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Exam 5: Sensation and Perception

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Question 121

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While cleaning his right ear a little too vigorously,Steve accidentally punctured his eardrum and is unable to hear out of this ear.Steve's injury would be classified as an example of:

A) conduction deafness.
B) temporal lobe deafness.
C) nerve deafness.
D) localized deafness.

E) A) and D)
F) B) and C)

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Question 122

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Sammy is a little boy who was born and raised in a large city.When his parents sent him to summer camp at the age of five,Sammy had never been in the country before or seen animals other than on TV.While driving through the countryside on the way to camp,Sammy saw an animal off in the distance.He noticed the four legs,the long tail,and long mane and decided it must be a horse.Sammy was primarily using __________.

A) bottom-up processing
B) top-down processing
C) central processing
D) individual processing

E) A) and D)
F) All of the above

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Question 123

Multiple Choice

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The process in which the qualities of a sensory stimulus are converted into nerve impulses is called:

Provide an example of how signal detection research is used to determine an absolute threshold and a difference threshold for vision or hearing.Include in your answer a definition of each.Define the term "decision criterion" and discuss at least two factors that can affect it.

A limitation of Weber's law is that:

Ben's grandfather has not been able to read Ben a bedtime story for quite some time now.Grandpa says his eyes are just getting tired very early in the evening but Ben knows that his grandfather is unable to focus on reading because the lens in his eyes have become unable to focus the words directly onto the retina.His grandfather's lens are:

You have just prepared a bath for yourself and as you are getting in,the water feels very hot,almost too hot.However,you continue to ease yourself into the tub and pretty soon,even though it has remained the same temperature,the water no longer feels so hot.The characteristic of sensory neurons that is responsible for this phenomenon is known as:

Someone who suffers from hyperopia:

The initial stages of dark adaptation (e.g.,the first 5 minutes) are controlled by the cones,while the second or later part of the darkness adaptation curve (e.g.,after 5 minutes) is determined specifically by the functioning of the _____________.

You have just arrived at the library to study and just as you are starting to read your assignment,a group of students at a nearby table begin a loud conversation.At first,these extra sounds annoy you,but you return to your reading and pretty soon,you are no longer aware of them,even though the students are continuing to talk.This example is most similar to what is known as:

Motion parallax and relative size are examples of binocular depth cues.

Fear and expectation were discussed as playing a significant causal role in the creation of:

Two senses whose receptors respond to chemical molecules rather than energy forms are:

The depth perception cues that require the use of both eyes are called __________________.

In attempting to decide which of two objects is farther away,you notice that one object has a finer grain than the other.You decide that the one with the finer grain is further away.What monocular depth cue are you making use of?

The smallest difference between two stimuli that people can perceive 50% of the time is called the absolute threshold.

The fact that the face of a friend looks the same whether you are viewing it from directly in front or from the side is best accounted for by:

Sound localization is made possible by how the nervous system processes the time and intensity differences of sounds arriving at the two ears.

Kevin is practicing his new saxophone when his Dad walks in the room and praises Kevin for the good job playing the song,"Three Blind Mice." Even though Kevin's version of the tune was unlike any other version he had ever heard,his Dad was able to recognize the familiar tune because of:

The technical term for the sensation of taste is ____________.