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Exam 6: Sensation and Perception

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Question 71

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The smallest quantity of physical energy that can be reliably detected by an observer is called the:

A) just noticeable difference.
B) absolute threshold.
C) psychophysiological threshold.
D) difference threshold.

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Question 72

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Visual receptors that are involved in colour vision are called cones.

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Question 73

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In regard to sound, a pure tone consists of several subwaves with different frequencies.

When Mary looks at the following display she tends to see horizontal rather than vertical rows of happy faces. This happens because:

Seamus is having difficulty organizing the sounds he hears, and so he cocks his head. Seamus is actively trying to determine:

Müller's doctrine of specific nerve energies describes a form of ________ coding.

When Becca sees eight candies on the table that are placed like this O O O O O O O O she asks which two children get the candies. How would a Gestalt psychologist explain Becca's tendency to view the candy in two groups rather than as eight separate candies?

Our senses are designed to respond to change and contrast in the environment.

As you listen to a new CD, you experience the music as a unified whole and not as separate musical notes. This auditory experience could best be used to illustrate:

The saturation (colourfulness) of a visual stimulus is related to the ________ of light.

Sound waves are collected by the outer ear and channelled down the auditory canal. Describe the major structures of the ear and describe the role each plays in the process of hearing.

Sensory neurons ________ messages to convey different types of information using nerve impulses.

Visual receptors that respond to dim light are called rods.

Most people who chronically have trouble tasting things have a problem with smell, not taste.

The authors compare the functioning of the sensory receptors to the battlefield experiences of military scouts, field officers, and generals. Using this metaphor, explain the process of sensation.

Among the following individuals, the most likely to be colour deficient is:

Like human infants, kittens are born with the ability to detect horizontal lines and vertical lines. In one famous study, kittens were exposed to either vertical or horizontal black and white stripes. Special collars kept them from seeing anything else, even their own bodies. Describe the results of this research study.

At the orientation for first-year students April felt overwhelmed by the number of people, the multiple conversations, and the forms that needed to be completed. April is experiencing:

There are about 120 to 125 million rods and about 7 or 8 million cones in the retina.

The intensity of a sound wave's pressure corresponds to the amplitude, or maximum height, of the wave.