Does Knowledge of Medical Diagnosis Bias Auditory-Perceptual Judgments of Dysphonia?

摘要: Summary Objective/Hypothesis To determine whether knowledge of medical diagnosis biases listeners with varied experience levels in their judgments dysphonia. Study Design Prospective, mixed experimental and comparative design. Methods Twenty-six speakers dysphonia four normal controls provided speech recordings. Twenty novice eight experienced clinicians evaluated samples for roughness breathiness using 100-mm visual analog scales. In one condition, the were presented without diagnostic information; second conjunction diagnosis. Results Regardless level, judged as significantly more severe when speakers' diagnoses known. Specifically, (NLs) increased severity who mildly breathy or moderately rough information was addition, both groups mass lesions to be rougher known; this bias not observed other diagnoses. NLs also trended toward increasing individuals known vocal fold paralysis but Conclusions Sources such should considered use auditory-perceptual measures evaluate