recruitment

11.30  abnormal growth of loudness; abnormal loudness growth function; recruitment. In certain cases of hearing impairment (e.g., cochlear) an increase in loudness with increasing stimulus magnitude at a rate greater than for a normal ear.

Annotation              Although in wide use, the word recruitment describes what is thought to be the underlying physiology of what is defined, rather than the psychoacoustic observation. Use of recruitment is deprecated in favor of abnormal growth of loudness or abnormal loudness growth function.