Plucks and bows are categorically perceived, sometimes

Plucks and bows are categorically perceived, sometimes.

Cutting and Rosner lPerception & Psychophysics, 1974, 16, 564-570} reported that sawtooth wavetrains were perceived categorically when an array was varied in linear rise time increments. That is, rapid rise time stimuli were identified as plucked strings and slower rise time stimuli as bowed strings, and pluck-bow comparisons were relatively easy to discriminate but pluck-pluck and bow-bow comp...

Perfect Maps Are Exponentiable - Categorically

A categorical proof of the statement given by the title is provided, in generalization of a result for topological spaces proved recently by Clementino, Hofmann and Tholen.

Sometimes Updates Are Circumscription

Model-based revision of knowledge bases ex­ pressed as first-order theories was shown in [Winslett 88b] to be useful as a means of de­ scribing and reasoning about the effects of ac­ tions. This paper shows that model-based the­ ory revision is actually expressible as a form of circumscription. This shows that in cer­ tain applications, the cumbersome conceptu­ ally machinery of circumscription...

Topological Relations between Objects Are Categorically Coded

How do individuals compare images-for example, two graphs or diagrams-to identify differences between them? We argue that categorical relations between objects play a critical role. These relations divide continuous space into discrete categories, such as "above" and "below," or "containing" and "overlapping," which are remembered and compared more easily than precise metric values. These relat...

Why the past is sometimes perceived, and not only remembered