Brain sets sights on mind's eye.Like a private movie screen showing personalized films, each person's mind's eye mind's eye n. 1. The inherent mental ability to imagine or remember scenes. 2. The imagination. mind's eye Noun in one's mind's eye in one's imagination generates a flow of imaginary visual scenes. These internal performances are inspired by a variety of sources, from a riveting mystery novel to memories of last summer's Olympics. A new study by neuroscientists Many famous neuroscientists are from the 20th and 21st century, as neuroscience is a fairly new science. However many anatomists, physiologist, and physicians are considered to be neuroscientists as well. lends support to the notion that at least some of the brain regions involved in visual perception of the external world animate the mind's eye as well. California researchers probed the neural roots of the mind's eye in four men and five women suffering from severe, uncontrollable brain seizures. So that the scientists could identify the neural epicenter of the seizures for possible surgical removal, each patient had electrodes implanted in the same general area of his or her brain for 1 to 2 weeks. During that time, volunteers viewed pairs of pictures that included faces, objects, and scenes. After looking at two images, they closed their eyes and imagined one of them, as specified by the experimenters. As the trial proceeded for each participant, the implanted electrodes recorded the rate of electrical bursts from nearly 300 individual nerve cells, or neurons. Fourteen of these neurons exhibited matching rises and falls Rise and Fall redirects here. For the Belgian hardcore band, click here. Rises and falls is a category of the ballroom dance technique that refers to rises and falls of the body of a dancer achieved through actions of knees and feet (ankles). in electrical output when volunteers viewed a picture and imagined the same picture. Some of these cells were in a visual-perception area of the brain's outer layer, or cortex, and others in inner structures linked to memory and emotion. Gabriel Kreiman and Christof Koch Christof Koch (born November 13, 1956, Kansas City) is an American neuroscientist educated in North Africa and Europe. He received a PhD in nonlinear information processing from the Max Planck Institute in Tübingen, Germany in 1982. of the California Institute of Technology California Institute of Technology, at Pasadena, Calif.; originally for men, became coeducational in 1970; founded 1891 as Throop Polytechnic Institute; called Throop College of Technology, 1913–20. in Pasadena and Itzhak Fried of the University of California, Los Angeles UCLA comprises the College of Letters and Science (the primary undergraduate college), seven professional schools, and five professional Health Science schools. Since 2001, UCLA has enrolled over 33,000 total students, and that number is steadily rising. School of Medicine report their results in the Nov. 16 NATURE. They theorize the·o·rize v. the·o·rized, the·o·riz·ing, the·o·riz·es v.intr. To formulate theories or a theory; speculate. v.tr. To propose a theory about. that these brain cells belong to a neural system that orchestrates both the storage of visual information and its recall during imagination. Earlier brain-scan studies of healthy adults support this possibility (SN: 3/9/96, p. 155). Another 28 neurons boosted their activity only when patients viewed pictures, and 7 neurons responded only when patients imagined pictures. This fits with evidence that some forms of brain damage impair the ability either to identify visually perceived objects or to form mental images of them. |
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