Auditory evoked potentials differ at 50 milliseconds in right- and left-handed listeners.
Left-handed individuals show a 4 ms later Wave Pb in the 45-60 ms latency range of the auditory middle latency response (MLR) than right-handed individuals. Examination of auditory evoked potentials in fifteen right-handed and fifteen left-handed normal hearing adults showed that this difference was not evident in time periods earlier or later than 45-60 ms. The isolation of this latency difference to a specific time period suggests that the source or sources of Wave Pb may be an independent physiological index which correlates with hand preference.
Hood
L J
LJ
Kresge Hearing Research Laboratory, Department of Otorhinolaryngology, Louisiana State University Medical Center, New Orleans 70112.
Martin
D A
DA
Berlin
C I
CI
D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D005072:Evoked Potentials, Auditory / Q000502:physiology*; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D008875:Middle Aged; D015588:Observer Variation; D011930:Reaction Time / Q000502:physiology*