Janne Isojärvi

This study investigates how age, sex, and BMI affect striatal dopamine synthesis capacity in Parkinson's disease patients and healthy controls using PET data.

This study examines D2R availability in neuropsychiatric conditions using PET data from 437 individuals, finding reduced availability in Parkinson's disease and altered interregional connectivity in schizophrenia, depression, and violent behavior.

This study examines age and sex differences in striatal D2R availability using a large PET cohort, finding age-related decline and sex differences in D2R levels.

This study investigates the role of cerebral μ-opioid and CB1-receptor systems in human feeding behavior using PET scans and the Dutch Eating Behavior Questionnaire.

This study finds seasonal variation in brain mu-opioid receptor availability in humans, showing an inverted U-shaped relationship with daylength.

This study quantifies interindividual variability and hemispheric lateralization of μ-opioid receptors in the human brain using PET and Bayesian modeling.