Evaluation of difference limen for frequency, intensity and duration in individuals with visual impairment

Abstract

Introduction Individuals with visual impairment are known to have better auditory abilities than individuals with normal vision. There is a literature shortage that has attempted to assess differential sensitivity for frequency, intensity, and duration in individuals with visual impairment. Objective Thus, the study attempted to determine differences in difference limen for frequency, intensity, and duration between individuals with visual impairment and individuals with normal vision. Methods 30 individuals with normal vision and 30 individuals with visual impairment (15 males and 15 females in each) participated in the study, and their DLI, DLF, DLT were assessed using the mlp toolbox. Results The study results showed that the differential sensitivity was superior for individuals with visual impairment compared to sighted people. Conclusions The results agree with previous studies, suggesting a superior auditory performance in individuals with visual impairment. Further studies on a larger group of population are essential for better generalisation of the results.