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Updated: Aug 19, 2026

Analysis of Gene Expression Changes in the Rat Hippocampus After Deep Brain Stimulation of the Anterior Thalamic Nucleus
Published on: March 8, 2015
The thalamus as a site of action of antipsychotic drugs
Objective:
Because recent data suggest that there are abnormalities of the thalamus in schizophrenia, the authors tested the effects of antipsychotic drugs on thalamic sites.
Method:
Nine rats were given acute doses of the typical neuroleptic haloperidol (N = 3), the atypical neuroleptic clozapine (N = 3), or a drug-free vehicle (N = 3). Cellular activation was assessed by using immunohistochemistry to determine expression of the immediate response gene c-fos.
Results:
Both antipsychotic drugs induced increased Fos immunoreactivity, suggesting increased activity in cells of the midline nuclei of the thalamus.
Conclusions:
The shared clinical effects of antipsychotic drugs may be mediated in part through actions on the thalamus.
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