Quotes About Receptors

Nicotinic receptors are so named because they respond to nicotine, whether smoked or chewed, and they're spread throughout the brain. For all the problems it causes to our overall health, it's well established that nicotine can improve the rate of signal detection when a person has been misdirected—that is, nicotine creates a state of vigilance that allows one to become more detail oriented and less dependent on top-down expectations.

NMDA receptors are concentrated in the areas that control learning and memory, higher functions like multitasking, and some of the more subtle aspects of personality. When the immune system makes antibodies that attack these receptors, people may have seizures and violent fits.

when insulin docks into the receptors, the receptors directly affect the glucose transfer proteins. That encourages the transfer proteins to let more glucose into these cells for storage as glycogen or fat. The effect of all this is to reduce blood sugar level and to stock up on energy for times when food is scarce.

When caffeine gets to the receptors first, however, it doesn't let adenosine do its job. Caffeine doesn't actively keep us awake—it just blocks the natural mental brake.

According to Ramachandran, pain, like the body image, is created by the brain and projected onto the body. This assertion is contrary to common sense and the traditional neurological view of pain that says that when we are hurt, our pain receptors send a one-way signal to the brain's pain center and that the intensity of pain perceived is proportional to the seriousness of the injury.