Abstract In 2016 the World Health Organization reported 39% of the world's adult population
(over 18 y) was overweight, with western countries such as Australia and the United States …

Extraversion has two central characteristics:(1) interpersonal engagement, which consists of
affiliation (enjoying and valuing close interpersonal bonds, being warm and affectionate) …

[Avena, NM, Rada, P., Hoebel BG, 2007. Evidence for sugar addiction: Behavioral and
neurochemical effects of intermittent, excessive sugar intake. Neuroscience and …

primate research suggests that affiliation is a highly complex construct. studies of primate
affiliation demonstrate the need to distinguish between various affiliative behaviors, consider …

Drug abuse and dependence define behavioral states involving increased allocation of
behavior towards drug seeking and taking at the expense of more appropriate behavioral …

Rationale and objectives: Repeated exposure to many drugs of abuse results in a
progressive and enduring enhancement in the motor stimulant effect elicited by a …

The mesolimbic dopaminergic (ML-DA) system has been recognized for its central role in
motivated behaviors, various types of reward, and, more recently, in cognitive processes …

A compelling model of experience-dependent plasticity is the long-lasting sensitization to
the locomotor stimulatory effects of drugs of abuse. Adaptations in the nucleus accumbens …

Drug addiction is a medical condition, a chronic relapsing disease. As in other domains of
experimental medicine, appropriate experimental investigations are needed in order to …

The nucleus accumbens, a major part of the ventral striatum, comprises numerous
subterritories and compartments, of which the core and shell appear to be dominant. Shell …