mid1b-akey.w09 - John Miyamoto Email...

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John Miyamoto Email: [email protected] http://faculty.washington.edu/jmiyamot/p355/p355-set.htm Psych 355: Introduction to Cognitive Psychology Winter 2009 Midterm 1, VERSION B - ANSWER KEY NAME: UW ID: SECTION AA AB AC AD (circle one) Instructions: This exam has 10 total pages. Check that your copy of the exam has all pages before starting. · You are working on Form #B# of this exam. Record the form of the exam on the scantron form. All questions are worth 1 point. Turn off your cell phone. You are not allowed to use any books, notes, computers, cell phones or other electronic devices while taking this exam. 1. Suppose that neuron A provides input to neuron B at a synapse. Neuron A is inhibatory with respect to neuron B if: a) neuron B never fires when neuron A fires. b) neuron A only fires when neuron B is not firing. c) increased firing of neuron A produces increased firing of neuron B. d) Î increased firing of neuron A produces decreased firing of neuron B. 2. Action potentials occur in the ... of a neuron. a) cell body. b) synapse. c) Î axon. d) neurotransmitters. 3. All of the following properties of neural architecture are important to neural information processing EXCEPT: 4. Neurotransmitters are
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2 5. Donders compared simple response time to choice response time. Simple Response Task: The subject has only one possible response, press a button or refrain from pressing the button. The subject has to press the button as soon as he detects the presentation of a stimulus. Catch trials (no stimulus) are included to keep the subject honest. Choice Response Task: The subject has two possible responses, press the left button or the right button. The subject must press the left button if the stimulus is on the left and the right button if the stimulous is on the right. Donders applied his Method of Subtraction to the average simple response time and average choice response time. What was the purpose of his Method of Subtraction, i.e., what did he hope to discover? a) Donders was trying to discover whether choice responses take longer in general than simple responses. b) Î Donders was trying to discover how long it takes to make a decision about a stimulus. c) Donders was trying to discover which brain areas are active when people detect the presence of stimuli. d) Donders was trying to discover whether the choice response task places greater demands on attention than the simple response task.
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