Effect of handedness on the middle latency auditory evoked potential
Stewart, M.G.; Jerger, J.; Lew, H.L.
American Journal of Otology 14(6): 595-600
1993
ISSN/ISBN: 0192-9763 PMID: 8296866 Document Number: 409767
The effect of handedness on the middle latency response of the auditory evoked potential was investigated by testing 16 right-handed and 16 left-handed young adults with normal hearing. Each handedness group contained eight males and eight females. Peaks P-o, N-a, P-a, N-b, and P-b showed a progressive, statistically significant latency increase in left-handed subjects when compared with right-handed subjects. The latency difference was 1.1 ms at peak P-a and 3.6 ms at peak P-b. There was no significant latency difference between males and females. Topographic brain mapping showed that the distribution of positivity of wave P-b was similar to the distribution for wave P-a in both right- and left-handed subjects.