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Thompson Rivers University
Thompson Rivers University

POLY 3021: Polysomnography Instrumentation

This course introduces instrumentation and electrical principles and practices that the polysomnographer must understand. While electrical safety and ancillary equipment encountered in sleep laboratories are covered, the student will also cover the internal workings and calibration of the polygraph. Amplifiers and filters will be emphasized along with basic tracings and some of the artifacts that may appear and influence one’s interpretation of the sleep study. Also, the international “10-20” system of electrode placement will be introduced.

Learning outcomes

After completing this course, students will be able to:

  • Outline the fundamental principles of electricity and describe the hazards, features, and protocols of electrical safety.
  • Describe bioelectrical potentials, polygraphs, calibration, electrode placement, signal derivation, and EEG tracing.
  • Describe the structure and function of ancillary equipment and how it is used to monitor and collect data.

Course topics

Module A: The Role of the Sleep Technologist

Module B: Electricity and Electrical Safety

Module C: Instrumentation

Module D: Ancillary Equipment

Required text and materials

The following text would have been purchased in POLY 3011. If students did not take POLY 3011 and/or don't already own the required textbook, please be aware that students will need to purchase it. To do so, please contact Enrolment Services at or 1.800.663.9711 (toll-free in Canada), 250.852.7000 (Kamloops, BC), and 1.250.852.7000 (International).

  1. Mattice, C., Brooks, R., Lee-Chiong, T. (Eds.) (2020). Fundamentals of sleep technology (3rd ed.). Philadelphia, PA: Wolters Kluwer Health.
    Type: Textbook: ISBN: 978-1-9751-1162-5


Please be aware that should your course have a final exam, you are responsible for the fee to the online proctoring service, ProctorU, or to the in-person approved Testing Centre. Please contact with any questions about this.

To successfully complete this course, students must obtain at least 50% or higher on the final mandatory exam and 50% on the overall course.

Students applying this course towards any TRU Health Care program may be required to obtain a minimum 60% on the course overall to meet program requirements.

Midterm #1 – Module A and B 25%
Midterm #2 – Modules A, B and C 35%
Final Exam (mandatory) - Modules A, B, C and D 40%

Open Learning Faculty Member Information

An Open Learning Faculty Member is available to assist students. Students will receive the necessary contact information at the start of the course.

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