What does an electrogram measure?

An electrogram measures the electrical potentials of tissue, specifically focusing on the electrical activity generated by excitable cells, such as nerve or muscle tissues. In the context of speech science, electrograms can be used to assess vocal fold movement and function by recording the electrical signals that correspond to the activity of the muscles controlling the vocal folds during phonation.

This measurement provides valuable insights into the physiological aspects of speech production, helping to evaluate the integrity and coordination of the laryngeal muscles. Understanding these electrical signals can assist clinicians and researchers in diagnosing and treating voice disorders, as they indicate how well the muscles associated with speech are functioning.