The Auditory Steady State Response (ASSR) test measures brainwave responses to sound stimuli, assessing auditory pathway function. Electrodes placed on the scalp record these responses while a series of tones or clicks are presented through headphones. ASSR is particularly useful for evaluating hearing in infants, young children, and individuals who cannot respond verbally. It provides detailed information on hearing sensitivity and helps diagnose hearing loss accurately, guiding effective treatment and intervention strategies..