Word: stimuli
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...irritatedly familiar, for example, with the phenomenon of earworms - catchy tunes that loop in our heads, even when we detest them. This "defenseless engraving of music on the brain," Sacks suggests, is a result of the precision with which most of us can replay music internally; built to seek stimuli, the brain rewards itself for its fidelity with perfect repeats of songs. But for the patients in Sacks' book who suffer musical hallucinations - a related and not uncommon condition in which imaginary music seems to come from an outside source that can't be turned off - the results are often...
...minimum of five years is needed before the Food and Drug Administration can deem it safe to administer to millions of addicts. We are at least a decade away from even starting such trials. Addiction is a side effect of the positive evolutionary pressures to respond to pleasurable stimuli by seeking repeat stimulation. Alcoholics Anonymous is one form of therapy that we can depend on to be effective in reducing addictive behavior. Brain scans will someday lead to improved therapy, but not for many years to come. David P. Vernon, TUCSON, ARIZ...
...their own backs being stroked - either through a video feed coming live to their eyes or through one coming slightly out of synch. Afterward, the participants were blindfolded and asked to return to their original place in the room; on average, those who had had the in-synch physical stimuli - and, thus, the real feeling of an out-of-body experience - "drifted" toward where the illusion had been...
...minimum of five years is needed before the Food and Drug Administration can deem it safe to administer to millions of addicts. We are at least a decade away from even starting such trials. Addiction is a side effect of the positive evolutionary pressures to respond to pleasurable stimuli by seeking repeat stimulation. Alcoholics Anonymous is one form of therapy that we can depend on to be effective in reducing addictive behavior. Brain scans will someday lead to improved therapy, but not for many years to come. David P. Vernon, Tucson, Ariz...
...Those areas are linked along a circuit," says Dr. Sanjaya Saxena, director of the OCD program at the University of California at San Diego. It's the job of that wiring to regulate your response to the stimuli around you, including how anxious you are in the face of threatening or frustrating things. "That circuit," says Saxena, "is abnormally active in people with...