Sensation and Perception


Sensation & Perception
This site contains a collection of tutorials on the basic principles of sensation and perception, including depth cues and processing in visual perception.

Sensory Research Institute
A research institute dedicated to developing a comprehensive understanding of responses to airborne chemicals.  Includes study of animal olfaction, environmental, health, nasal stimulation, and more.


See the world through the eyes of a honeybee.

Looking for Madam Tetrachromat: Do Mutant Females Walk Among Us?
Article about a woman found to have 4 channels of color vision rather than the normal 3 of trichromats.

This is the Webvision home page. It presents a detailed discussion of the organization of the vertebrate retina. It discusses everything you want to know and understand about vision and the role of the retina in vision, including retinal circuits, the photoreceptors, the fovea and color vision, and facts and figures about the human retina.

Webvision-The Organization of the Retina and Visual System
A site sponsored by the John Moran Eye Center at the University of Utah. Includes everything you want to know about the retina and vision, including--anatomy of the retina, degenerative diseases, photoreceptor cells, visual responses, circuitry, color vision, and more.


Alexander Graham Bell Association for the Deaf and Hard of Hearing
The world's oldest and largest membership organization promoting the use of spoken language by children and adults with hearing loss.

American Speech-Language-Hearing Association (ASHA)
The professional, scientific, and credentialing association for over 110,000 audiologists, speech-language pathologists and scientists.

Cochlear Implant Association, Inc
The Association provides support and information on cochlear implants.

National Association of the Deaf
The oldest and largest constituency organization safeguarding the accessibility and civil rights of 28 million deaf and hard of hearing Americans.

The Listening Centre-Johns Hopkins University
The first clinical facility in North America to offer listening training programs, based on the Tomatis method of sound stimulation.  The Center helps people with problems ranging from music and singing skills, foreign language acquisition, learning disabilities, ADD, PDD, and more.


10 Smell Myths: Answers to Frequently Asked Questions
A summary of research findings on smell.

Links about people who have the inability to smell.  Site developed by Dr. Karl L. Wuensch at East Carolina University, Department of Psychology.

Relationship between Taste and Smell
A paper written by a student on the subject.

Senses resources - directory of Senses related websites.


Perceptual Processes and Laws

Max Wertheimer and the Laws of Perceptual Organization and Grouping
Explore the principles of gestalt psychology.

Perceptual Processes
Includes an illusions gallery with many interesting concepts. Also contains perceptual demonstrations at the Exploratorium, along with postcard exhibits and vision and art.


Ames Room
A detailed explanation about perceptual illusions as demonstrated by the Ames Room.

Guiseppi Arcimboldo's Art of Illusions
The artist was born in Milan where he started his career by working on designs for windows for the cityís cathedral. He worked in his hometown, specialising mainly in religious paintings, before being called to Vienna in 1562 by Maximilian, the eldest son of the Emperor Ferdinand I. For the next twenty-five years he served as court painter to the Emperor Maximilian II and his son, the Emperor Rudolf II, both in Vienna and in Prague, before returning to Milan in 1587.

Grand Illusions
A site for the inquiring mind with optical illusions, scientific toys, visual effects and even a little magic.

M.C.Escher -The Official Website
Learn about the life and work of M.C.Escher, an amazing artist who captured perceptual principles in his art. This site was developed in celebration of 100 years of Escher. Includes explanations, a biography, links, and more.

Illusions, Perception and Cognitive Science
Illusionworks Inc., is the most comprehensive collection of optical and sensory illusions on the WWW. View the video by Al Seckel and also explore illusions and photography.  This site contains numerous interactive demonstrations, up-to-date and reliable scientific explanations, school projects, illusion artwork, interactive puzzles, 3D graphics, suggested reading lists, bibliographies, perception links, etc. Provides information in introductory and advanced levels. Go to the advanced level.

The site include topics and examples of: impossible figures and objects, ambiguous illusions, motion ambiguity, size constancy illusions, camouflage, stereograms, poggendorf illusions, 3D images and more.

There also is an extensive collection of art, illustrating various artists depictions of perceptual principles in art.

The site is sponsored by the Shimojo Laboratory at the California Institute of Technology and Illusion Works, LLC.

OK Go: Is the Writing on the Wall?
OK Go is known for creative videos, but this is the bandís richest musical collage of optical illusions so far. The most amazing part is that it was done Ö in one take!

Optical Illusions and Visual Phenomena
A fascinating site developed by Dr. Michael Bach at the University of Freiburg in Germany.

Perceptual Processes
Includes an illusions gallery with many interesting concepts. Also contains perceptual demonstrations at the Exploratorium, along with postcard exhibits and vision and art.

Provides a detailed discussion and illustrations of all types of illusions. Includes a presentation of impossible figures and objects; ambiguous illusions; ambiguous images; motion ambiguity; distortion illusions; camouflage illusions; funny places; afterimages; motion aftereffects and lateral inhibition; color and shadow illusions; facial illusions; and, auditory illusions.


I Listen to Color

OK Go: Is the Writing on the Wall?
The Psychology of Perception in Action by a National Group.