SENSATION AND PERCEPTION
VISION SENSORY AND PERCEPTUAL PROCESSING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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are necessary for daytime vision.
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are necessary for colour vision.
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are necessary for visual acuity.
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are necessary for vision in dim light.
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Detailed explanation-1: -There are two types of photoreceptors in the human retina, rods and cones . Rods are responsible for vision at low light levels (scotopic vision). They do not mediate color vision, and have a low spatial acuity.
Detailed explanation-2: -There are two types of photoreceptor cells in the retina: cones and rods. The cones are responsible for sharp color vision in daylight. The rods provide vision in dim light.
Detailed explanation-3: -Rods and cones have distinct light-absorbing properties. The rods are specialized to see the objects in dim light like in evening and night. These cells have rhodopsin protein pigment in their rods. This pigment can absorb the reflected dim light from objects in dark.
Detailed explanation-4: -rod, one of two types of photoreceptive cells in the retina of the eye in vertebrate animals. Rod cells function as specialized neurons that convert visual stimuli in the form of photons (particles of light) into chemical and electrical stimuli that can be processed by the central nervous system.