Weight of sound qualities in inducing audiogenic seizure in rats

Twelve experiments were carried out in order to establish the functional associations of the sound pressure level, the frequency, time variations and spectral properties of sound with the latency time of audiogenic seizure (AGS) in rats. The signal to silence time ratio, in addition to the sound pressure level and the frequency was found to be an important factor. As a retraction to the previous paper (Björk, E.A. and Tacke, U., 1985, Hearing Res. 17, 95-98), the harmonic spectra were shown not to be more effective than the tone and the noise in inducing AGS.