- Academic Unit
- Psychological and Brain Sciences; Neurosurgery
- Record Identifier
- 9984304033402771
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