Experimental Study of ABR in Rats. Report II.The Power Spectral Analysis of ABR

Abstract

The frequency components of the auditory brain stem response (ABR) waves in rats were analyzed with a minicomputer. For this purpose, a digital filtering method was used to analyze the characteristics of the filtered recorded ABR wave.
The results are as follows;
1. The ABR waves in rats are composed of frequencies ranging between 0 and 3. 7 kHz, and their power spectrum has three peaks. The major components lie between 0.1 and 1.2 kHz.
2. As the stimulus sound intensity develops, the high frequency components of the ABR increase relative to the fundamental.