Yates, A. J., & Laszlo, J. I. (1965). Learning and performance of extraverts and introverts on the pursuit rotor. Journal of Personality and Social Psychology, 1(1), 79-84.
http://dx.doi.org/10.1037/h0021656
Differences in the performance of extraverts and introverts have been related by Eysenck both to differences in the rate of growth of associative connections (excitation) and to the rate of growth of reactive inhibition. Previous attempts to test either or both versions of the theory have been indecisive. In this experiment, groups of extreme introverts and extraverts, matched for neuroticism (drive), practiced the pursuit rotor under spaced conditions to asymptotic level. They were then switched to massed practice. No differences between the groups were found in rate of acquisition of the skill, in asymptotic level reached, or in decline in performance under massed practice. In the latter condition, both groups showed a decline of about 30% time on target over a period of 7 min. The results do not support either the 1955 or the 1957 versions of Eysenck's theory of extraversion-introversion. (PsycINFO Database Record (c) 2016 APA, all rights reserved)