Task-optimal auditory attention set restored as fast in older as in younger adults after distraction

Volosin, Márta and Gaál, Zsófia and Horváth, János (2017) Task-optimal auditory attention set restored as fast in older as in younger adults after distraction. Biological Psychology (126). pp. 71-81. ISSN 0301-0511

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Abstract

The present study investigated how fast younger and older adults recovered from a distracted attentional state induced by rare, unpredictable sound events. The attentional state was characterized by the auditory N1 event-related potential (ERP), which is enhanced for sound events in the focus of attention. Younger (19-26 years) and older (62-74 years) adults listened to continuous tones containing rare pitch changes (glides) and short gaps. Glides and gaps could be separated in 150 ms, 250 ms, 650 ms or longer and the task was gaps detection while ignoring glides. With longer glide-gap separations similar N1 enhancements were observable in both groups suggesting that the duration of the distracted sensory state was not affected by aging. Older adults responded, however, slower at short glide-gap separations which indicated that distraction at subsequent levels of processing may have nonetheless more impact in older than in younger adults.

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