Effects of age on retrieval cue processing as revealed by ERPs

Neuropsychologia
Alexa M Morcom, M D Rugg

Abstract

The electrophysiological correlates of retrieval cue processing were investigated in healthy young (18-30 years) and older (63-75 years) subjects (n = 16 per group). Retrieval orientation--the differential processing of cues according to the form of the sought-for information--and retrieval difficulty were manipulated in a factorial design. In separate study-test cycles, subjects studied either words or pictures, and performed a yes/no recognition memory task with words as the test items. ERPs elicited by correctly classified new words differed markedly according to study material in the young subjects, replicating previous findings. In the older subjects, this effect was smaller than in the young, and had a later onset and earlier offset. The scalp topography of the effect was however statistically indistinguishable in the two groups. These age-related ERP differences were unmodulated by task difficulty, and remained reliable when recognition performance was matched across the groups. By contrast, the magnitude and timing of ERP difficulty effects were unaffected by age. The findings suggest that older subjects are less able than young individuals to vary their processing of retrieval cues in response to different retrieval de...Continue Reading

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Citations

Jul 21, 2009·Brain Research·Alexandra OsorioViviane Pouthas
Mar 9, 2010·Experimental Aging Research·Maria Pia ViggianoAldo Ragazzoni
Apr 1, 2006·Memory·George P StuartNavi Bhagrath
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Jul 15, 2006·Journal of Cognitive Neuroscience·K SchiltzE Düzel
Sep 23, 2006·Journal of Cognitive Neuroscience·Jeffrey D Johnson, Michael D Rugg
May 15, 2008·Journal of Cognitive Neuroscience·Sandrine DuverneMichael D Rugg
Sep 1, 2011·Journal of Cognitive Neuroscience·Tracy H WangMichael D Rugg
Nov 1, 2012·Journal of Cognitive Neuroscience·Alexa M Morcom, Michael D Rugg
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Sep 13, 2012·Neural Plasticity·Kristine A WilckensMark E Wheeler
Nov 13, 2004·Cognitive, Affective & Behavioral Neuroscience·Juan LiMichael D Rugg
Nov 15, 2011·The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences·Elena Solesio-JofreFernando Maestú
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Nov 5, 2008·Neuroreport·Taylor M Joerger, Jennifer A Mangels
Mar 26, 2021·Neurobiology of Aging·Sabina SrokovaMichael D Rugg
Sep 28, 2021·Psychophysiology·Sarah E HendersonKaren L Campbell

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