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Localizing Localization: The Role of Working Memory in Auditory Localization
Author(s) -
Merat Natasha,
Groeger John A.,
Withington Deborah J.
Publication year - 1999
Publication title -
international journal of psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.75
H-Index - 62
eISSN - 1464-066X
pISSN - 0020-7594
DOI - 10.1080/002075999399620
Subject(s) - articulatory suppression , task (project management) , working memory , psychology , recall , speech recognition , degree (music) , echoic memory , cognitive psychology , word (group theory) , serial position effect , communication , short term memory , computer science , free recall , cognition , mathematics , neuroscience , acoustics , physics , geometry , management , economics
It is unclear from current accounts of working memory which, if any, of its components might be involved in our ability to specify the location of a sound source. A series of studies were performed to assess the degree of interference in localization of broadband noise, by a concurrent articulatory suppression (articulatory loop—Experiment 1), serial recall (phonological store and articulatory loop—Experiment 2), and Paced Visual Serial Addition Test (central executive—Experiment 3). No significant disruption of auditory localization was revealed by the first two experiments, ruling out a role for the phonological loop in auditory localization. In Experiment 3, a large degree of error was exhibited in localization, when performed concurrently with the addition task, indicating a requirement for central resources. This suggestion is confirmed by comparison of localization performance across all three studies, which demonstrates a clear deterioration in performance as the demand of concurrent tasks on central resources increases. Finally, concurrent localization was shown to disrupt the primacy portion of the serial position curve, as well as performance on the Paced Visual Serial Addition Test.