Neural Measures of Subsequent Memory Reflect Endogenous Variability in Cognitive Function

Autor/inn/en	Weidemann, Christoph T.; Kahana, Michael J.
Titel	Neural Measures of Subsequent Memory Reflect Endogenous Variability in Cognitive Function
Quelle	In: Journal of Experimental Psychology: Learning, Memory, and Cognition, 47 (2021) 4, S.641-651 (11 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Weidemann, Christoph T.)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0278-7393
DOI	10.1037/xlm0000966
Schlagwörter	Recall (Psychology); Memory; Cognitive Processes; Brain; Young Adults; Neurosciences + Suchen Sie Ihr Suchwort? Abberufung; Gedächtnis; Cognitive process; Kognitiver Prozess; Gehirn; Young adult; Junger Erwachsener; Neuroscience; Neurowissenschaften; Neurowissenschaft
Abstract	Human cognition exhibits a striking degree of variability: Sometimes we rapidly forge new associations whereas at other times new information simply does not stick. Correlations between neural activity during encoding and subsequent retrieval performance have implicated such "subsequent memory effects" (SMEs) as important for understanding the neural basis of memory formation. Uncontrolled variability in external factors that also predict memory performance, however, confounds the interpretation of these effects. By controlling for a comprehensive set of external variables, we investigated the extent to which neural correlates of successful memory encoding reflect variability in endogenous brain states. We show that external variables that reliably predict memory performance have relatively small effects on electroencephalographic (EEG) correlates of successful memory encoding. Instead, the brain activity that is diagnostic of successful encoding primarily reflects fluctuations in endogenous neural activity. These findings link neural activity during learning to endogenous states that drive variability in human cognition. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01