For questions regarding the visual system, which serves to transduce light energy into neural impulses, or regarding visual perception, how we interpret such incoming visual information.

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32 views

Are representations of unattended objects “bound”?

In our phenomenal experience, different features of an object, like shape and color, seem to be "bound" together into a single percept, even though those features are represented in different parts of ...
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1answer
159 views

Are there any cognitive models for image interpretation?

Are there any cognitive models which can be used for image interpretation. I have tried to find some specific models which can be used for image interpretation but have not been able to find any ...
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36 views

Why do I see those static pictures as they are moving [duplicate]

Have a look at the following static pictures: There are more of them here. On the same website this PDF describes findings.However I could not find any explanation why this phenomenon happening. ...
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70 views

Optical illusions : human universal vs environmental influences [closed]

It's well known today that the susceptibility to optical illusions are influenced by the environment: multiple studies with the Müller-Lyer illusion conducted in Zambia proved this environmental ...
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42 views

What is the source for the W3C's Contrast Ratio formula?

The Word Wide Web Consortium (W3C) has a formula for the contrast ratio of any two arbitrary colors, which they use to set minimum standards for text legibility: ...
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84 views

Progress on Arnheim's perceptual forces in vision

In the second edition of Rudolf Arnheim's Art and Visual Perception: A Psychology of the Creative Eye, published in 1974, the opening chapter on "balance" begins with a discussion of "perceptual ...
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1answer
54 views

Is consciousness a sub product of the brain or is there a duality? [duplicate]

I am trying to understand what consciousness is, based on my basic knowledge of our senses, artificial intelligence (computer vision, specifically) and some philosophy. Here's my reasoning: As far as ...
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1answer
41 views

Does transparency have its own visual channel?

Referring to (for example) Visual Thinking for Design, the book discusses various low-level processing channels in the brain. Colour and orientation are two examples. I wonder if transparency is ...
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1answer
78 views

Effective sampling rate in human visual system

The [stroboscopic effect][1] is often explained as one of the problems of sampling. If sample rate is too low, you might have the impression of the signal frequency being low or even reverse. There ...
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1answer
93 views

What are the visual cognitive abilities of a new born?

We know that a newborn (3 days or less) can mimic facial expressions such as tongue protrusion and head movement. This means that the child can detect faces, segment various parts of face like tongue, ...
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1answer
48 views

A subtle test for color-blindness

Is there a test method of proving a person being color-blind, without letting the test subject know, that he/she is being tested? E.g. showing the person cards with colored dots like depicted here is ...
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1answer
28 views

What is the relationship between neurotransmitter release and resting potential in retinal bipolar cells?

Retinal bipolar cells are known to have resting potentials from which they can become more or less polarized. What I'm wondering is whether a bipolar cell's neurotransmitter-release rate is zero when ...
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1answer
75 views

Is all vision based on movement?

This is something I recall from a class on human perception: vision is based on "movement" or change in what hits receptors, so if your eyes were perfectly still you couldn't see, but always-present ...
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44 views

Pupillometry: how long needs the pupil to respond towards an cognitive stimuli?

I would like to know if somebody could give me some literatur advice about the latency response of the pupil after a cognitive stimuli. I know that the light reflex response is quiet fast compared to ...
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1answer
50 views

3D Glasses Aftereffect

I am wearing a pair a 3D glasses. The left lens is red and the right lens is cyan. However, when I take them off, my left eye sees in cyan and my right eye sees in red, the complete opposite of the ...
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57 views

What creates the experience of “erasure” in visual perception?

When I was reading about object substitution masking, the author mentioned that sometimes we experience "erasure" of masked object. I sometimes have this kind of experience myself. It looks like the ...
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257 views

How can schemas be applied to website design? [closed]

If a "schema is a cognitive framework or concept that helps organize and interpret information. Schemas can be useful because they allow us to take shortcuts in interpreting the vast amount of ...