PubMed · 1990 · 17 citations · 8 references
Health ProfessionsAudiologyPsychologyChild DevelopmentHearing SciencePediatric AudiologyAuditory AttentionAuditory DevelopmentAuditory ThresholdsHearing Threshold EstimationPediatric Hearing AssessmentThreshold EstimationHearing Threshold AssessmentHearing Threshold ScreeningInfant Audiometric AssessmentInfant Auditory Threshold EstimationObjective Threshold EstimationPediatric Hearing Threshold EstimationTest Frequencies
Motivation and attention are consistent across the three test frequencies. The ISP uses a visually reinforced head‑turn procedure with randomly selected frequencies, adaptive level selection based on response history, and Probe/Catch trials to monitor and adjust for changes in motivation or attention. The ISP is a computer‑assisted adaptive staircase procedure that obtains hearing thresholds at three frequencies in infants.
A computer-assisted adaptive (staircase) threshold acquisition procedure (the ISP) has been developed to determine hearing sensitivity of infants. A visually-reinforced head turn procedure is utilized. Thresholds at three frequencies are obtained with independent and concurrent staircases. Thus, motivation and attention to the task are the same for the three test frequencies. On each trial, the test frequency is randomly selected and then presented at a level determined by the response history at that frequency. The use of Probe and Catch trials permit learning and motivation to be continuously monitored. In the event of marked changes in motivation or attention, trial-by-trial history allows threshold estimates to be adjusted.
8