MRC Institute of Hearing Research, UK
Recent years have seen an expansion of interest in factors outwith
simple aspects of audibility as potential determinants of experienced
disability following a hearing impairment and the benefits that accrue
following hearing aid provision. Variables of interest include the
distortions which are an almost inevitable accompaniment of sensorineural
hearing loss (aspects of frequency, temporal and binaural processing) and
the ways in which client-centred attributes such as personality and
motivation are influential. This paper puts forward the thesis that an
additional important consideration revolves around the auditory lifestyles
of listeners in terms of the types of listening circumstances that they
experience, the frequency of their occurrence, and their importance to
that individual in everyday existence. We propose the term "auditory
ecology" for this concept. This paper presents results from listeners
with sensorineural hearing loss who are established users of various forms
of linear and non-linear amplification and documents the extent to which
aspects of auditory lifestyle act as significant predictors of experienced
disability and handicap after control for audibility and other relevant
factors. Furthermore, the data shows that perceived benefits of and
preference for aspects of non-linear processing (amplitude compression of
various types) over and above well-fitted linear amplification is also
significantly influenced by auditory ecology as indexed by structured
questionnaires and portable environmental monitors.