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Research > Perception
Members of the Perception Group use computational, electrophysiological and behavioral techniques to study a variety of issues in perception, with a strong focus on vision.
State-of-the-art facilities include computer-based laboratories for precise control of visual stimuli, data collection and analysis and modeling. Laboratory equipment includes computer-controlled displays for studies of color and form, a system for high-density EEG measurement with cortical source localization, a Wheatstone stereoscope, eyetrackers, several Maxwellian-view optical systems, equipment for ERG measurement in the mouse, rat and human, and equipment for basic mouse psychophysics. Ties with colleagues at nearby institutions (such as Boston University, Harvard University and the Schepens Eye Research Institute) expand both the physical and intellectual resources of the group.
Specialization: Visual Perception and Psychophysics Laboratory: Vision Laboratory
Laboratory: Petrov's Laboratory Website
Specialization: Visual Perception and Psychophysics Laboratory: Laboratory for ERG Studies
Specialization: Visual Perception Laboratory: Visual Perception Laboratory
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Facilities
Dr. Eskew collects psychophysical data and employs it in the development of
quantitative models of visual processes. Current interests include classical
as well as "higher-order" opponent-color models for color appearance,
long-term chromatic and sensorimotor adaptation effects on color perception,
and studying the relationship between response time and threshold
measurements in vision.
Dr. Yury Petrov studies low-level visual mechanisms in humans,
including stereoscopic vision, shape processing, and contextual
effects, such as visual masking and crowding. His present interests
include the role of attention in crowding, physiological mechanisms
of overlay suppression and surround suppression, and neural basis of
perceptual switches for ambiguous visual stimuli. His research is
based on psychophysical methods accompanied by high-density EEG
recordings with cortical source localization.
Dr. Naarendorp’s research is aimed at understanding
the relationship between neural activity in the retina and vision. His
work involves both human and animal subjects. Experiments conducted
on human beings are psychophysical in nature. On animals he uses psychophysical,
electrophysiological and pharmacological techniques. For both humans
and animals, Naarendorp seeks to describe response characteristics
of photoreceptors and their associated retinal pathways. Studies of
this kind are important from the standpoint of basic science because
they provide insight into the early stages of information processing
by the nervous system.
Dr. Reeves studies human visual perception and visual
information processing. He is presently researching the effects of attention
and imagery on visual perception, visual recognition, color vision,
adaptation, eye movements and visual masking. Psychophysical methods
are used to answer theoretically motivated questions in each area.