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Regional time-radioactivity curves in rhesus monkey brain after i.v. injection of [11C]3 in monkey A (Panel A), after pretreatment of monkey A with 3 (1 mg/kg, i.v.) (Panel B), in monkey B with 3 (1.5 mg/kg, i.v.) administered as a displacing agent at 100 min (Panel C). Key: ×, striatum; △, cerebellum; ◇, frontal cortex; □, lateral temporal cortex; +, thalamus; ○, medial temporal cortex; ▲, pons.
