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Instrumentation in Polysomnography (PSOM 1400)

Total Credits: 5
Lecture Credits: 3
Lab Credits: 2

Description: In this course, you will learn the principles of electricity necessary for polysomnography, with emphasis on signal amplification and filtration, characteristics of waveforms, and recognition of artifacts. The laboratory focuses on the preparation of recording equipment and the patient for polysomnography, including calibrations, the use of ancillary equipment and the application of electrodes and other monitors. Course meets the first eight weeks of the term.

Topical Outline:
1. Electrical concepts including basic safety, polarity, conductors, resistors, capacitors, transistors, insulators, Ohm’s law, voltage and circuits
2. Timescale and voltage adjustments, frequency filters, AC and DC amplifiers, differential amplifiers, referential and bipolar recordings, signal multiplexors, impedance meters, common mode rejection
3. Principles and practice of polysomnographic recordings, EEG (10-20 system), EOG, EMG, ECG, measures of breathing, esophageal pH, oximetry and capnometry
4. Audiovisual recording, data storage, sampling rates, Nyquist/Shannon theory, aliasing, and display resolution
5. Clinical sleep studies, patient preparations, artifact corrections, and calibrations (equipment, montage, and patient)

Learning Outcomes:
1. Explain electrical concepts, including basic safety, polarity, conductors, resistors, capacitors, transistors, insulators, Ohm’s law, voltage and circuits
2. Utilize timescale and voltage adjustments, frequency filters, AC and DC amplifiers, differential amplifiers, referential and bipolar recordings, signal multiplexors, impedance meters, and common mode rejection
3. Demonstrate the principles and practice of polysomnographic recordings, including EEG (10-20 system), EOG, EMG, ECG, measures of breathing, esophageal pH, oximetry and capnometry
4. Describe audiovisual recording, data storage, sampling rates, Nyquist/Shannon theory, aliasing, and display resolution
5. Prepare and initiate clinical sleep studies, including patient preparations, artifact corrections, and calibrations (equipment, montage, and patient)

Prerequisites:  PSOM 1100, PSOM 1200, and PSOM 1300