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bioRxiv · 10.1101/2021.05.28.446142

Retrosplenial and hippocampal synchrony during retrieval of old memories in macaques

Hussin, A. T.·Abbaspoor, S.·Hoffman, K. L.
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Abstract

To understand the neural activity behind recollections of the distant past, we recorded from the hippocampus and retrosplenial cortex of macaques as they retrieved year-old and newly-acquired object-scene associations. Year-old memoranda preferentially evoked retrosplenial sigma oscillations (10-15 Hz), and phase-locking between RSC and eye movements during retrieval. In contrast, gamma-band retrosplenial-hippocampal synchrony was stronger during retrieval of new items. Primate retrosplenial oscillations may therefore guide retrieval of visuospatial events long past.

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Hussin, A. T., Abbaspoor, S., Hoffman, K. L.. 2021-05-28. Retrosplenial and hippocampal synchrony during retrieval of old memories in macaques. https://doi.org/10.1101/2021.05.28.446142

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