Topic: rate code

Path integration is an internal computation of position by integrating velocities over time. In the absence of external landmarks, path integration accumulates error, causing the internal representation of position to drift relative to the external world [1,2]. In addition to the well-established role of landmarks in correcting this error, recent experiments identified a new role of landmarks: recalibrating the path-integration gain, a factor mapping the animal’s movement through space to an updating of position in its internal representation [3]. Here, we set out to understand the mechanisms

Sharp wave ripples are brief, highly synchronous bursts of activity in the local field potential and population activity of the hippocampus. They occur predominantly during periods of inactivity and are crucial for the transfer of short-term memories in the hippocampus to long-term memories in the cortex. How this process exactly takes place at the neuronal level, however, is still largely unknown. To answer this question, we leveraged a large publicly available dataset of simultaneous Neuropixels recordings across the brain from the International Brain Laboratory collaboration. We analyzed 74