Cortico-striato-thalamo-cortical pathway (CSTC pathway)

The **cortico-striato-thalamo-cortical pathway** is a major neural circuit in the brain that connects regions of the cerebral cortex with the striatum, thalamus, and back to the cortex. It consists of several parallel loops that are functionally segregated—such as motor, oculomotor, dorsolateral prefrontal, orbitofrontal, and anterior cingulate circuits—each supporting distinct aspects of behavior including movement control, cognitive flexibility, reward evaluation, affect regulation, and salience processing. Dysfunction within these loops has been implicated in various neurological and psychiatric conditions including Parkinson’s disease, Huntington’s disease, obsessive-compulsive disorder (OCD), Tourette syndrome, major depressive disorder (MDD), dystonia and substance use disorders. The CSTC pathways are not molecular targets themselves but rather anatomical/functional circuits composed of multiple neuron types utilizing neurotransmitters like dopamine and glutamate. Therapeutic interventions often aim to modulate activity within these circuits using pharmacological agents or neuromodulation techniques rather than targeting a specific molecule or receptor. **Note:** This entry is marked "is_incorrect" because it refers to an anatomical/functional neural network rather than a discrete molecular target such as a receptor or enzyme.

Other names

Cortico-striatal-thalamic-cortical loopCSTC loopcortico-basal ganglia-thalamo-cortical loop (CBGTC loop)cortico-striatal circuitcorticostriatal circuit

Not applicable as a direct molecular target; neuromodulation therapies such as deep brain stimulation (DBS), repetitive transcranial magnetic stimulation (rTMS), and transcranial direct current stimulation (tDCS) can alter activity in this circuitry for therapeutic purposes