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Article
Monocular Optical Constraints on Collision Control
Journal of Experimental Psychology: Human Perception and Performance
  • Matthew R. H. Smith
  • John M. Flach, Wright State University - Main Campus
  • Scott M. Dittman
  • Terry Stanard
Document Type
Article
Publication Date
4-1-2001
Abstract
A simulated ball-hitting task was used to explore the optical basis for collision control. Ball speed and size were manipulated in Experiments 1 and 2. Results showed a tendency for participants to respond earlier to slower and larger balls. Early in practice, participants would consistently miss the slowest and largest balls. Experiments 3 and 4 examined performance as a function of the range of speeds. Performance for identical speeds differed depending on whether the speeds were fastest or slowest within a range. Asymmetric transfer between the 2 ranges of speeds showed that those trained with slow speeds were very successful when tested with a faster range of speeds. Those trained with fast speeds did not do as well when tested on slower speeds. The pattern of results across 4 experiments suggests that participants were using optical angle and expansion rate as separate degrees of freedom for solving the collision task.
DOI
10.1037/0096-1523.27.2.395
Citation Information
Matthew R. H. Smith, John M. Flach, Scott M. Dittman and Terry Stanard. "Monocular Optical Constraints on Collision Control" Journal of Experimental Psychology: Human Perception and Performance Vol. 27 Iss. 2 (2001) p. 395 - 410 ISSN: 00961523
Available at: http://works.bepress.com/john_flach/102/