@article{ref1,
title="Categorical versus coordinate spatial relations: computational analyses and computer simulations",
journal="Journal of experimental psychology: human perception and performance",
year="1992",
author="Kosslyn, Stephen M. and Chabris, C. F. and Marsolek, C. J. and Koenig, O.",
volume="18",
number="2",
pages="562-577",
abstract="Results of 4 sets of neural network simulations support the distinction between categorical and coordinate spatial relations representations: (a) Networks that were split so that different hidden units contributed to each type of judgment performed better than unsplit networks; the reverse was observed when they made 2 coordinate judgments. (b) Both computations were more difficult when finer discriminations were required; this result mirrored findings with human Ss. (c) Networks with large, overlapping &quot;receptive fields&quot; performed the coordinate task better than did networks with small, less overlapping receptive fields, but vice versa for the categorical task; this suggests a possible basis for observed cerebral lateralization of the 2 kinds of processing. (d) The previously observed effect of stimulus contrast on this hemispheric asymmetry could reflect contributions of more neuronal input in high-contrast conditions.<p /> <p>Language: en</p>",
language="en",
issn="0096-1523",
doi="",
url="http://dx.doi.org/"
}