Abstract:
:Two fundamental research questions have driven attention research in the past: One concerns whether selection of relevant information among competing, irrelevant, information takes place at an early or at a late processing stage; the other concerns whether the capacity of attention is limited by a central, domain-general pool of resources or by independent, modality-specific pools. In this article, we contribute to these debates by showing that the auditory-evoked brainstem response (an early stage of auditory processing) to task-irrelevant sound decreases as a function of central working memory load (manipulated with a visual-verbal version of the n-back task). Furthermore, individual differences in central/domain-general working memory capacity modulated the magnitude of the auditory-evoked brainstem response, but only in the high working memory load condition. The results support a unified view of attention whereby the capacity of a late/central mechanism (working memory) modulates early precortical sensory processing.
journal_name
J Cogn Neuroscijournal_title
Journal of cognitive neuroscienceauthors
Sörqvist P,Stenfelt S,Rönnberg Jdoi
10.1162/jocn_a_00275subject
Has Abstractpub_date
2012-11-01 00:00:00pages
2147-54issue
11eissn
0898-929Xissn
1530-8898journal_volume
24pub_type
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