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Journal of Cognitive Neuroscience

November 2018, Vol. 30, No. 11, Pages 1577-1589
(doi: 10.1162/jocn_a_01304)
© 2018 Massachusetts Institute of Technology
Replay of Stimulus-specific Temporal Patterns during Associative Memory Formation
Article PDF (5.95 MB)

Forming a memory often entails the association of recent experience with present events. This recent experience is usually an information-rich and dynamic representation of the world around us. We here show that associating a static cue with a previously shown dynamic stimulus yields a detectable, dynamic representation of this stimulus. We further implicate this representation in the decrease of low-frequency power (∼4–30 Hz) in the ongoing EEG, which is a well-known correlate of successful memory formation. The reappearance of content-specific patterns in desynchronizing brain oscillations was observed in two sensory domains, that is, in a visual condition and in an auditory condition. Together with previous results, these data suggest a mechanism that generalizes across domains and processes, in which the decrease in oscillatory power allows for the dynamic representation of information in ongoing brain oscillations.