@article{ref1,
title="Incentive and practice in the psychomotor performance of the elderly",
journal="Journal of gerontology",
year="1978",
author="Grant, E. A. and Storandt, M. and Botwinick, J.",
volume="33",
number="3",
pages="413-415",
abstract="Adults aged 64 to 76 years were compared to adults aged 19 to 25 years in regard to the effects of practice and special incentive in Digit Symbol substitution performance. Differential age effects of motivation were not observed but those of practice were.<p /><p>Language: en</p>",
language="en",
issn="0022-1422",
doi="",
url="http://dx.doi.org/"
}