PerspectiveNeuroscience

Ripples for memory retrieval in humans

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Science  01 Mar 2019:
Vol. 363, Issue 6430, pp. 927-928
DOI: 10.1126/science.aaw6767

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Summary

How do we remember our experiences? The mental skill of bringing previously encountered people, events, and objects to mind is intuitive, but how neural circuits enable this episodic memory retrieval remains a fundamental question in neuroscience. On page 975 of this issue, Vaz et al. (1) use intracranial electrophysiological recordings in humans to identify a putative mechanism involved in memory retrieval: synchronized occurrence of high-frequency oscillations across brain regions. Their findings highlight the importance of dynamic interactions between brain areas in mediating complex cognitive processes and suggest a biomarker for pinpointing neural populations involved in different memories.

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