The main objective of this study was to describe auditory function within the closed head injured (CHI) population of South Africa. 30 participants were recruited from two private rehabilitation facilities in Gauteng, they completed a detailed case history questionnaire, underwent basic audiological tests including otoscopy and immittance testing, pure tone and speech testing, as well as advanced audiological tests which included OAEs and ABRs. Basic audiometry revealed normal hearing in all 30 participants. The results of the OAEs were normal in 25/30 participants. The neurological ABR...