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Exam 6: Sensation and Perception

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Question 211

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Which of the following is NOT an accurate statement regarding the visual system?

A) The front of the eye is covered by the transparent cornea.
B) The retina is actually an extension of the brain.
C) The lens of the eye works by changing its shape, becoming more or less curved.
D) The centre of the fovea contains only rods.

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Question 212

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Most colour deficient people see the world as yellowish green.

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Question 213

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Which of the following is best supported by research?

Research on rods and cones has revealed that:

Which of the following statements is NOT accurate?

Contrast the reactions of adults who were born deaf and then received cochlear implants to the reactions of adults who became deaf later in life and then received the implants.

After taking your best friend to the airport, you stay to watch the plane take off. As you watch it, the plane seems to become smaller and smaller. Why is it that you don't perceive the airplane, and your friend, as shrinking?

As she studies in the library, Beatrice is not aware of the pressure of her watchband on her wrist. This is called:

Testing an infant's perception of depth requires ingenuity, but Gibson and Walk were able to design a procedure in order to test infants on a "visual cliff." Explain how they created a "cliff" and describe the results of their research.

When measuring absolute threshold, reliable detection is said to occur when a person can detect a signal 50% of the time.

In Chapter 4 we learned that the peripheral nervous system has bundles of nerve fibres (axons and sometimes dendrites). Most of these nerves enter and leave the spinal cord, but the cranial nerves connect directly to the brain. Describe the role played by the cranial nerves that are involved in the senses of vision, hearing, and smell.

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. In what way did the results of this study contribute to an understanding of critical periods in development? What evidence do we have of critical periods for sensory development in human beings?

Match the definitions with the appropriate term. -A condition in which stimulation of one sense also evokes another.

If a colour is completely saturated, then it contains only a single wavelength.

Pain remains a mystery in the field of psychology. Describe the gate-control theory and note its limitations. Include a discussion of phantom pain in your answer. How has Melzack revised this theory?

In a signal-detection task, the participant says that she doesn't detect a signal but a signal was present. This is called a:

The gate-control theory of pain has difficulty explaining:

Dutch researchers have found a relationship between citrus scents and cleaning behaviour.

In many of the early sensory deprivation studies, the experimental procedures themselves aroused anxiety.

Regarding the puzzles of perception discussed in the text, there is ample evidence for ________, but a lack of it for ________.