final.c.a-key - File = E:\p355\old\win09\final.c.a-key.doc...

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File = E:\p355\old\win09\final.c.a-key.doc 1 John Miyamoto Email: jmiyamot@u.washington.edu http://faculty.washington.edu/jmiyamot/p355/p355-set.htm Psych 355: Introduction to Cognitive Psychology Winter 2009 Psychology 355: Final Examination, ANSWER KEY, Form C 1. Information is transmitted from one neuron to a contiguous neuron by what process? a) Î Chemicals called neurotransmitters are released by one neuron and absorbed by contiguous neurons at specialized neural structures called synapses. b) Electricity is transmitted from one neuron to another at places where they touch each other. c) Electricity that is flowing through one neuron creates a magnetic field that induces an electrical current in adjacent neurons. d) Neurons release pheromones into the blood or lymph system. These pheromones are absorved by other neurons. 2. Suppose that neuron A provides input to neuron B at a synapse. Neuron A is excitatory with respect to neuron B if: a) neuron B fires whenever neuron A fires. b) neurons A and B tend to fire in synchrony. c) Î increased firing of neuron A produces increased firing of neuron B. d) increased firing of neuron A produces decreased firing of neuron B. 3. The behavioral approach to the study of mind refers to what? a) the use of behaviorist methods, like reinforcement conditioning, to shape behavior. b) Î inferring cognitive processes and mental representations from observed behavior under specified conditions. c) measuring both behavior and physiology and explaining cognition in terms of physiology. d) explaining behavior by means of computer simulations of the behavior. 4. Reaction time refers to the time between the of a stimulus and a subject's response to the stimulus. What is the missing word? a) perception b) Î presentation c) recognition d) awareness 5. Blood flow usually in areas of the brain that are activated by a cognitive task. a) attenuates b) fluctuates c) Î increases d) decreases
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File = E:\p355\old\win09\final.c.a-key.doc 2 6. According to Biederman's Recognition-by-Components model, what is the role of the geon in perception? a) Geons are reverberatory brain circuits that encode perceptual patterns in a scene. b) Î Geons are shapes that occur often as parts of objects. In order to perceive and recognize an object, e.g., a hammer, the perceptual process first identifies the geons of which the object is composed, e.g., the geons that form the handle and head of the hammer. c) The geon is a measure of the activation level that a concept node must achieve in order for the person to recognize an instance of the concept. E.g., in order to recognize an object as a hammer, the concept node for "hammer" must achieve a level of activation that is measured in geons. (The criterion level of activation varies depending on the situation.) d) The geon is a typical version of an object that has been abstracted from numerous experiences with that object. E.g., if we have seen many dogs in our lives, then we have a geon representing the
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