Pre-attentive auditory change detection for rapid auditory transient combinations : Insight from age-related processing changes

Volosin, Márta and Czigler, István and Horváth, János (2021) Pre-attentive auditory change detection for rapid auditory transient combinations : Insight from age-related processing changes. BIOLOGICAL PSYCHOLOGY, 159. No.-108024. ISSN 0301-0511

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Abstract

The N1 event-related potential (ERP) enhancement to auditory transients preceded briefly by another transient has been interpreted as a reflection of latent inhibition, or alternatively, as a superimposing mismatch negativity (MMN) to rare transient event combinations. In a previous study (Volosin, Ga´al, & Horv´ath, 2017a), when rare glides preceded frequent gaps by 150 ms in continuous tones, gap-related N1 was enhanced in younger adults while P2 was attenuated both in younger and older adults, which could be parsimoniously explained by MMN overlap which was delayed with aging. The present study replicated and extended these results with a condition in which the roles of the two event types were reversed. Transients separated by 150 ms elicited delayed MMN in older adults, supporting the MMN interpretation over the latent inhibition account. Furthermore, the divergence of N1 and MMN elicitation patterns demonstrated the independence of N1 and MMN.

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