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Visual Perception Quiz 2

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Presentation on theme: "Visual Perception Quiz 2"— Presentation transcript:

1 Visual Perception Quiz 2

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Perception refers to the process by which Sense organs transmit information to the brain for initial processing Perception receptors gather information from the environment The brain organises and interprets sensation The brain selects which stimuli to respond to

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The two major processes occurring in the eye are Selection and perception Reception and transduction Organisation and interpretation Transduction and interpretation

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A person who loses sight in one eye could still perceive depth and distance by using the cues of Interposition and relative size Convergence and retinal disparity Linear perspective and convergence Texture gradient and retinal disparity

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Accommodation is Is a binocular depth cue Is possible because our eyes are 6 to 7cm apart Enables an image to be sharply focused onto the retina Enables our eyes to turn inwards to focus on an object

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Imagine that you are in a museum. A statue is in the middle of the room. You walk around it and examine it from many places in the room. The retinal image of the statue changes, but you do not perceive the statue as changing. This is known as Convergence Motion parallax Interpositioning Perceptual constancy

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Three types of perceptual constancy are: size, texture and form Form, shape and texture Size, shape and brightness Brightness, texture and form

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Visual perception processes begin when _____ energy is changed into _____ energy. chemical; electromagnetic Electromagnetic; electrochemical Electromagnetic; chemical Electrochemical; electromagnetic

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In the visual perception process, which of the following occurs first? Selection Reception Transmission Feature detection

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In visual perception, the process of transduction takes place in Lens Pupil Occipital lobe photoreceptors

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If you move an object closer to the viewer It has little or no effect on the viewer’s perception of the object’s size It causes the viewer to perceive the object as getting bigger It changes the viewer’s perception of the object’s shape It decreases the size of the retinal image of the object

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The pattern on solider’s uniforms is designed to assist camouflage in a jungle. The camouflage occurs because The principle of figure-ground is applied The principle of proximity is applied The principle of figure-ground is not applied The principle of proximity is not applied

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Jemima has had an operation on one eye and has to wear a protective patch. She will probably have some difficulty perceiving the distance of objects because she cannot use Retinal disparity Accommodation Gestalt principles Pictorial cues

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A number of depth cues are used when perceiving the Ames room illusion. Which of the following is a depth cue that is NOT used? figure-ground Convergence Accommodation Linear perspective

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Visual acuity is greatest In the fovea where there are only rods In the fovea where there are only cones In the area of the retina where there are equal numbers of rods and cones In the area of the retina where the optic nerve attaches

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The process of converting one kind of energy to another by cells in the eye is called Feature detection Perceptual organisation Transmission Transduction

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The adjustment of the shape of the lens to focus on a near object is known as Convergence Retinal disparity Accommodation Transduction

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An open drawer is perceived as having the same shape when seen from the front, the side, or from above. This is an example of Perceptual constancy Perceptual set Similarity Visual illusion

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Visual reception involves the Delivery of the visual information to the appropriate lobe for interpretation Detection of light by the photoreceptors on the retina Transmission of a visual image to the brain Interpretation of the visual information in the brain

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Luisa woke at night in her darkened room. At first she could not see anything, but after a few minutes, due to the _____ in her eyes, she could see the shape of her dressing gown hanging on the door. When she turned on the light she could see the colour of the dressing gown, due to the action of her _______. Cones; rods Rods; cones Rods; rods Cones; cones

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A person with an eye patch over one eye for a long period of time could still perceive depth and distance by using the cues of Interposition and relative size Texture gradient and retinal disparity Convergence and retinal disparity Linear perspective and convergence

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Mark is hanging his red shirt, blue shirt and white shirt outside in the sun. Suddenly the sun is covered by a large, dark cloud. The statement that best describes the effect on Mark’s visual perception is The white shirt appears dimmer than the blue and red shirts The red and blue shirts appear dimmer than the white shirt The red and white shirts appear brighter than the blue shirt All three shirts appear as bright as they did previously

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When an object is identified as a figure separate from its background, the object is more likely to Have a distinct shape Be placed behind another object Be just as noticeable as its background Be less dominant than its background

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Accommodation Enables our eyes to turn inwards to focus on the object Is a binocular depth cue Enables a sharp or focused image to be produced on the retina Is possible because our eyes are 6 to 7cm apart

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During accommodation the _____ changes shape and ______ when focusing on a far object pupil; contracts Pupil; dilates Lens; bulges Lens; elongates

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________ are misinterpretations of visual stimuli that tend to be perceived by most people consistently over time, even with knowledge and understanding of this misinterpretation. Perceptual sets Visual illusions Delusions Hallucinations

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The muller-lyer illusion is More noticeable when the two lines of equal length are vertical rather than horizontal More noticeable when the two lines of equal length are horizontal rather than vertical More noticeable when there are lines with inward or outward directed angles (arrowheads or fishtails) at the ends of the two lines rather than with inward or outward directed semicircles or circles Just as noticeable when there are lines with inward or outward directed angles (arrowheads or fishtails) at the ends of the two lines rather than with inward or outward directed semicircles or circles

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Which of the following is a depth cue for visual perception? Proximity Similarity Accommodation closure

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The difference in images on the retina of each eye when an observer is viewing something is called Accommodation Linear perspective Texture gradient Retinal disparity

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A visual illusion is best described as A consistent misinterpretation of a real sensory stimuli A trick involving the visual perception system A false belief despite obvious proof that what is being looked at is incorrect A perception that occurs without external stimulation of the eye

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In the visual perception system, information travels from the retina via the optic nerve to the brain in a process called Transduction Reception Feature detection transmission


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