The aim of this study was to investigate the effect of different inter-stimulus intervals to the Cortical Auditory Evoked Potential (CAEP) findings in adult participants. Nineteen normal hearing individuals aged between 20 and 24 years old participated in this study. CAEP were measured by presenting 1000 Hz tone burst stimulus at 70dBnHL at three different inter-stimulus intervals (ISI)s of 2000, 909 and 555 ms in randomized order. Results revealed significant changes in the CAEP’s amplitude as a function of ISI with a reduction of P1-N1 amplitude of up to 50%. N2 peak was absent in some subjects using short ISI (555 ms). This study concluded that the use of very short ISI (e.g. 555 ms) may not be appropriate clinically because it can reduce the CAEP wave amplitude
and can cause an absence of peak N2. In contrast, the use of short ISI may be useful for other clinical applications that may benefit from neural habituation and refractoriness, for example to predict the potential future outcome of speech and mental disorders.
Patient’s self-perceived handicap inventory is an important tool for modern’s health care management including hearing loss. The HHIA is a selfreporting outcome measurement invented to identify hearing-impaired patients’ complaints for appropriate client-centred rehabilitation program. HHIA has been
reported among one of the valid self-perceived hearing handicap measures, and could even addressed issues for patient with mild and unilateral hearing loss. This study aims to translate HHIA into Malay language (HHIA-M) and to adapt the questionnaire culturally for clinical use among Malaysian population.
This discussion paper aims to synthesise available literature on hearing sciences from Islamic perspective and to relate this to the current hearing care practices. The paper focuses on several main scopes: i) the importance of sense of hearing from Islamic and scientific perspectives ii) impacts of hearing impairment iii) limitations in understanding and practicing Islamic teaching due to hearing impairment, iv) Islamic responsibility towards people with hearing impairment, v) current available methods to facilitate Islamic practices among hearing impaired people, and vi) incorporating Islamization in hearing care practice. Design:Narrative review and synthesis Method:Related publications and references were identified through several ways: i) by structured searches in PubMed, Google scholar, Web of Knowledge and Science Direct using the combinations of ‘Islam’, ‘hearing impairment’, ‘hearing loss’, ‘hearing’, ‘social’, learning’, ‘memory’, ‘disability’, ‘Islamic responsibility’, and ‘learning for deaf’ as key words, ii) by inspecting the reference lists of relevant articles, and iii) by identification of relevant references from Quran and Hadith by authors who have background in Quranic studies. Results:The number of publications within the audiology field, which address the aforementioned scopes, is rather limited. Additionally, a review and synthesis of literature from other related fields such as medical, health, and education, with references from Quran and Hadith, were also carried out to facilitate the discussion of the above mentioned scopes. Conclusion:This paper concludes that there is an emerging trend for the studies of hearing and Islam in the literature. Facilitating hearing impaired people in understanding and practicing Islam becomes a shared obligation for parents, society, and the patients themselves. This discussion also identifies that there is a need for more contributions from Muslim scholars in integrating and implementing the Islamic principles in current hearing care practices.