Hearing Impairment in Children: Pupillometry and Hearing Thresholds Assessment

"Auditory Stimuli: Pure tone bursts with main frequencies of 500, 1000, 2000, and 4000 Hz. Each tone will be presented at 10dB above the estimated individual threshold per frequency and compared to the responses to trials without auditory stimuli. Auditory stimulus duration: 25ms, there is 200ms baseline period before each trial, and 2000 ms interstimulus interval.~Visual stimuli: an animated movie adapted for the age and controlled for luminosity levels.~Pupil data will be collected through a Tobii PRO screen-based eye-tracker that measures eye-movements and pupil dilation using the infrared light cameras."