Positron emission tomography

D2/D3 dopamine receptor binding with [F-18]fallypride correlates of executive function in medication-näive patients with schizophrenia

Converging evidence indicates that the prefrontal cortex is critically involved in executive control and that executive dysfunction is implicated in schizophrenia. Reduced dopamine D2/D3 receptor binding potential has been reported in schizophrenia, …

Serotonin transporter binding after recovery from bulimia nervosa

Objective: Physiological and pharmacological studies indicate that altered brain serotonin (5-HT) activity could contribute to a susceptibility to develop appetitive and behavioral alterations that are characteristic of bulimia nervosa (BN). Method: …

18F-Fallypride binding potential in patients with schizophrenia compared to healthy controls

Background: Molecular imaging of dopaminergic parameters has contributed to the dopamine hypothesis of schizophrenia, expanding our understanding of pathophysiology, clinical phenomenology and treatment. Our aim in this study was to …

Effect of fluoxetine on regional cerebral metabolism in autistic spectrum disorders: A pilot study

The regional metabolic effects of fluoxetine were examined in patients with autism spectrum disorders. Six adult patients with DSM-IV and Autism Diagnostic Interview (ADI) diagnoses of autism (n = 5) and Asperger's syndrome (n = 1), entered a 16-wk …

Prefrontal cortex glucose metabolism and startle eyeblink modification abnormalities in unmedicated schizophrenia patients

Attentional modulation of the startle reflex was studied in 16 unmedicated schizophrenia patients and 15 control individuals during the 18F-2-deoxyglucose uptake period for positron emission tomography. In a task involving attended, ignored, and …