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Haptic Processing of the Location of a Known Property: Does Knowing What You've Touched Tell You Where It Is?

Year: 2004

Type: article

Abstract: The relationship between knowing where a haptic property is located and knowing what it is was investigated using a haptic-search paradigm. Across trials, from one to six stimuli were presented simultaneously to varying combinations of the middle three fingertips of both hands. Participants reported the presence/absence of a target or its location for four perceptual dimensions: rough/smooth, edge/no edge, relative position (right/left), and relative orientation (right/left). Reaction time data were plotted as a function of set size. The slope data indicated no difference in processing load for location as compared to identity processing. However, the intercept data did reveal a cost associated with processing location information. Location information was not obtained for "free" when identity was processed. The data also supported a critical distinction between material and edge dimensions versus geometric dimensions, as the size of the cost associated with processing location was larger for spatial than for intensive stimuli.

Source: Canadian Journal of Experimental Psychology/Revue canadienne de psychologie expérimentale

DOI: 10.1037/h0087438

Authors: Kimberly A. Purdy, Susan J. Lederman, Roberta L. Klatzky

Institutions: University of South Carolina Upstate, University of South Carolina

Language: English

Topic: Tactile and Sensory Interactions

Subfield: Cognitive Neuroscience

Field: Neuroscience

Domain: Life Sciences

Open Access status: green

OpenAlex ID: W1974847264

FWCI: 0.338

Cites: 15

Cited by: 12

Related to: 10