@article{ref1,
title="Beyond heart rate in the cardiac psychophysiological assessment of mental effort: the T-wave amplitude component of the electrocardiogram",
journal="Human factors",
year="1987",
author="Furedy, J. J.",
volume="29",
number="2",
pages="183-194",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}