The study of distortion products otoacoustic emissions in pseudo-anacousia / 法医学杂志

ABSTRACT

OBJECTIVE@#To explore the technique that distinguish pseudo-anacousia.@*METHODS@#60 cases were divided into three groups (normal group, deafness sensorineura group and pretending hearing loss group). They all had been tested by distortion products otoacoustic emissions technique.@*RESULTS@#(1) The DPOAE incidence of normal group is 94.00%. the DPOAE incidence of deafness sensorineura group is 22.00%. There were significant differences at statistics in DPOAE incidence (P < 0.01). those proved that patients (deafness sensorineura group) were in hearing problem. (2) The DPOAE incidence of pretending hearing loss group is 93.00%, there were no significant differences at statistics in DPOAE incidence between normal group and pretending hearing loss group (P > 0.01), furthermore when behavior threshold is over 50 dBHL, DPOAE incidence is no score.@*CONCLUSION@#This study shows the technique can distinguish pretending hearing loss. The application of DPOAE can be used as a new tool in cases assessment of clinic forensic medicine.