Testosterone and somatosensory evoked potentials from right and left posterior tibial nerves in right-handed young adults.
The relationship between serum testosterone level and somatosensory evoked potentials (SEP) from right and left posterior tibial nerves (PTN) was studied in right-handed young adults. Hand preference was assessed by the Edinburgh Handedness Inventory. The amplitudes of P39 and N49 components of the SEPs from the left and right hemispheres of men and only from the left hemisphere of women were found to be negatively linearly and significantly correlated with serum testosterone. There was no significant correlation between P58 and N76 components and serum testosterone in these subjects. The correlations were found to be more prominent for the left hemisphere than the right hemisphere. The data were also analyzed considering eye and foot preferences. It was concluded that testosterone could be associated with the development of the somatosensory system during adolescence.
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Atatürk University, Medical Faculty, Institute of Physiology, Erzurum, Turkey.
D000293:Adolescent; D000328:Adult; D004292:Dominance, Cerebral; D004558:Electric Stimulation; D005073:Evoked Potentials, Somatosensory; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008297:Male; D012727:Sex Characteristics; D013739:Testosterone / Q000097:blood*; D013979:Tibial Nerve / Q000502:physiology*
D013739:Testosterone