Comparison of the prevalence of mental health problems in deaf and hearing children and adolescents in Australia.

OBJECTIVE: The aims of the present study were to (i) identify the prevalence rate and nature of mental health problems in a group of Australian deaf children and adolescents and compare these to those reported for the Australian hearing population; and (ii) identify specific demographic characteristics that may typify deaf children and adolescents with mental health problems. METHOD: Sixty-six parents of deaf children and adolescents aged 6-18 years, their teachers and 38 adolescents participated in the study. Data related to mental health problems were collected using the Child Behaviour Checklist and Youth Self-Report. Data related to demographic characteristics were obtained via parent and teacher surveys. RESULTS: The overall prevalence rate of mental health problems reported by parents and adolescents in the present study is comparable to that of the Australian hearing population. Parents in the present study, however, reported significantly more concerns on the social problem and thought problem scales than did Australian parents of hearing children and adolescents. There were also significant differences between the prevalence and nature of mental health problems as reported by the deaf adolescents in the present study when compared to deaf adolescents in another Australian study. These differences appear to be explained by differences in the preferred communication mode of the participants in the two studies. CONCLUSIONS: The known heterogeneity within the Australian deaf child and adolescent population with respect to preferred mode of communication has important implications not only for the appropriate selection and use of psychiatric instruments in assessing child and adolescent mental health but also for the accurate reporting of the prevalence and nature of mental health problems within this population.

Language ability and verbal and nonverbal executive functioning in deaf students communicating in spoken English.

The internal use of language during problem solving is considered to play a key role in executive functioning. This role provides a means for self-reflection and self-questioning during the formation of rules and plans and a capacity to control and monitor behavior during problem-solving activity. Given that increasingly sophisticated language is required for effective executive functioning as an individual matures, it is likely that students with poor language abilities will have difficulties performing complex problem-solving tasks. The aim of this study was to investigate the relationship between language ability and verbal and nonverbal executive functioning in a group of deaf students who communicate using spoken English, as measured by their performance on two standardized tests of executive function: the Delis-Kaplan Executive Function System (D-KEFS) 20 Questions Test and the D-KEFS Tower Test. Expressive language ability accounted for more than 40% of variability in performance on the D-KEFS 20 Questions Test. There was no significant relationship between language ability and performance on the D-KEFS Tower Test. There was no relationship between language ability and familiarity with the specific problem-solving strategies of both D-KEFS Tests. Implications of the findings are discussed.

Assessing children with profound hearing loss and severe language delay: getting a broader picture.

Six children with profound hearing loss and severe language delay participated in this pilot study. Four of the children used a Nucleus multi-channel cochlear implant only, while two wore binaural hearing aids. All the children had been diagnosed at an early age, fitted with a sensory device soon after, had considerable device experience and had attended an auditory oral early intervention setting. All the children were identified as having slower-than-expected development of spoken language. The study identified a number of potentially contributory factors including: inconsistency of device use and low levels of functioning on conversational attentiveness, speech perception, speech intelligibility, pragmatics, social competence, behaviour and temperament.