4
votes
3answers
359 views

Are colors real?

We know that we distinguish colors when they fall on our photo receptors in our eyes and neurons pass its signals to our brain to recognise them as the specific colors. How accurate is it? For ...
4
votes
1answer
120 views

Sensory dissonance: Will the visual or auditory channel win?

Is there any research showing that our visual channel takes precedence over the auditory channel (or vice versa) if there is some dissonance between them? Examples: Say a person driving a car ...
4
votes
2answers
68 views

Eye movement tendencies for shades, sizes, shapes, and colours

I was asked this question yesterday Which of the following statements regarding research principles in visual attention is TRUE? The eyes tend to move from: a. Light to dark (shade) b. Large to ...
8
votes
1answer
301 views

How do people visually recognize their own reflection?

I'm interested in how the brain processes and recognizes the image of the person's own face. A bit of background: A while ago I've developed an overlay-camera like app for iPhone that allows me to ...
6
votes
1answer
301 views

What is the brain power devoted to vision and haptics?

I heard a talk by Vincent Hayward on the sense of touch as a multi-modal system, where he claimed that the brain power devoted to haptics is at least as big as the one devoted to vision. I have found ...
9
votes
1answer
227 views

Is there an effect of visual expertise on eye movements when examining an image?

In the following linked image, you can see the eye movement traces of a subject examining a bust of Nefertiti (I came across this image while reading the following blog). When I was in grade ...
15
votes
3answers
318 views

Is it possible for certain people to perceive colors differently?

What if someone perceives a color as 'red' when it is actually 'green'? Since different people have preferences for different colors, and colors are perhaps constructed in the mind, is it possible ...
10
votes
2answers
415 views

What is the “static” in human vision called?

Sort of like a cheap digital Camera, the human eye has certain feedback that's perceived but doesn't actually exist in the real world; a little layer of Static that's especially noticeable in pitch ...
11
votes
1answer
308 views

Under what conditions does 60hz video produce visual artifacts?

There are some important thresholds of frame rate in video playback that effect whether or not animation appears fluid. This wikipedia page about Visible Frame Rate suggests that a framerate of 60 ...
7
votes
1answer
1k views

Is Apple's iPhone Retina Display really accurate to human eye resolution?

Apple based their Retina Display on the following claim, as cited by Wikipedia: The display has a contrast ratio of 800:1. The screen is marketed by Apple as the "Retina Display", based on the ...
21
votes
3answers
288 views

Why does the human visual system produce a bright patch after staring at a bright light source and looking away?

If a person looks at a bright light source, such as a light bulb or perhaps the sun for a period of time, and then looks away and closes their eyes, they typically see a bright patch in the shape of ...