What is the term for the intensity of sound heard by the non-test cochlea through intracranial stimulation?

The term that refers to the intensity of sound heard by the non-test cochlea through intracranial stimulation is known as crossover. This phenomenon occurs during hearing assessments, particularly in situations involving air conduction testing. When a stimulus is presented to one ear (the test ear), some of the sound may cross over to the other ear (the non-test ear). This can lead to responses from the non-test ear, potentially affecting the accuracy of the test outcomes.

Crossover is significant in clinical audiology because it highlights the importance of considering how sounds can be perceived by both cochleae, especially when using air conduction pathways. Without addressing crossover, audiologists may underestimate hearing thresholds or miss important contributions from the non-test ear.

Interaural attenuation refers to the reduction of sound intensity as it travels from one ear to the other, which is an important factor but does not specifically define how sound is perceived at the non-test cochlea during intracranial stimulation. Effective masking relates to using noise to elevate the threshold of hearing in one ear to prevent crossover responses during a hearing test. Undermasking occurs when the masking noise is insufficient to prevent crossover, but it also does not define the intensity of sound heard by the non-test ear directly. Therefore, crossover