What is the term used for the arrangement of electrodes for recording physiologic activity?

The term "montage" refers specifically to the systematic arrangement of electrodes used to record physiological activity, especially in the context of polysomnography and other electrodiagnostic studies. In this field, a montage allows for the standardized placement of electrodes to capture various signals accurately, such as brain waves (EEG), eye movements (EOG), and muscle activity (EMG).

Utilizing a montage is essential as it ensures consistency across studies and enables clinicians to analyze sleep stages, diagnose sleep disorders, and evaluate brain function effectively. Each montage can be tailored for different types of recordings or research topics, thus enhancing the clarity and quality of obtained data.

The other terms provided, while related to setups and arrangements, do not specifically denote the systematic electrode placement that "montage" encompasses. Configuration, layout, and setup might describe the general organization of various components in a laboratory or clinical setting but lack the specificity and standardization inherent in a montage within electrophysiological assessments.