Modern aspects of the recruitment phenomenon.

Abstract

TABLE OF CONTENTS Introduction Recruitment and hearing aids Recruitment and neural lesions Partial Recruitment In severe lesions In conductive lesions The normal impedance function The pathological impedance function The dynamogram Loudness in bone conduction The 2,000 bone conduction dip in otosclerosis In mixed types of deafness Recruitment in cases of herpes oticus Recruitment in multiple sclerosis Testing technique Older techniques Hood's perstimulatory test Lüscher's test Comment General considerations Acoustic trauma Ménière's disease Fatigue Eighth-nerve lesion Conclusions Summary <h3>I. INTRODUCTION</h3> FEW ITEMS in modern audiological research have attracted so much interest as the recruitment phenomenon. The story of its still young history reveals many remarkable features. It will be the purport of this paper to discuss the fallacies of recruitment testing, a routine which has