Increased alpha suppression with age during involuntary memory retrieval
| Autor: | Shana A. Hall, Jessica M Callegari, Karen L. Campbell, James A. Desjardins, Sarah E. Henderson, Sidney J. Segalowitz |
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| Rok vydání: | 2021 |
| Předmět: |
Sound localization
Adult Male medicine.medical_specialty Aging Cognitive Neuroscience Memory Episodic Involuntary memory Alpha (ethology) Experimental and Cognitive Psychology Audiology Electroencephalography 050105 experimental psychology 03 medical and health sciences Young Adult 0302 clinical medicine Developmental Neuroscience medicine Reaction Time Humans 0501 psychology and cognitive sciences Attention Young adult Episodic memory Evoked Potentials Biological Psychiatry Aged Recall medicine.diagnostic_test Endocrine and Autonomic Systems General Neuroscience 05 social sciences Neuropsychology and Physiological Psychology Sound Neurology Younger adults Mental Recall Female Cues Psychology 030217 neurology & neurosurgery |
| Zdroj: | PsychophysiologyREFERENCES. 59(1) |
| ISSN: | 1540-5958 |
| Popis: | Recent work suggests that while voluntary episodic memory declines with age, involuntary episodic memory, which comes to mind spontaneously without intention, remains relatively intact. However, the neurophysiology underlying these differences has yet to be established. The current study used electroencephalography (EEG) to investigate voluntary and involuntary retrieval in older and younger adults. Participants first encoded sounds, half of which were paired with pictures, the other half unpaired. EEG was then recorded as they listened to the sounds, with participants in the involuntary group performing a sound localization cover task, and those in the voluntary group additionally attempting to recall the associated pictures. Participants later reported which sounds brought the paired picture to mind during the localization task. Reaction times on the localization task were slower for voluntary than involuntary retrieval and for paired than unpaired sounds, possibly reflecting increased attentional demands of voluntary retrieval and interference from reactivation of the associated pictures respectively. For the EEG analyses, young adults showed greater alpha event-related desynchronization (ERD) during voluntary than involuntary retrieval at frontal and occipital sites, while older adults showed pronounced alpha ERD regardless of intention. Additionally, older adults showed greater ERD for paired than unpaired sounds at occipital sites, likely reflecting visual reactivation of the associated pictures. Young adults did not show this alpha ERD memory effect. Taken together, these data suggest that involuntary memory is largely preserved with age, but this may be due to older adults' greater recruitment of top-down control even when demand for such control is limited. |
| Databáze: | OpenAIRE |
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