The regional distribution of cholecystokinin-like immunoreactivity (CCK-LI) in postmortem human brain material has been investigated. CCK-LI was concentrated particularly in the forebrain (all cerebral cortical areas, amygdala, and hippocampus), with smaller amounts in the basal ganglia, hypothalamus, and periventricular grey. Lowest amounts of CCK-LI were found in the thalamus, cerebellum, and spinal cord.
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Emson et al. (1982) studied this question.
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