She lay very still, her heart pounding, her body bathed in sweat and the smell of him, her brain blank, oblivious of her surroundings.

NEWYORKER: Pumpkin Head

Now the Nvidia chips teenagers use in Unreal Tournament are basically the same ones used by scientists at Evolved Machines in Palo Alto, California who are simulating neurons used by the brain to see and smell.

FORBES: Magazine Article

Now the Nvidia chips teenagers use to blast each other in Unreal Tournament are basically the same ones used by scientists at Evolved Machines in Palo Alto, Calif. who are simulating neurons used by the brain to see and smell.

FORBES: Shoot To Kill

Since 1991, working separately, the two have found how each protein can be sensitive to more than one smelly chemical, in different amounts, and how any given chemical activates several proteins at once, much like a unique musical chord which the brain then identifies as a smell.

ECONOMIST: The Nobel prizes

They also scavenge (detoxify) peoxynitrites and reverse part of their damage including partially restoring function to receptors involved in short-term memory, mood, sleep, smell, social recognition, alertness, and brain growth, increasing the transport of glucose reducing delusions and wandering, improving neurotransmissions by decreasing the hyperphosphorylation and tau proteins, and inhibiting the influx of calcium which kills neurons.

FORBES: What Can You Do When Your Aging Parent Has Dementia?

Sudden changes in mood or personality, visual hallucinations and alternations in smell, taste or tactile senses could signal a brain tumor or other abnormality.

WSJ: Confusing Medical Ailments With Mental Illness

They found some evidence that low concentrations of dopamine, a brain chemical, may respond to the sight and smell of food in an addictive manner for some obese people.

NPR: Rabid Reader: 'Fat Land' and U.S. Supersizing