Amygdala responses to the facial signals of others predict both normal and abnormal emotional states. An understanding of the brain chemistry underlying these responses will lead to new strategies for treating and predicting psychopathology.
The switch from single-celled organisms to ones made up of many cells has evolved independently more than two dozen times. What can this transition teach us about the origin of complex organisms such as animals and plants?
Indirect effects of global climate change threaten the health of hundreds of millions of people. The very uncertainty that shrouds this issue must serve as an organizing principle for adaptation to its ill effects.
An increasing amount of data is showing that the cellular battle between pathogens and hosts needs much more than a simple military metaphor to describe it—think undercover infiltration, front organizations, and forced suicide.