Parental perception of listening difficulties: an interaction between weaknesses in language processing and ability to sustain attention

Abstract

(Central) auditory processing disorder ((C)APD) is a controversial diagnostic category which may be an artefact of referral route. Yet referral route must, to some extent, be influenced by a child's profile of presenting symptoms. This study tested the hypothesis that parental perception of listening difficulty is associated with weaknesses in ability to sustain attention while listening to speech. Forty-four children (24 with listening difficulties) detected targets embedded in a 16-minute story. The targets were either mispronunciations or nonsense words. Sentence context was modulated to separate out effects due to deficits in language processing from effects due to deficits in attention. Children with listening difficulties missed more targets than children with typical listening abilities. Both groups of children were initially sensitive to sentence context, but this declined over time in the children with listening difficulties. A report-based measure of language abilities captured the majority of variance in a measure capturing time-related changes in sensitivity to context. Overall, the findings suggest parents perceive children to have listening, not language difficulties, because weaknesses in language processing only emerge when stressed by the additional demands associated with attending to, and processing, speech over extended periods of time.

Figure 1

Effect of context on Percentage Targets Missed (panel A) and Reaction Time (seconds) (panel B) for the children with normal listening abilities (TLi) and the children with listening difficulties (Li-Ref; Li-Nonref). Error bars refer to standard errors.

Figure 2

Effect of time-on-task according to Target Type [Predictable (panel A), Nonsense (panel B)], Half [1^st Half, 2^nd Half] × Group [TLi, LiD]. Error bars refer to standard errors.

Figure 3

Correlation between the Context Sensitivity Change scores, and Language (GCC). GCC <55 indicates significant language difficulty (vertical dotted line). Context Sensitivity Change scores <0 indicate increasingly poor target detection over time.