It is a highly sophisticated and fully computerized test done in infants and neonates, preferred to perform under sedation. Sound send through ear and returning sounds are recorded ( rarefaction clicks ). Usually 2000 cycles are averaged with each intensity. Sound stimulation is given from higher Intensity to lower intensity i.e., 110db,100db,90db,and so on.
It is indicated in :

• New born with jaundice,
• New born with high grade fever,
• Children with Congenital deformities,
• Children with delayed speech,
• After Forceps delivery,
• Children whose mother suffered from Viral disease during Pregnancy etc