Topic: beta coherence

Inter-areal coherence between cortical field-potentials is a widespread phenomenon and depends on numerous behavioral and cognitive factors. It has been hypothesized that inter-areal coherence reflects phase-synchronization between local oscillations and flexibly gates communication. We reveal an alternative mechanism, where coherence results from and is not the cause of communication, and naturally emerges as a consequence of the fact that spiking activity in a sending area causes post-synaptic inputs both in the same area and in other areas. Consequently, coherence depends in a lawful manner

Counterfactual information, or the mental representation of alternative outcomes, plays a critical role in value-based decision-making by allowing individuals to evaluate both chosen and unchosen options. Aberrant counterfactual processing is linked to psychiatric disorders like major depressive disorder (MDD). While the neural encoding of counterfactual outcomes is established, the mechanisms by which this feedback affects future decision-making are less clear. Using human intracranial electrophysiology, we show that counterfactual feedback influences subsequent choice behavior through beta o

The reciprocal connectivity of the nucleus reuniens (RE) of the ventral midline thalamus with the prefrontal cortex (PFC) and hippocampus (HC) is suggestive of the RE being a critical node within a large-scale brain network underlying spatial cognition. The RE activity has been implicated in navigation, decision making, and spatial memory consolidation. We have previously shown that the RE activity is critical for the retrieval of spatial memory. Yet, the network mechanisms of the RE contribution to the extended prefrontal-thalamo-hippocampal circuit remain to be explored. It has been suggeste