From: Jerry Hobbs (hobbs@ISI.EDU)
Date: 04/15/03
attached mail follows:
Hi Jerry, Looked at slides. Nice. Some thoughts from a psychological perspective (how people think about different spaces and the things in them). On topology. Definitely need degrees of relationships, of course this doesn't sit well with topology, but it's not metric either. Frames of reference. Person based may be too broad, there are myriad body frames of reference associated with different neural systems, which need to be integrated: eyes, head, hand, foot, chest, and on and on. Shape. Need repetition in addition to symmetry. You need parts (I just learned there's a stage in drawing where kids often draw disconnected parts of objects instead of whole objects!). Do you need to think about 2-D/3-D? You also need transformations of shapes (rotation, size, but also shape and part transformations). We argue that there are two basic kinds of spatial mental transformations, those that are object based like mental rotation and those that are egocentric based, like changing one's perspective in a surrounding environment. That's it for now. Barbara -- ****************************************************************************** Office Home Department of Psychology Bldg 420 972 Mears Court Stanford University Stanford, CA 94305 Stanford, CA 94305-2130 Office: 650.725.2440 Land: 650.857.1356 Fax: 650.725.5699 Mobile: 650.814.7922 *******************************************************************************
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