- published: 24 Feb 2016
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Perception (from the Latin perceptio, percipio) is the organization, identification, and interpretation of sensory information in order to fabricate a mental representation through the process of transduction, which sensors in the body transform signals from the environment into encoded neural signals. All perception involves signals in the nervous system, which in turn result from physical stimulation of the sense organs. For example, vision involves light striking the retinas of the eyes, smell is mediated by odor molecules and hearing involves pressure waves. Perception is not the passive receipt of these signals, but can be shaped by learning, memory and expectation. Perception involves these "top-down" effects as well as the "bottom-up" process of processing sensory input. The "bottom-up" processing is basically low-level information that's used to build up higher-level information (i.e. - shapes for object recognition). The "top-down" processing refers to a person's concept and expectations (knowledge) that influence perception. Perception depends on complex functions of the nervous system, but subjectively seems mostly effortless because this processing happens outside conscious awareness.
Tyra Lynn Banks (born December 4, 1973). is an American model, media personality, actress, occasional singer, author and businesswoman. She first became famous as a model, appearing twice on the cover of the Sports Illustrated Swimsuit Issue and working for Victoria's Secret as one of their original Angels. Banks is the creator and host of the UPN/The CW reality television show America's Next Top Model, co-creator of True Beauty, and host of her own talk show, The Tyra Banks Show.
Tyra Banks was born in Inglewood, California. She is the daughter of Caroline (née London; now London-Johnson), a medical photographer, and Donald Banks, a computer consultant. She has a brother, Devin, who is five years older. In 1980, when Banks was 6 years old, her parents divorced. Banks attended John Burroughs Middle School and graduated in 1991 from Immaculate Heart High School in Los Angeles. Tyra Banks is one of four African Americans and seven women to have repeatedly ranked among the world's most influential people by Time magazine.
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