This image shows a mouse hippocampus.

Memories Get the Emotional Switch

A new study reports neurons which encode whether a memory is negative or positive can be reprogrammed to change the emotional association of the experience. Findings could have implications for future research into PTSD.
This image shows a slide of the three types of cells in the rat visual cortex.

Waking Up the Visual System

Researchers observe changes in two populations of visual cortex neurons in rodents waking from anesthesia.