Topic: Ultra-Flexible Tentacle Electrodes

Cortico-hippocampal interactions during hippocampal sharp-wave ripples (SPW-Rs) play a crucial role in memory consolidation. Hippocampal-dependent memories undergo replay during SPW-Rs, facilitating coordinated ensemble reactivation in the neocortex. This orchestrated mechanism is essential for transferring memory traces from the hippocampus to long-term storage in the neocortex. Following memory consolidation in the neocortex, it is hypothesized that downstream neuronal ensembles are stabilized in diverse cortical regions. The stability of neuronal ensembles across several months has not been

Silicon electrode arrays with thousands of channels enable read-out of the activity of large populations of neurons, but they induce chronic inflammation in the brain and a decline in signal quality. On the other hand, existing flexible electrode arrays have limitations on how reliably they can be inserted into any targeted depth in the brain while maintaining a high density of recording channels. To address these problems, we developed Ultra-Flexible Tentacle Electrodes (UFTE), where each recording channel is mechanically independent to provide maximal compliance with brain tissue—while also