By engineering cells with light-responsive ion channels, optogenetics allow the activity of cells such as neurons to become controlled by pulses of visible light. The technology is widely used throughout the institute in experiments in which purposeful instigation or suppression of neural activity can reveal important data on the functions of cells, circuits, systems, and behaviors.

In the brain, neural circuits mediate senses of reward and aversion, memory and behavior. Perturbations in these circuits may result in disease states such as anxiety. By studying the anatomy, function and dynamics of these circuits in regions such as the amygdala, as well as their connections with other regions, Picower scientists are unraveling the bases of these disorders.

Early-life or “toxic” stress can significantly affect neural development and behavior. Picower Institute research includes the effects of genetic and environmental adversity in early development and many scientists also closely study the more general question of how experience changes the brain.

Parkinson’s disease is associated with a loss of dopamine-producing neurons, resulting in tremor and other difficulties in motor control. Research at the Picower Institute includes studies to understand how cells become susceptible in the disease as the brain ages and on improving therapeutic approaches.