UMass Amherst KIN 460 - Lab 8 Reaction time handout (2 pages)

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Lab 8 Reaction time handout



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Lab 8 Reaction time handout

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Pages:
2
School:
University of Massachusetts Amherst
Course:
Kin 460 - Motor Control

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Reaction time KIN 460 Motor Control Lab Lab 8 Reaction Time Section 3 Voluntary reactions to visual and auditory stimuli We are constantly reacting to stimuli Reactions are generally characterized as voluntary actions in response to a stimulus and are typically desirable responses for an intended outcome For example we may want to respond to an incoming baseball by either raising a hand to catch it or ducking to avoid getting hit Generally the nervous system requires information about a stimulus which is then used to make a decision about the appropriate action to take and the movements required to be successful We can use information from all senses and each has its own contribution to the decision process many times we combine information from many sensory systems such as vision and vestibular input to say prevent a fall by taking a step Stimulus presentation can affect the response time More complex stimuli make take longer to encode and depending on the sensory system can take longer to reach the brain area responsible for interpreting the information causing differences in reaction time between sensory processing systems Today you will perform an experiment and test hypotheses about how different types of information is processed and executed Lab objectives 1 Learn about differences between visual and auditory reactions to a stimulus 2 Learn about how stimulus presentation can affect the response time 3 Learn how experience can improve reaction time Reaction Time Setup 1 Set up each workstation accordingly Make sure you have a Computer with Biopac MP3X unit b Hand switch c Headphones 2 The hand switch should go into Channel 1 the headphones into OUT1 back of unit 3 Select Lesson 11 Reaction Time 1 and type your name Calibration 1 Subject should sit with eyes closed and headphones on with thumb ready to click the hand switch button 2 Click Calibrate and then click OK 3 Press the hand switch when you hear a click Wait for the calibration to end Review the data



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