Day: December 4, 2015

Effects of smoking cessation on presynaptic dopamine function of addicted male smokers

Abstract Background: There is evidence of abnormal cerebral dopamine transmission in nicotine-dependent smokers, but it is unclear whether dopaminergic abnormalities are due to acute nicotine abuse or whether they persist with abstinence. We addressed this question by conducting longitudinal positron emission tomography (PET) examination of smokers before and after 3 months of abstinence. Methods: We obtained baseline …

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Mechanisms of hemispheric lateralization: Asymmetric interhemispheric recruitment in the face perception network

Abstract Perceiving human faces constitutes a fundamental ability of the human mind, integrating a wealth of information essential for social interactions in everyday life. Neuroimaging studies have unveiled a distributed neural network consisting of multiple brain regions in both hemispheres. Whereas the individual regions in the face perception network and the right-hemispheric dominance for face …

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When your friends make you cringe: social closeness modulates vicarious embarrassment-related neural activity

Abstract Social closeness is a potent moderator of vicarious affect and specifically vicarious embarrassment. The neural pathways of how social closeness to another person affects our experience of vicarious embarrassment for the other’s public flaws, failures and norm violations are yet unknown. To bridge this gap, we examined the neural response of participants while witnessing …

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