A study of association between individual differences and selective auditory attention task performance is presented. The paper emphasises the problem of attention dependency upon temperamental characteristics, treated in the context of theories by H. Eysenck, V. M. Rusalov, and J. Strelau. The study results are interpreted in the resource approach framework, indicating an influence of individual differences upon attention resource allocation strategy, mediated by activation. Automation of task performance was observed, associated by shift in the leading level of attention.