Is faster better? Effects of response deadline on ERP correlates of recognition memory in younger and older adults

Scheuplein, Anna-Lena and Bridger, Emma K. and Mecklinger, Axel (2014) Is faster better? Effects of response deadline on ERP correlates of recognition memory in younger and older adults. Brain Research, 1582. pp. 139-153. ISSN 0006-8993

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Abstract

Aging studies generally suggest that recollection is impaired whereas familiarity-based recognition remains relatively preserved in healthy older adults. The present event-related potential (ERP) study explores whether age-related impairments in recognition memory can be reduced under conditions in which recognition decisions are primarily driven by familiarity. Old and young adults performed an item recognition task with perceptually rich visual stimuli. A response deadline procedure was employed following previous studies which have shown that limiting response times attenuates recollection but leaves familiarity relatively unaffected. Age effects on memory performance were large in the non-speeded response condition in which recollection contributes to performance. When response time was limited, performance differences between groups were negligible. In the non-speeded condition the ERP correlate of recollection was not detectable in old adults. Conversely, in the speeded condition ERP correlates of familiarity were obtained in both age groups, though attenuated for old adults. For old adults in the speeded condition a temporally extended posterior negativity was obtained which was more pronounced for low performing participants. The results suggest that even though the neural generators of the familiarity signal degrade with age, familiarity is an important contributor to recognition memory in older adults and can lead to a disproportional benefit in memory in conditions designed to specifically enhance familiarity-based responding.

Item Type:	Article
Identification Number:	10.1016/j.brainres.2014.07.025
Dates:	Date Event 16 July 2014 Accepted 23 July 2014 Published Online
Subjects:	CAH04 - psychology > CAH04-01 - psychology > CAH04-01-01 - psychology (non-specific)
Divisions:	Faculty of Business, Law and Social Sciences > College of Psychology
Depositing User:	Silvio Aldrovandi
Date Deposited:	13 Jun 2017 21:44
Last Modified:	11 Jun 2024 13:03
URI:	https://www.open-access.bcu.ac.uk/id/eprint/4632

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