Stages of manual exploration in haptic object identification.
Identifieur interne : 009F02 ( Main/Merge ); précédent : 009F01; suivant : 009F03Stages of manual exploration in haptic object identification.
Auteurs : R L Klatzky ; S J LedermanSource :
- Perception & psychophysics [ 0031-5117 ] ; 1992.
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- KwdEn :
- MESH :
Abstract
In a yes/no identification task using touch alone, subjects indicated whether an object belonged to a named category. Previously, we found that subjects explored in two stages--first grasping and lifting the object, then executing further exploratory procedures (Lederman & Klatzky, 1990b). We proposed that Stage 1 (grasp/lift) was sufficient to extract coarse information about multiple object properties, whereas Stage 2 was directed toward precise information about particularly diagnostic properties. In the current study, subjects were initially constrained to grasping and lifting, after which they could explore further. Accuracy was above chance after Stage 1, confirming our assumption that the grasp/lift combination was broadly useful. Stage 2 increased accuracy and confidence. It primarily elicited exploratory procedures associated with object geometry, but exploration was also influenced by diagnostic object properties.
PubMed: 1287570
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pubmed:1287570Le document en format XML
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