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Exam 4: Sensation and Perception

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Question 1

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When Clyde is pricked by a needle, the sharp pain signal is carried to the brain by ____fibers. The next day, Clyde feels a dull ache around the spot where he was pricked; this information is carried by ____ fibers ​

A) A-delta; C
B) C; A-delta
C) A-delta; A-delta
D) C; C

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Question 2

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You know that your friends Manuel and William are the same height. You use the fact that Manuel's image on your retina is smaller than William's to conclude that Manuel must be farther away from you. Which depth cue are you using?

A) gradient of texture
B) interposition
C) relative size
D) height in the visual field

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Question 3

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With bottom-up processing, a person is using ____ to recognize an object. With top-down processing, recognition is based on the use of ____. ​

A ____ is a system that translates data from outside the nervous system into neural activity, thus giving the brain information about the world.​

During an intense game of volleyball, Shay slipped and banged her knee on the floor. "Ouch!" she cried, as she wishes her brain would produce more ____. ​

If our perceptual system did not follow the organizing principle of constancy, ____. ​

If sensation equals raw data, then perception equals ____. ​

Inspector Holmes and his trusty assistant, Watson, are snooping around a dark, deserted house in London. Watson suddenly screams, "Holmes! I thought I just saw a flicker of light!" Holmes turns to him and says, "No, my dear boy. You must have been interpreting a random firing of sensory neurons as a stimulus." Holmes is describing ____. ​

The main question behind the study of depth and motion perception is ____. ​

​Vision is considered a sense because it ____.

Participants in an experiment are asked to look at pictures of driving scenes taken from the driver's point of view. When the scenes are changed, participants can easily detect some small changes, such as wording on a traffic sign. However, they often miss large irrelevant changes such as a disappearing building. This is because of ____. ​

The Acme Corporation has created a pair of specialty goggles that allow the wearer to change the overall intensity of the wavelengths of light coming through the goggles. This action will alter the wearer's sensation of light by changing its ____. ​

It would be impossible for most students to listen to a physics lecture, read a literature book, and count backward from 500 to 1 simultaneously. This is primarily because attentional resources are ____. ​

Indiana looks at the ground near his feet. He hears a hissing sound and sees a long, thin shape with scales. From this information only, he determines the object is a snake. He is using ____ processing. ​

Sascha is in a marching band. Because the band members move together identically, the audience perceives waves of motion. Sascha's band director has used the Gestalt principle of ____ to cause the audience to perceive the waves of motion. ​

Little Erika picks up a spider, carries it to her mother, and asks, "Mommy, what is this little, soft, cuddly thing?" Little Erika's inability to recognize what the spider is or the potential danger of picking it up demonstrates that perception is ____. ​

When little Rosario quickly flipped the pages of her new "flip" book, Sniffy the rat appeared to run around, eat cheese, and scratch himself. Rosario's perception of Sniffy's movements is due to ____. ​

The process of translating the physical properties of a stimulus into a pattern of neural activity that allows us to identify those properties is known as ____. ​

When he watches the movie Halloween , Julio gets creeped out by the music. When you laugh at him, he says, "Those repetitive high notes on the piano scare me out of my mind! Even if I can barely hear the music, it still freaks me out." Julio is referring to the ____ of the music. ​

As electromagnetic radiation enters the eye, it is transformed by the accessory structures of the ____ before transduction occurs. ​