H34 Electrogastrogram

This BSL PRO Lesson describes how to record an electrogastrogram (electrical activity from the stomach muscles) from a resting human subject.

• software: Biopac Student Lab PRO 3.7.7, 3.7.5 or 3.7.3 (template was created in BSL PRO 3.7.3)
• data acquisition unit: MP36, MP35, or MP45
  • The MP30 does not have high enough A/D resolution to be used for EGG recordings.

Experimental Objectives

1. To record EGG from a human subject using surface electrodes.
2. Analyze the frequency of the signal using a Fast Fourier Transform.
3. Optional: The subject will eat a meal and record the EGG signal before and after eating.

Tasks Performed by the Student

The Subject will:

• Relax and lie quietly,
• Sit up and eat some food, and
• then lie down and relax.

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.

• Graph template file for BSL PRO H34
• BSL PRO Lesson H34 (PDF)

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.