Denis Pelli is a Professor of Psychology

Psychology

Psychology is the study of the mind and behavior. Its immediate goal is to understand individuals and groups by both establishing general principles and researching specific cases. For many, the ultimate goal of psychology is to benefit society...

 and Neural Science at New York University

New York University

New York University is a private, nonsectarian research university based in New York City. NYU's main campus is situated in the Greenwich Village section of Manhattan...

 studying object recognition and reading. Pelli is famous for his contributions to the fields of visual sensitivity, letter identification, and object recognition. Pelli completed his PhD at Cambridge with Campbell and Robson in 1981. Pelli is known for his work on the Psychtoolbox

Psychtoolbox for MATLAB

Psychophysics Toolbox Version 3 is a free set of MATLAB and GNU Octave functions for vision research. It makes it easy to synthesize and show accurately controlled visual and auditory stimuli and interact with the observer. It has at least twelve thousand active users, an active forum, and is...

, equivalent input noise, QUEST, the Pelli-Zhang video attenuator, and the Pelli-Robson Contrast Sensitivity Chart. The chart, which allows for clinical measurement of contrast sensitivity, is part of the Museum of Modern Art

Museum of Modern Art

The Museum of Modern Art is an art museum in Midtown Manhattan in New York City, on 53rd Street, between Fifth and Sixth Avenues. It has been important in developing and collecting modernist art, and is often identified as the most influential museum of modern art in the world...

's (MoMA) permanent collection. Pelli serves as an associate editor for the Journal of Vision, and has written over 50 publications.