What is a drawback of using electroglottography (EGG)?

The correct response highlights a limitation of electroglottography (EGG) in that it may not provide a strong signal in certain individuals. EGG measures the electrical impedance of the vocal folds, which is influenced by various factors such as the size and shape of the person's neck, the position of the electrodes, and the specific characteristics of the individual's vocal folds. In some cases, particularly where there are anatomical variations or if the electrode placement is not optimal, the signal can be weak or inconsistent. This variability can affect the reliability of the data obtained, making it a drawback in practical applications.

Conversely, while EGG has advantages in many scenarios, it is important to acknowledge that it is not universally applicable to all subjects due to anatomical differences. Additionally, interpreting acoustic signals is a separate consideration that does not directly pertain to the EGG measurement itself. EGG is also a non-invasive procedure, further characterizing its advantages in comparison to more invasive techniques.