Introduction to Psychology 10th Edition by Rod Plotnik,Haig Kouyoumdjian

تمرين 31

There are two basic causes of deafness. If the cause is wax in the auditory canal, injury to the tympanic membrane, or malfunction of the ossicles, it is called (a) _____deafness. If the cause is damage to hair cells in the cochlea or to the auditory nerve, it is called (b) _____deafness. One treatment for neural deafness is to use a (c) _____, which is more effective if individuals have learned to speak before becoming deaf.