Journal
ATTENTION PERCEPTION & PSYCHOPHYSICS
Volume 73, Issue 1, Pages 160-171Publisher
SPRINGER
DOI: 10.3758/s13414-010-0024-3
Keywords
Haptics; Kinesthesis; Dynamic touch; Perceptual learning; Cue integration
Categories
Funding
- National Science Foundation [BCS-0820154]
- Division Of Behavioral and Cognitive Sci [0820154] Funding Source: National Science Foundation
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In a single experiment, perceivers held unseen rods at some position along their lengths and reported the two partial lengths-to the left and to the right of the hand. Wielding was mechanically limited to a vertical plane. Previous research suggested that the information exploited for this task is captured in a space created from the moment of inertia and gravitational torque. The experiment reported here attempted to replicate the relevance of that space and to ask how exploration might access it. Perceivers were given feedback on accuracy on Blocks 2 and 3 of a four-block experiment, and their performance and position in information space were monitored. Exploratory movements were recorded. Judgments were shown to depend on inertial and gravitational torques, as expected. Analysis of exploratory movements suggested that occupying a locus in information space is equivalent to exploring at some angular acceleration. The apparent weighting of cues (gravitational and inertial torque), which might be interpreted as a cognitive process, was instead interpreted as a consequence of manner of exploration.
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