Distortions of Perception

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Flashcards about distortions of perception, including visual illusions, agnosia, taste perception, synaesthesia, and spatial neglect.

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23 Terms

1
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What is a perceptual distortion?

A mismatch between a perceptual experience and physical reality.

2
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What do visual illusions demonstrate?

Cases in which reality is misperceived for no immediately apparent reason.

3
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What is a visual illusion?

A misunderstanding of external visual stimuli due to a distortion or mistake in interpretation.

4
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What is the Müller-Lyer illusion?

A visual illusion where two lines of equal length are incorrectly perceived as different lengths.

5
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What is the carpentered world hypothesis?

An explanation for the Müller-Lyer illusion based on familiarity with architectural features.

6
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What is the Ames room illusion?

An illusion where people appear to change size based on their position in a trapezium-shaped room.

7
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What causes the Ames Room illusion?

The unusual construction of the room, where one side is longer and higher than the other which distorts visual perception principles

8
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What is the Spinning Dancer illusion also known as?

Silhouette illusion

9
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How is the spinning dancer illusion explained?

The lack of depth cues to distinguish between the front and back of the silhouette.

10
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What is Agnosia?

The loss or impairment of the ability to recognize and identify objects, persons, sounds, or other sensory stimuli despite otherwise normally functioning senses.

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What is Apperceptive visual agnosia?

An inability to accurately perceive visually presented stimuli and to recognize parts of stimulus.

12
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What is Associative visual agnosia?

An inability to associate a visual stimulus with stored information about objects in memory.

13
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What is Prosopagnosia?

An inability to recognize familiar faces, including their own.

14
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What is Simultanagnosia?

An inability to recognize more than one object at a time in a scene.

15
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What is Topographical agnosia?

An inability to find one’s way around familiar environments.

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What is Colour agnosia?

An inability to identify and distinguish between different colours, despite normal basic colour vision.

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What is Agnosic alexia?

An inability to recognize or comprehend written or printed words.

18
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What is a supertaster?

A person who is more sensitive to certain tastes, especially bitter, than most others.

19
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What is Miraculin?

A protein found in miracle berries that causes sour foods to taste sweet.

20
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What influences the flavor we experience?

Expectations based on preconceived ideas and perceptual Set.

21
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What is texture?

property of food or beverage that is felt in the mouth and contributes to flavour along with taste, vision and other sensations

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What is Synaesthesia?

A perceptual experience in which stimulation of one sense produces additional sensations in another.

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What is Spatial Neglect?

A neurological disorder whereby individuals are unable to notice anything either on their left or right side even though there may be no sensory loss