SENSATION AND PERCEPTION
BASIC CONCEPTS OF SENSATION AND PERCEPTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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an object’s perceived color is influenced by its surrounding objects
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the retina has three types of color receptors
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the brain processes information about color and shape simultaneously
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color vision depends on pairs of opposing retinal processes
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Detailed explanation-1: -The phenomenon of color constancy best demonstrates that: an object’s perceived color is influenced by its surrounding objects.
Detailed explanation-2: -Color constancy refers to our ability to perceive colors as relatively constant over varying illuminations (i.e. light sources). For example, a red apple will still look red on a sunny day or cloudy day – or in a grocery store or a home.
Detailed explanation-3: -This phenomenon, called size constancy, is accomplished by combining retinal image size and distance information in our brain. We demonstrate that a large population of V4 neurons changes their size tuning depending on the perceived distance of a visual stimulus derived from binocular disparity.
Detailed explanation-4: -Lightness constancy refers to the observation that we continue to see an object in terms of the proportion of light it reflects rather than the total amount of light it reflects. That is, a gray object will be seen as gray across wide changes in illumination.