This study was to done to evaluate auditory psychological factors concerning assessment of dysphagia using cervical auscultation. A semantic differential technique was used to obtain the auditory psychological factors in this study. Expiratory sounds after swallows were recorded from 17 head and neck cancer patients, and they were classified in five categories according to videof luorograf is findings.
Thirteen clinicians and nine acoustic scientists judged each of 23 sound samples, and scored them using a seven-step scale.
The results of factor analyses of auditory psychological experiments were similar in both the clinician and engineer groups. Three factors were extracted, and each factor had high factor loading in similar semantic scales.