Researchers show that memories reside in specific brain cells. In a new MIT study, researchers used optogenetics to show that memories reside in very specific brain cells, and that simply activating a tiny fraction of brain cells can recall an entire memory.

Path is Found for the Spread of Alzheimer's Disease - New studies show that Alzheimer's disease seems to spread like an infection from brain cell to brain cell, but what is being spread is a distorted protein known as tau.

Untangling the Mysteries of Alzheimer's - University of Texas Medical Branch at Galveston researchers have found new evidence that confirms the significance of tau to Alzheimer's. An article from the Science Daily, a wonderful website that publishes links to scientific research on neuroscience and psychology as well as other science areas (see the Resources page).