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7 June, 17:55

When we initially detect physical stimuli, such as odors, light, and sound, we call this Group of answer choices a. perception. b. sensation. c. absolute threshold. d. difference threshold.

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  1. 7 June, 20:42
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    Answer: B. Sensation

    Explanation:

    Sensation is input about the physical world obtained by our sensory receptors, and perception is the process by which the brain selects, organizes, and interprets these sensations. In other words, senses are the physiological basis of perception. Perception of the same senses may vary from one person to another because each person's brain interprets stimuli differently based on that individual's learning, memory, emotions, and expectations.

    The sensitivity of a given sensory system to the relevant stimuli can be expressed as an absolute threshold. Absolute threshold refers to the minimum amount of stimulus energy that must be present for the stimulus to be detected 50% of the time.

    Sometimes, we are more interested in how much difference in stimuli is required to detect a difference between them. This is known as the just noticeable difference (jnd) or difference threshold.
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