Eleanor J. Gibson
Encyclopedia
Eleanor J. Gibson was an American
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 psychologist
Psychologist
Psychologist is a professional or academic title used by individuals who are either:* Clinical professionals who work with patients in a variety of therapeutic contexts .* Scientists conducting psychological research or teaching psychology in a college...

. Among her contributions to psychology, the most important are the study of perception
Perception
Perception is the process of attaining awareness or understanding of the environment by organizing and interpreting sensory information. All perception involves signals in the nervous system, which in turn result from physical stimulation of the sense organs...

 in infants and toddlers. She is popularly known for the "visual cliff
Visual cliff
The visual cliff apparatus was created by psychologists Eleanor J. Gibson and R.D. Walk to investigate depth perception in human and animal species. This apparatus allowed them to experimentally adjust the optical and tactical stimuli associated with a simulated cliff while protecting the subjects...

" experiment in which precocial animals, and crawling human infants, showed their ability to perceive depth by avoiding the deep side of a virtual cliff. Along with her husband James J. Gibson, she forwarded the concept that perceptual learning
Perceptual learning
The term perceptual learning refers to the process of long lasting improvement in performing perceptual tasks as a function of experienceand practice . According to Eleanor Gibson , it refers to the experience-induced changes in the way information is extracted following sensory experience...

 takes place by differentiation. Gibson is credited with creating the Gibsonian or ecological theory of development, which centers on the concept of affordances
Affordance
An affordance is a quality of an object, or an environment, which allows an individual to perform an action. For example, a knob affords twisting, and perhaps pushing, while a cord affords pulling...

 and how children learn to perceive them.

The "Visual Cliff" was a wooden table from the edge of which strong plate glass extended, Life magazine reported in 1959. Children were put on the table top and coaxed to crawl out over the glass, the magazine said. But when they got to the edge of the cliff and looked down almost all of them quickly withdrew. Even their mothers' most persuasive urgings could not get them out. Similar studies were done with animals, including rats and kittens.

The findings indicated that perception is an essentially adaptive process, or as Dr. Gibson put it, We perceive to learn, as well as learn to perceive.

In 1982, she was invited to Beijing to teach Chinese psychologists about recent theories and techniques of research.

In 1992, Eleanor Gibson was awarded the National Medal of Science
National Medal of Science
The National Medal of Science is an honor bestowed by the President of the United States to individuals in science and engineering who have made important contributions to the advancement of knowledge in the fields of behavioral and social sciences, biology, chemistry, engineering, mathematics and...

.

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