Johan Rajander

This study uses PET/MRI to examine glucose metabolism and hemodynamic responses during pleasurable music listening, revealing complementary neural activity patterns in brain regions associated with reward and emotion.

This study shows that seasonal photoperiod cycling reduces inter-individual variability in mu-opioid receptor density in rats compared to constant photoperiod conditions.

This study investigates how the endogenous opioid system modulates brain responses to threat and safety signals in humans using fMRI and PET.

This study targets macrophage folate receptor-β in autoimmune myocarditis to reduce macrophage infiltration using a folate-aminopterin conjugate.

This study investigates dopamine D2R and opioid MOR receptor availabilities in ASD using PET imaging and finds reduced D2R availability in striatum and nucleus accumbens, and MOR changes in hippocampi and precuneus.

This study evaluates unsupervised clustering methods for segmenting dynamic total-body PET images at the organ level, finding that k-means with PCA performs best but still has limited accuracy.