@article{ref1,
title="Response to a sudden unexpected stimulus",
journal="Journal of experimental psychology",
year="1926",
author="Jacobson, E.",
volume="9",
number="1",
pages="19-25",
abstract="The response to a sudden unexpected stimulus is conditioned not only by the nature of the stimulus itself, but also by the preceding general state of muscular tonus. When an individual is extremely relaxed a sudden loud stimulus causes little or no start and seems to lose its irritating character; while the same kind of stimulus, when an individual is in a state of muscular tenseness, will bring about a start and very considerable muscular contraction. (PsycINFO Database Record (c) 2012 APA, all rights reserved)<p />",
language="",
issn="0022-1015",
doi="10.1037/h0072591",
url="http://dx.doi.org/10.1037/h0072591"
}