2013

The impact of dopamine on aggression: an [18F]-FDOPA PET Study in healthy males

Abstract Cerebral dopamine (DA) transmission is thought to be an important modulator for the development and occurrence of aggressive behavior. However, the link between aggression and DA transmission in humans has not been investigated using molecular imaging and standardized behavioral tasks. We investigated aggression as a function of DA transmission in a group of (N …

The impact of dopamine on aggression: an [18F]-FDOPA PET Study in healthy males Read More »

Elaborative encoding during REM dreaming as prospective emotion regulation

Abstract Rapid eye movement (REM) dreaming results in “emotionally intelligent encoding,” according to the target article. Building on this, we argue that elaborative encoding alters emotional processing of upcoming events and thereby functions as prospective emotion regulation. After elaborative encoding, future events are appraised differently and result in a redirected emotional response. Disturbed elaborative encoding …

Elaborative encoding during REM dreaming as prospective emotion regulation Read More »

Test-retest reliability of fMRI brain activity during memory encoding

Abstract The mechanisms underlying hemispheric specialization of memory are not completely understood. Functional magnetic resonance imaging (fMRI) can be used to develop and test models of hemispheric specialization. In particular for memory tasks however, the interpretation of fMRI results is often hampered by the low reliability of the data. In the present study we therefore …

Test-retest reliability of fMRI brain activity during memory encoding Read More »

Neural activation during anticipation of opposite-sex and same-sex faces in heterosexual men and women

Abstract Psychobiological accounts of face processing predict that greater salience is attributed to faces matching a viewer’s sexual preference than to faces that do not. However, behaviorally, this effect could only be demonstrated in tasks assessing reward ‘wanting’ (e.g. work-per-view-tasks) but not in tasks assessing ‘liking’ (e.g. facial attractiveness ratings), and has been found to …

Neural activation during anticipation of opposite-sex and same-sex faces in heterosexual men and women Read More »

Lack of association of a functional catechol-O-methyltransferase gene polymorphism with risk of tobacco smoking: results from a multicenter case-control study

Abstract Background: The catechol-O-methyltransferase (COMT) modulates dopaminergic neurotransmission in the prefrontal cortex as well as in the mesolimbic reward system. Since the reward system mediates addictive behavior, the COMT gene is a strong candidate gene regarding the pathophysiology of tobacco dependence and smoking behavior. Because of rather conflicting results in previous studies, the purpose of the …

Lack of association of a functional catechol-O-methyltransferase gene polymorphism with risk of tobacco smoking: results from a multicenter case-control study Read More »

Oxytocin influences processing of socially relevant cues in the ventral tegmental area of the human brain

Abstract Background: Evidence accumulates that the neuropeptide oxytocin plays an important role in mediating social interaction among humans and that a dysfunction in oxytocin-modulated brain mechanisms might lie at the core of disturbed social behavior in neuropsychiatric disease. Explanatory models suggest that oxytocin guides social approach and avoidance by modulating the perceived salience of socially meaningful …

Oxytocin influences processing of socially relevant cues in the ventral tegmental area of the human brain Read More »

Scroll to Top