Figure 1
From: Auditory Neural Activity in Congenitally Deaf Mice Induced by Infrared Neural Stimulation
Acoustically (clicks) evoked ABRs (aABRs) could be recorded in normal hearing mice (A) but not in the three strains of congenitally deaf mice (B). Multiple peaks can be identified in the aABR waveforms of normal hearing animals (marked as I-IV in panel A), which gradually disappeared with the decrease in sound level. No aABR was induced in the three strains of congenitally deaf animals. The sound stimuli used in (A) and (B) were clicks, and similar results were obtained with tonal stimulations. The input/output (I/O) curve in response to clicks in a normal hearing animal is plotted in (C), with a threshold at 37 dB SPL (red dot). The threshold at each frequency of all the normal hearing animals used in this study was plotted in (D).
