What are two other names for 60Hz artifact?

Prepare for the NBRC Sleep Disorders Specialty Exam. Study with flashcards and multiple choice questions, each enhanced with hints and explanations. Get ready to excel in your exam!

The correct answer identifies two terms commonly used to describe the 60Hz artifact, which is associated with electrical interference that can impact sleep study recordings. The choices "Line Filter" and "Notch Filter" refer specifically to methods of eliminating this unwanted electrical noise from the data being analyzed.

A line filter is designed to reduce interference from electrical sources that operate at a specific frequency, typically 60Hz in North America, thereby helping clean the recorded signals from extraneous noise. Similarly, a notch filter precisely targets and attenuates a narrow band of frequencies, filtering out the 60Hz artifacts without significantly affecting the other components of the signal being measured.

Other options do not correctly correlate with the terminology used in the context of sleep studies and artifact management. For example, the terms in the first choice, "Phase Filter" and "Amplitude Filter," are not standard designations for addressing 60Hz interference, and the other pairs do not align with established practices in filtering electrical noise in clinical settings. Understanding these filters is critical for interpreting polysomnography data accurately and mitigating the effects of artifacts on sleep studies.

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