Discusses research exploring how widespread the reduction of neural activity is in the brain with chronic exposure to cocaine.
Describes research findings showing differences in protein concentrations in the brain pleasure centers of people who died from cocaine overdose as compared with those who did not abuse the drug.
Describes research findings demonstrating that the immune system participates in the shaping of brain circuits during a child's development, a finding that may shed light on the origins of neurodegenerative diseases.
Describes new tools under development, including one to visualize cells deep in the brain and another one that remotely activates brain cells.
Presents research findings linking 89 genes to drug abuse and dependence, found using genome-wide association studies, a new technique for identifying genes.
Reports on evidence that toluene abuse can harm the nervous system and body, although scientists know relatively little about its specific actions.
Reports on a study involving researchers who successfully desensitized mice to cocaine by genetically altering their dopamine transporters.
Reports on scientists who pinpointed the biochemical trigger from morphine that sets off a chain reaction that inhibits an immune cell that is key in fighting viruses and cancer.
Reports on research showing that newborns whose mothers abused methamphetamine during pregnancy showed lower rates of fetal growth as compared with unexposed newborns.
Describes the work of researchers who have found a statistical link between one region on chromosome 17 and an increased risk of opioid dependence.