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L11 Reaction Time I – Auditory Stimulus

Reaction time lesson

The lesson demonstrates the effect of learning and physiological processes on reaction times to an auditory stimulus.

Students hear two presentation schedules of clicks through a set of headphones. The Subject presses a pushbutton hand switch as quickly as possible after hearing the click.

Students can then perform a statistical analysis of the results including: group mean, variance and standard deviation.

Experimental Objectives

  1. Observe the effects of learning and physiological processes on reaction times.

  2. Compare reaction times with two presentation schedules: fixed intervals and random intervals.

  3. Calculate statistics of group mean, variance, and standard deviation.

Tasks Performed by the Student

BSL Lessons are designed to allow at least four students to record and save data in a normal lab period (60-90 minutes). Typically, labs work most efficiently with three or more students working together at each BSL station.

Add active learning segments designed by students or instructor to expand this lesson.

Videos

BSL L11 Recording

BSL L11 Calibration

Biopac Student Lab Student Download

Lesson Hardware

This lesson requires a Biopac Student Lab (BSL) System and the following hardware. If your BSL System does not include all hardware items, expand your system by selecting required items below. For more details, review the Lesson: L# BSL Lessons - see the Lab Manual or launch BSL; A# and H# BSL PRO Lessons, click the PDF link above to review full setup, recording, and analysis procedures.

Item Name Cart
SS10L Push Button Hand Switch - MP3X/45 Add to Cart
OUT1A Headphones to MP36/MP36R output port Add to Cart
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response and stimulus device

Chronos for BIOPAC

The Chronos®  USB-based response and stimulus device features millisecond accuracy in the areas of stimulus, response, sound output, and external device communication—this level of timing accuracy cannot be achieved using a keyboard, mouse, or onboard sound card. Chronos also gives users a solution for communicating with external devices (up to 16 digital inputs and outputs) […]

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