Word: stimuli
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Dates: during 2000-2009
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Research by Meredith Chivers at the Center for Addiction and Mental Health, affiliated with the University of Toronto, shows that women do respond to sexy visual stimuli. In fact, in a study recently presented at a Kinsey Institute conference on female sexuality, Chivers found that women show physical signs of arousal in response to a wider variety of images (including films of bonobo chimps mating) than men do. But unlike in men, this physical arousal is not closely paired with a subjective feeling of being turned on. In short, physical arousal for women can come before or even...
...estrogen trigger desire by stimulating the release of neurotransmitters in the brain. These chemicals are ultimately responsible for our moods, emotions and attitudes. And the most important of these for the feeling we call desire seems to be dopamine. Dopamine is at least partly responsible for making external stimuli arousing (among other things, it's thought to be the pleasure-triggering substance underlying drug addiction). "Being low on dopamine," says the University of Washington Medical School's Heiman, "correlates with being low on desire." And in men dopamine-enhancing drugs (including some antidepressants and anti-Parkinson's medications) can increase...
...trying to ask is, ‘How does the retina achieve this?’” Dowling explains, and his research thus far has attempted to focus on the circuitry of the retina. He investigates how the individual neurons connect and then respond to light stimuli, recording these as electrical responses...
Reticular formation As the brain's sentry, this structure receives incoming stimuli and puts the brain on alert, ready to respond. Meditating dials back the arousal signal...
...nothing else, Barney will forever be remembered as the man who taught us the word cremaster, which is the muscle that raises or lowers the testicles in response to warmth, cold or whatever other stimuli. His great preoccupation is the stage of fetal development during the first eight weeks of gestation, when the embryo has not yet been differentiated as male or female. As obsessions go, this might not be one you would expect from a former high school football player from Boise, Idaho. But to him this stage represents a time of pure potential. The descent of the testicles...