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 ...
Jun 13, 2019
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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, ...
Feb 28, 2019
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The human brain functions on a delicate balance of reinforcing positive behaviors and suppressing negative ones, which takes place in the dorsal striatum, a brain region critical for goal-directed behavior and implicated ...
May 25, 2017
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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 ...
Jun 25, 2018
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Drug addiction may not require a habitual relationship with a substance, suggests findings from a new model of cocaine administration in rats that better captures the human experience of obtaining and using drugs. The research, ...
Nov 20, 2017
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Patterns of brain responses to rewards are a significant predictor of pain symptoms—a link that is already present by adolescence—and may be influenced by gene variants affecting pain sensitivity, reports a study in PAIN, ...
Jan 26, 2017
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