Differential effect of adaptation on the ipsi- and contralateral auditory brainstem pathways.
Auditory brainstem potential components II and V are delayed in the contralateral recording in comparison with that ipsilateral to the stimulus. Wave III is recorded earlier contralaterally. The effect of increasing stimulus repetition rate on the ipsilateral/contralateral latency differences in these components was examined. There is a progressive increase in latency from Wave I to Wave V ipsilaterally with an increase in stimulus rate; however, contralaterally there is no further increase in latency after Wave III. At 40 Hz stimulus rate, therefore, the ipsi/contra difference in the latency of Wave V disappears, suggesting that there is a differential effect of peripheral and central adaptation on the ipsilateral and contralateral auditory pathways.
Prasher
D
D
Institute of Laryngology and Otology, University College, London.
D000328:Adult; D001306:Auditory Pathways / Q000502:physiology*; D016057:Evoked Potentials, Auditory, Brain Stem; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008297:Male; D008875:Middle Aged; D011930:Reaction Time; D013997:Time Factors