The proposed work will continue a program of empirical and theoretical research that seeks to understand the sensory and non-sensory factors that limit the perception of tactile spatiotemporal patterns. The earlier research has led to a model of recognition of static raised characters sensed by the finger. The major thrust of the work will be to further test the model and hopefully extend it to a broader empirical domain (to spatiotemporal patterns presented to different body sites using a variety of tactile displays). Among the experiments being proposed are (1) further work on the measurement of cutaneous spatial sensitivity using sinewave gratings, (2) a comparison of pattern perception at different body loci, (3) an attempt to disentangle sensory and non-sensory factors that account for the large individual differences in tactile pattern perception and (4) tactile (and visual) recognition of characters drawn from various set sizes (e.g., 8, 15, 26 characters).

Agency
National Institute of Health (NIH)
Institute
National Institute of Neurological Disorders and Stroke (NINDS)
Type
Research Project (R01)
Project #
2R01NS015129-07
Application #
3395994
Study Section
Communication Sciences and Disorders (CMS)
Project Start
1979-03-01
Project End
1989-12-31
Budget Start
1986-08-01
Budget End
1987-12-31
Support Year
7
Fiscal Year
1986
Total Cost
Indirect Cost
Name
University of California Santa Barbara
Department
Type
Schools of Arts and Sciences
DUNS #
City
Santa Barbara
State
CA
Country
United States
Zip Code
93106
Loomis, J M (1993) Counterexample to the hypothesis of functional similarity between tactile and visual pattern perception. Percept Psychophys 54:179-84
Eby, D W; Loomis, J M; Solomon, E M (1989) Perceptual linkage of multiple objects rotating in depth. Perception 18:427-44