Emilio Segrè Visual Archives

More than 30,000 photos of scientists and their work

Averbach Emanuel C1

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Averbach Emanuel C1

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Image title: 
Averbach Demonstrates Experiment
Credit line: 
AIP Emilio Segrè Visual Archives, Physics Today Collection

Dr. Emanuel Averbach describes the letter display and the marker system which has been used in tests of short term memory capacity and characteristics at Bell Telephone Laboratories to Miss Virginia Gregory, while Abner S. Coriell operates the controls of the display system.
Dr. Averbach and Mr. Coriell presented a paper to the Spring 1960 meeting of the Optical Society of America (OSA), describing results of experiments with the equipment which have shown that the eye can "remember" much more information in a short time than would be inferred from asking a subject to "read back" information he has seen in a brief flash. Also, the information stored in the temporary memory can be allowed to fade gradually or can be erased selectively by succeeding stimuli, before the viewer is actually aware of what he has seen.

Photo date: 
Spring 1960
Original format: 
2 photographic prints (black and white; 7.5 x 7.75 inches)
Averbach, Emanuel