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Chandelier cells, a type of cortical interneuron targeting the axon initial segment of pyramidal cells are shown to monitor network activity and adjust their output in a homeostatic manner.
Compulsion is a key symptom of drug addiction. In this Review, Lüscher, Robbins and Everitt integrate the neural and psychological mechanisms that underlie the transition to compulsion within a learning theory framework, highlighting the distinctions between compulsive drug taking and compulsive drug seeking.
Early processing in subcortical areas has been underemphasized in models of how perception and cognition are altered in psychiatric disorders. Here, McFadyen and colleagues review recent discoveries in how subcortical–cortical dynamics contribute to perception and higher-order cognition.
The lateral habenula (LHb) has received increasing attention in part because dysfunction of this region may play a part in several psychiatric disorders, notably depression. In this Review, Hu et al. examine the neural circuits, physiological functions and potential pathophysiological roles of the LHb.
