noviembre del 2009
Highlights findings from a study showing that nicotine triggers a surge in levels of the neurotransmitter dopamine in the brain's main reward area for cigarette smokers.
Highlights the need for research to assess and find solutions to a potential rise in substance abuse among service men and women, veterans, and their families.
Describes research providing evidence that chronic methamphetamine abuse is associated with increased microglial cell activity in the brain leading to neurodegeneration.
octubre del 2009
Highlights research showing methamphetamine abusers may have more difficulty than nonabusers in responding with empathy and self-control to people who are experiencing intense emotions.
Reports on a discovery of previously unrecognized dopamine receptors in the brain that when triggered by drug abuse lead to potentially long-term neuronal effects.
Describes research showing that cocaine abusers appear to have a rapid neural response to reward cues outside of their awareness, possibly signifying vulnerability to relapse.
Describes study findings revealing that the act of smoking, apart from actual or expected nicotine delivery, may soothe a smoker's negative mood.
abril del 2009
Highlights findings from a study of former methamphetamine abusers showing evidence of impairment in areas of the brain known to influence cognition, emotion, and decision making.
Describes a study among people who had sustained brain injuries to investigate whether certain damaged areas of the brain are associated with the ability to quit smoking.
Reports on NIDA researchers who developed a new tracer compound that binds readily to nicotine receptors and enhances positron emission tomography images.