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S11 Reaction Time

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The Reaction Time lesson demonstrates the effect of learning and physiological processes on reaction times. Students hear two presentation schedules of clicks through a set of headphones. With electrodes in place to record the activity of the extensor digitorum (the primary muscle used to lift a finger), the Subject lifts finger as quickly as possible after hearing a click. Students then perform a statistical analysis of the results, including: group mean, variance, and standard deviation.

Experimental Objectives

  1. Measure and compare reaction times of an individual subject using two stimulus presentation schedules: fixed intervals and pseudo-random intervals.
  2. Introduce elements of statistics into data analysis.
  3. Use statistics to determine the effects of learning on reaction times.

Tasks Performed by the Student

Student Prep & Distance Learning

Click the link(s) below for sample data and/or lesson procedure video(s), BSL PRO Lesson procedures (PDF) for human lessons*, and graph template files (*.gtl) for BSL PRO Lessons. If more than one .gtl is available, download the .gtl with the _suffix to match BSL version and hardware.

Lesson Hardware

This lesson requires a Biopac Science Lab (MP40) System and the following hardware. If your BScL System does not include all hardware items, expand your system by selecting required items below.

Item Name Cart
40SR-TA Stimulus Response Pack Add to Cart
SCILAB-I-SR SCILAB-I with Stimulus Response Pack Add to Cart
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