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Early age-related changes in episodic memory retrieval as revealed by event-related potentials
被引:31
|作者:
Guillaume, Cecile
[1
]
Clochon, Patrice
[1
]
Denise, Pierre
[2
]
Rauchs, Geraldine
[1
]
Guillery-Girard, Berengere
[1
]
Eustache, Francis
[1
]
Desgranges, Beatrice
[1
]
机构:
[1] Univ Caen Lower Normandy, INSERM, EPHE, GIP Cyceron,Res Unit U923, Caen, France
[2] Univ Hosp, Dept Clin Neurophysiol, Caen, France
来源:
关键词:
ageing;
episodic memory;
event-related potentials;
familiarity;
frontal old/new effect;
middle age;
monitoring;
parietal old/new effect;
recognition;
recollection;
ERP;
RECOLLECTION;
RECOGNITION;
D O I:
10.1097/WNR.0b013e32831b44ca
中图分类号:
Q189 [神经科学];
学科分类号:
071006 ;
摘要:
Familiarity is better preserved than recollection in ageing. The age at which changes first occur and the slope of the subsequent decline, however, remain unclear. In this study, we investigated changes in episodic memory, by using event-related potentials (ERPs) in young (m=24), middle-aged (m=58) and older (m=70) adults. Although behavioural performance did not change before the age of 65 years, changes in ERP correlates were already present in the middle-aged adults. The ERP correlates of recollection and monitoring processes were the first to be affected by ageing, with a linear decrease as age increased. Conversely, the ERP correlate of familiarity remained unchanged, at least up to the age of 65 years. These results suggest a differential time course for the age effects on episodic retrieval. NeuroReport 20:191-196 (C) 2009 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins.
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页码:191 / 196
页数:6
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