Sensation

90. Unpleasant stimuli may raise the threshold for recognition. This phenomenon is called

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89. One of the more touch-sensitive areas of the human body is the

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88. The fact that we see negative afterimages supports which theory of color vision?

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87. Black and white vision with greatest sensitivity under low levels of illumination describes the function of

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86. __________ is concerned with relating changes in physical stimuli to corresponding psychological sensations.

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85. The theory of color vision which states that the visual system analyzes information into "either-or" messages is the __________ theory.

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84. Melzack and Wall's theory that some pain messages can block other pain messages is called

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83. Skin senses, kinesthetic senses, and vestibular senses comprise which sense system?

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82. A "silent" dog whistle takes advantage of a characteristic of sensory systems known as

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81. One of the characteristics that all sensory systems have in common is

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