h34 - Updated 5.17.06 BSL PRO Lesson H34: Electrogastrogram...

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Updated 5.17.06 BSL PRO Lesson H34: Electrogastrogram From a Human Subject This PRO Lesson describes how to record an electrogastrogram (electrical activity from the stomach muscles) from a resting human subject. All data collection and analysis is done via the BIOPAC MP3X data acquisition unit and the Biopac Student PRO software. 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. Overview In a healthy individual, the stomach muscles contract at regular intervals, giving a rhythmic electrical signal that is recorded by the electrodes. In a healthy subject at rest, the rhythm of the contraction is approximately three cycles per minute. The power and frequency of the signal changes after a subject eats a meal. Students will place three disposable surface electrodes on the surface of the abdomen above the stomach to record the electrogastrogram (electrical activity from the stomach muscles) from a fasting human subject and, if desired, after eating. Read more about the electrogastrogram at MedicineNet.com www.biopac.com Page 1 of 5
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BSL PRO Lesson H34 BIOPAC Systems, Inc. Equipment BIOPAC electrode lead set (SS2L) BIOPAC electrodes (EL503)—three per subject Electrode gel and abrasive pad (BIOPAC GEL1 and ELPAD)
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This note was uploaded on 11/14/2011 for the course ECE 3820 taught by Professor Wang during the Fall '11 term at GWU.

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h34 - Updated 5.17.06 BSL PRO Lesson H34: Electrogastrogram...

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