Tag Archives: vision

like a finger pointing, denouncing

At this level, all structures are dissolved, or, rather, those that constituted the essence of the clinical gaze are gradually, and in apparent disorder, replaced by those that are to constitute the glance. And they are very different. In fact, the gaze implies an open field, and its essential activity is of the successive order […]

A system for detecting an accessible bug

We have described each of the operations on the retinal image in terms of what common factors in a large variety of stimuli cause response and what common factors have no effect. What, then, does a particular fiber in the optic nerve measure? We have considered it to be how much there is in a […]

You are green

“As I recovered at home, colour started slowly creeping back into my life, whispering around corners. This was a very perplexing time, for often I only felt I was seeing a colour but was unable to identify it. I would stare endlessly at trees and lamp-posts, desperate to match the colour I believed was there […]

The screen is looking at you in the eyes

Computer vision syndrome (CVS) is a condition resulting from focusing the eyes on a computer or other display device for protracted, uninterrupted periods of time. Some symptoms of CVS include headaches, blurred vision, neck pain, fatigue, eye strain, dry eyes, irritated eyes, double vision, vertigo/dizziness, polyopia, and difficulty refocusing the eyes. In CVS, the screen […]

Escape from the monochrome room

“Imagine a girl called Mary. She is a brilliant neuroscientist and a world expert on colour vision. But because she grew up entirely in a black and white room, she has never actually seen any colours. Many black and white books and TV programmes have taught her all there is to know about colour vision. […]

The Variability of Vision

LATE IN 1967 a book was published in England which is as charming as it must be fascinating to all who are interested in the theory and practice of interpretation. Its principal author is the Dutch naturalist and ethologist Niko Tinbergen, who combined with a friend and artist to photograph the tracks left in the […]

Upside-down inversion goggles experiments

Living In A Reversed World documents an experiment by Erismann & Kohler during which the subjects were required to wear goggles transforming their perception, between six to 124 days. The film is narrated by James J. Gibson. More on the experiment: http://www.awz.uni-wuerzburg.de/en/archive/film_photo_and_tone_archives/video_documents/th_erismann_ikohler