Tests of the abilities to judge ratios of extensive and intensive sensory magnitudes

Masin, Sergio Cesare, Brancaccio, Andrea and Tomassetti, Andrea (2019) Tests of the abilities to judge ratios of extensive and intensive sensory magnitudes. Attention, Perception, and Psychophysics, 81 (6). pp. 2102-2119. ISSN 1943-3921

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Abstract

The assumption that people are able to numerically judge ratios of sensory magnitude is often used to scale sensations. In this study, we tested this assumption for the extensive sensation of length and the intensive sensations of heaviness and brightness. A ratio model fit judged length ratios accurately and fit judged heaviness and brightness ratios inaccurately. Also, most participants could not judge brightness ratios, even if they seemed able to respond nonverbally to the brightness ratios. These results suggest that people may generally be able to judge extensity ratios but not intensity ratios. Participants used auxiliary judgment operations to compensate for their lack of ability to judge intensity ratios. These auxiliary, nonratio operations were found to yield linear scales of intensive sensory magnitude.

Item Type:	Article
Additional Information:	Publisher Copyright: © 2019, The Psychonomic Society, Inc.
Uncontrolled Keywords:	extensive sensations,intensive sensations,ratio judgment,language and linguistics,experimental and cognitive psychology,sensory systems,linguistics and language ,/dk/atira/pure/subjectarea/asjc/1200/1203
Faculty \ School:	Faculty of Social Sciences > School of Psychology
Related URLs:	http://www.scopus.com/inward/record.url?...
Depositing User:	LivePure Connector
Date Deposited:	16 Dec 2025 13:30
Last Modified:	19 Dec 2025 10:33
URI:	https://ueaeprints.uea.ac.uk/id/eprint/101415
DOI:	10.3758/s13414-019-01710-x

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