Neuroscience

Researchers study how cues drive our behavior

Do dopamine neurons have a role in causing cues in our environment to acquire value? And, if so, do different groups of dopamine neurons serve different functions within this process?

Neuroscience

A gene required for addictive behavior

Cocaine can have a devastating effect on people. It directly stimulates the brain's reward center, and, more importantly, induces long-term changes to the reward circuitry that are responsible for addictive behaviors. Alban ...

Neuroscience

New insights into nicotine's effect on reward pathways

Northwestern scientists have discovered new mechanisms used by nicotine to manipulate the brain's reward pathway—findings which could inform the development of future anti-addiction therapies.

Neuroscience

Stress regulates self-harm in rats

A stress hormone modulates compulsive biting in a rat model of self-injurious behavior (SIB), according to new research published in JNeurosci. Manipulating the activity of the brain circuitry underlying SIB could create ...

Neuroscience

Axon guidance gene influences reward system

Individuals with a mutation in a gene involved in nervous system development have reduced connectivity between regions of the brain's reward system, finds a study of a four-generation Canadian family published in JNeurosci.

Psychology & Psychiatry

Dopamine, drugs, and depression

The neurotransmitter dopamine plays a major role in mental illnesses like substance abuse disorders and depressive disorders, as well as a more general role in reward and motivational systems of the brain. But there are still ...

page 2 from 6