Recruitment phenomenon is seen in? [Kolkatta 2012]
|C||Acoustic nerve schwannoma|
|D||Otitis media with effusion|
a. It is a phenomenon of abnormal growth of loudness Q
b. The ear which does not hear low intensity sound begins to hear greater intensity sounds as loud or even louder than normal hearing ear.
c. Thus a loud sound which is tolerable in normal ear may grow to abnormal levels of loudness in the recruiting ear and thus become intolerable Q
d. Recruitment is typically seen in lesions of cochlea Q l.e. meniere's disease", presbycusis. Q
e. Patients with recruitment are poor candidates for hearing aids. Q