Exam 4: Sensation and Perception-Part C

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Nontasters tend to have a greater risk of heart disease than do supertasters.

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Pheromones that affect sexual behavior activate neurons in the hypothalamus.

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Recent research has demonstrated that homosexuals are more sensitive to pheromones than are heterosexuals.

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Hair cells line the basilar membrane.

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The valence-centered approach suggests odors first elicit emotions that subsequently aid in the identification of the odorous object.

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Perceptual constancy is one reason why humans find it difficult to perceive changes in stimuli.

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A single taste bud will contain taste receptor cells for only one of the five possible taste receptors.

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We tend to perceive objects higher in our visual field as closer than objects lower in our visual field.

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The amplitude of a light wave determines its purity or richness of color.

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Our perceptual systems respond more strongly to changes in the level of stimulation than to constant stimulation.

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Visual information passes through the thalamus before reaching area VI.

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The dorsal visual stream processes the shape and identity of an object.

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The blind spot is an area of the retina that lacks both rods and cones.

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According to feature-integration theory,attention is not required to detect the size,shape,and color of an object.

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You can easily tell the difference between 1 and 2 pounds,but not 200 and 201 pounds,illustrating Weber's Law.

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The sensory threshold of being able to detect a teaspoon of sugar dissolved in 2 gallons of water is an example of a difference threshold.

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When confronted with two or more possible interpretations of an object's shape,we tend to perceive the simplest one.

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About 50% of the adult population are nontasters.

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Researchers have found that a specialized area in the temporal lobe responds only when faces are presented in the visual field.

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When combining light,mixing a red spotlight and a green spotlight creates the perception of yellow light.

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