Two neurotransmitters are particularly important in<unk><unk>  – serotonin and acetylcholine. They are concentrated in the<unk>  thalamic nuclei and<unk>  cortex. The similarity of<unk><unk>  that stem from diverse conditions suggest a common pathway for<unk><unk> . Three pathophysiologic mechanisms are thought to explain this. The first mechanism has to do with cortical centers responsible for<unk>  processing. Irritation of<unk>  association cortices (Brodmann's areas 18 and 19) cause complex<unk><unk> . The second mechanism is deafferentation, the interruption or destruction of the afferent connections of nerve cells, of the<unk>  system, caused by lesions, leading to the removal of normal inhibitory processes on cortical input to<unk>  association areas, leading to complex<unk>  as a release phenomenon.
Visual hallucinations in psychosis
Chronic hallucinatory psychosis
Myxedema psychosis
Unitary psychosis
Excited delirium
Dancing mania
Stimulant psychosis
Treatment-resistant depression