Journal article
Evaluating the sources and functions of gradiency in phoneme categorization: An individual differences approach
Journal of experimental psychology. Human perception and performance, Vol.43(9), pp.1594-1611
09/2017
DOI: 10.1037/xhp0000410
PMCID: PMC5561468
PMID: 28406683
Abstract
During spoken language comprehension listeners transform continuous acoustic cues into categories (e.g., /b/ and /p/). While long-standing research suggests that phonetic categories are activated in a gradient way, there are also clear individual differences in that more gradient categorization has been linked to various communication impairments such as dyslexia and specific language impairments (Joanisse, Manis, Keating, & Seidenberg, 2000; López-Zamora, Luque, Álvarez, & Cobos, 2012; Serniclaes, Van Heghe, Mousty, Carré, & Sprenger-Charolles, 2004; Werker & Tees, 1987). Crucially, most studies have used 2-alternative forced choice (2AFC) tasks to measure the sharpness of between-category boundaries. Here we propose an alternative paradigm that allows us to measure categorization gradiency in a more direct way. Furthermore, we follow an individual differences approach to (a) link this measure of gradiency to multiple cue integration, (b) explore its relationship to a set of other cognitive processes, and (c) evaluate its role in individuals' ability to perceive speech in noise. Our results provide validation for this new method of assessing phoneme categorization gradiency and offer preliminary insights into how different aspects of speech perception may be linked to each other and to more general cognitive processes. (PsycINFO Database Record
Details
- Title: Subtitle
- Evaluating the sources and functions of gradiency in phoneme categorization: An individual differences approach
- Creators
- Efthymia C Kapnoula - Department of Psychological and Brain Sciences, DeLTA Center, University of IowaMatthew B Winn - Department of Speech and Hearing Sciences, University of WashingtonEun Jong Kong - Department of English, Korea Aerospace UniversityJan Edwards - Department of Communication Sciences and Disorders, Waisman Center, University of Wisconsin-MadisonBob McMurray - Department of Psychological and Brain Sciences, DeLTA Center, University of Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of experimental psychology. Human perception and performance, Vol.43(9), pp.1594-1611
- Publisher
- United States
- DOI
- 10.1037/xhp0000410
- PMID
- 28406683
- PMCID
- PMC5561468
- ISSN
- 0096-1523
- eISSN
- 1939-1277
- Grant note
- R01 DC008089 / NIDCD NIH HHS National Institutes of Health
- Language
- English
- Date published
- 09/2017
- Academic Unit
- Communication Sciences and Disorders; Linguistics; Psychological and Brain Sciences; Iowa Neuroscience Institute; Otolaryngology
- Record Identifier
- 9984070271002771
Metrics
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