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Phonetic categorization and discrimination of voice onset time under divided attention

Chiu, Faith and Rakusen, Lyndon L and Mattys, Sven L (2020) 'Phonetic categorization and discrimination of voice onset time under divided attention.' Journal of the Acoustical Society of America, 147 (6). EL484-EL490. ISSN 0001-4966

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Event durations are perceived to be shorter under divided attention. “Time shrinkage” is thought to be due to rapid attentional switches between tasks, leading to a loss of input samples, and hence, an under-estimation of duration. However, few studies have considered whether this phenomenon applies to durations relevant to time-based phonetic categorization. In this study, participants categorized auditory stimuli varying in voice onset time (VOT) as /ɡ/ or /k/. They did so under focused attention (auditory task alone) or while performing a low-level visual task at the same time (divided attention). Under divided attention, there was increased response imprecision but no bias toward hearing /ɡ/, the shorter-VOT sound. It is concluded that sample loss under divided attention does not apply to the perception of phonetic contrasts within the VOT range.

Item Type: Article
Uncontrolled Keywords: Humans; Speech Perception; Attention; Voice; Time Factors; Phonetics
Divisions: Faculty of Social Sciences
Faculty of Social Sciences > Language and Linguistics, Department of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 06 Jun 2020 15:15
Last Modified: 06 Jan 2022 14:15

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