Acetylcholine, released from cholinergic fibers originating from the medial septum, shapes social memory, and controls the CA2 hippocampal circuit via nicotinic receptors localized on GABAergic interneurons.
Cocaine elicits opposing activity changes in D1R vs D2R spiny projection neurons of the nucleus accumbens with much variability, subsequent recruitment of a subset of D1R neurons drives behavioral sensitization.
Genetic analyses using a simple nervous system of the nematode revealed the novel function of the cell fate-determining transcriptional repressor complex in the differentiated neurons to determine the precise synapse position.
A distinct neural network, including the nucleus accumbens as a central hub, is active when rats are exposed to trapped ingroup members they had previously helped escape a trap, but not for outgroup members who had not been helped.
Increased theta/alpha band activities within the habenula area and the prefrontal cortex, as well as the increased synchrony between the two structures in the same frequency band can serve as an indicator for negative emotions in humans.