When a rat helps another within its social group, brain areas associated with reward and motivation become more active. This does not occur when a rat is faced with the prospect of helping another rat outside its social group. Researchers say the findings may provide a better understanding of similar social biases in humans.
Eating disorder behaviors are reinforced due to changes in the brain's reward response processes and alterations in the food intake control network.
Flavored e-cigarette tobacco engages the taste system, while non-flavored vaped nicotine triggers the brain's reward system in a similar way observed when people smoke traditional cigarettes.
Study reveals specific neurons in the ventrolateral prefrontal cortex and anterior cingulate cortex that become active when people are faced with the decision to learn or hide from information about an adverse event the person is not able to prevent.
A new study reveals what goes on in the brain when a person embarks on a musical collaboration project.
Researchers conclude the mind of an extremist is marked by a mixture of conservative and dogmatic psychological signatures. Extremists tend to be cognitively cautious, slower at perceptual processing, and have weaker working memory. This is compounded by impulsive personality traits that seek sensation and risky experiences.
The use of social media, specifically to drive "likes" to our content, follows a pattern of "reward learning", much like when an animal is trained to seek food rewards.
People who suffer from obesity have stronger connections between brain areas associated with the motivation to eat and the rewarding effect of food consumption. Additionally, researchers found noted differences in the thickness of the cerebral cortex of obese test subjects.
From helping to reduce depression to boosting dopamine in the reward system, researchers review how taking up a hobby can have positive effects on mental health.
Diet-induced changes to the reward system and innate differences may predispose mice to over-eating.