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Original articles  NEUROPHYSIOLOGY

The Journal of Sports Medicine and Physical Fitness 2005 September;45(3):428-33

language: English

Visual evoked potentials, reaction times and eye dominance in cricketers

Thomas N. G., Harden L. M., Rogers G. G

Applied Physiology Laboratory School of Physiology, Medical School University of the Witwatersrand, Johannesburg, South Africa


Aim. Few studies have examined the physiology of cricket, including the difference in ability between batsmen to make controlled contact with a ball bowled at high speed.
Methods. We therefore measured visual evoked potentials and choice reaction times with dominant eyes, non-dominant eyes, and both eyes together, in 15 elite batsmen and 10 elite bowlers (aged 20.9 SD 1.9 years) and 9 control subjects (aged 20.2 SD 1.5 years). The latency and amplitude of waves N70, P100 and N145 were determined for each visual evoked potential (VEP). In addition interpeak latencies and peak to peak amplitudes were measured. The subjects also completed a choice reaction test to a visual stimulus.
Results. We found that cricketers were not more likely to have crossed dominance (dominant eye contralateral to dominant hand) than controls. Cricketers had a faster latency for VEP wave N70 than controls (p=0.03). However reac- tion time was not different between cricketers and the control group. Across all subjects, in comparison to monocular testing, binocular testing led to a faster choice reaction time (p=0.02) and larger amplitudes of VEP wave N70 (p=0.01).
Conclusion. Visual processing during the first 100-150 ms of the balls flight together with binocular vision facilitates retinal activation in talented cricketers.

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