Tag Archives: University of California Berkeley


This Is Your Brain on Drugs

Using cocaine just once may change a person’s brain structure, making him or her more likely to seek out or crave the drug again. Within hours of being exposed to cocaine, the brain cells of mice displayed increased development of protrusions called dendritic spines, believed to be involved in memory formation. Those mice whose brains were most changed by the cocaine exposure seemed to develop the greatest preference for the drug, suggesting that this is part of the process of learning addictionMore… Discuss


Today In The News: Prenatal Pesticide Exposure Linked to Lower IQ

Prenatal Pesticide Exposure Linked to Lower IQ

Children whose mothers are exposed to high amounts of certain pesticides while pregnant appear to have lower intelligence quotients (IQs) than their peers when they reach school age. Three US studies have found that a child’s IQ tends to decrease in proportion to its mother’s exposure to organophosphates during pregnancy. While prenatal exposure to these pesticides was linked with childhood IQ, exposure after birth was not, suggesting that organophosphates are more damaging to developing fetuses than to children. More… Discuss