This image shows a brain surrounded by waving yellow and blue bands.

How Brain Waves Guide Memory Formation

The hippocampus and prefrontal cortex use two different brain wave frequencies to communicate when the brain learns to associate unrelated objects, a new study reports.
The image shows a bat in flight.

3D Compass in the Brain

A group of neurons in the hippocampal formation sense which direction the head is pointed, a new study reports.