Psychology & Psychiatry

Formation of habitual use drives cannabis addiction

A shift from brain systems controlling reward-driven use to habit-driven use differentiates heavy cannabis users who are addicted to the drug from users who aren't, according to a study in Biological Psychiatry: Cognitive ...

Medical research

Trigger region found for absence epileptic seizures

Scientists have discovered a neurological origin for absence seizures—a type of seizure characterized by very short periods of lost consciousness in which people appear to stare blankly at nothing. Using a mouse model of ...

Psychology & Psychiatry

Ability to control stress reduces negative impacts

In individuals, stress exposure in adolescence increases vulnerability and risk of developing psychopathologies in adulthood, such as drug addiction, mood, anxiety, addiction to gambling, attention deficit hyperactivity disorder, ...

Psychology & Psychiatry

Personality and mood affect brain response to personal choice

Personality traits and mental health affect how people value personal control in decision making, according to a new study in Biological Psychiatry: Cognitive Neuroscience and Neuroimaging. Our brain's reward and motivation ...

Neuroscience

Nicotine alters neurotransmission in habit-forming brain region

A study of rat brain slices published in JNeurosci demonstrates how nicotine interacts with cells that regulate the output of a brain region involved in habit formation. The research could inform efforts to help people quit ...

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