[Effect of ipsilateral, contralateral and binaural roaring noise on brain stem potentials in the guinea pig].
On ipsilateral masking the individual potentials showed reduced amplitudes with increasing noise level, the latency of the potential PI increased and the interval PI/PIV shortened. Compared to ipsilateral masking the potential PIV exhibited a significant minor decrease in amplitude at binaural noise presentation. At contralateral masking the peaks PI and PIII showed a reduced potential size with noise levels above 50 dB, which also produced significant changes in latency. Against that the potential PIV exhibited a significant decrease in amplitude already at noise levels above 30 dB. The results are discussed in the light of central masking and their clinical relevance.
D000161:Acoustic Stimulation / Q000379:methods; D000818:Animals; D001288:Attention / Q000502:physiology; D001307:Auditory Perception / Q000502:physiology*; D001309:Auditory Threshold / Q000502:physiology; D001933:Brain Stem / Q000502:physiology*; D004292:Dominance, Cerebral / Q000502:physiology*; D005072:Evoked Potentials, Auditory; D006168:Guinea Pigs; D010470:Perceptual Masking / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology
Der Einfluss ipsilateralen, kontralateralen und binauralen Rauschens auf die Hirnstammpotentiale beim Meerschweinchen.