Social play behaviour is a highly energetic and rewarding activity that is of great importance
for the development of brain and behaviour. Social play is abundant during the juvenile and …

In the young of many mammalian species, including humans, a vigorous and highly
rewarding social activity is abundantly expressed, known as social play behaviour. Social …

There is growing evidence of 'food addiction'(FA) in sugar-and fat-bingeing animals. The
purpose of this study was to investigate the legitimacy of this disorder in the human …

Importance Since pornography appeared on the Internet, the accessibility, affordability, and
anonymity of consuming visual sexual stimuli have increased and attracted millions of users …

Marijuana exerts profound effects on human social behavior, but the neural substrates
underlying such effects are unknown. Here we report that social contact increases, whereas …

Psychiatric disorders like mood disorders, schizophrenia, or drug addiction affect a sizeable
proportion of the human population and severely compromise quality of life. Therefore …

Psychiatric disorders such as schizophrenia and major depressive disorder were thought to
be caused by neurotransmitter abnormalities. Patients with these disorders often experience …

Cannabis enables and enhances the subjective sense of well-being by stimulating the
endocannabinoid system (ECS), which plays a key role in modulating the response to …

BACKGROUND: Brain dopamine neurons code rewarding environmental stimuli by
releasing endogenous dopamine, a transmission signal that is important for reinforcement …

Psychoactive substance and nonsubstance/behavioral addictions are major public health
concerns associated with significant societal cost. Adolescence is a period of dynamic …