Η αντιληπτική λειτουργία παιδιών 8-13 ετών με προγλωσσική απώλεια ακοής

Abstract

In this study, we investigated the perceptual function of deaf/hard of hearing children. The sample of the study consisted of 58 pupils aged 8-13 years old (3rd-6th graders) with severe (60-90 db) or profound (90 db and above) neurosensory hearing loss – pre-lingual with or without cochlear implants. Children with co-morbidity (intellectual disabilities, syndromes, autism, motor disorders, etc.) and children with post-lingual deafness/hearing impairment were excluded. In order to investigate their perceptual function, the Perceptual Functionality Criterion was used. The results of the study show that deaf/hard of hearing participants exhibit a “sporadic” profile regarding the general perceptual functionality. In particular, the participants were found to perform similarly in terms of visual-perceptive skills, while there was one exception, i.e. their visual-motor skills were worse. Higher scores have been shown in the domain of kinesthetic and tactile perception and lower ones regarding vestigial perception, especially in terms of the sense of balance. In addition, the perceptual function was investigated among the cochlear implant participants and those with conventional hearing aids. The results showed no significant differences between the two groups regarding the perceptual function, although the visual perception was found to be significantly better among the users of conventional hearing aids relative to cochlear implant users. Finally, the perceptual function was investigated in terms of the main method of language/communication used. The data indicated that participants, regardless of whether they use sign language, total/bilingual or oral communication, performed roughly similarly on the test variables. Among the different types of main method of language/communication, statistically significant differences were absent, though regarding the visual and kinesthetic perception sign language users outperformed the users of oral communication.