Visual search and coordination changes in response to video and point-light demonstrations without KR.

The authors examined the observational learning of 24 participants whom they constrained to use the model by removing intrinsic visual knowledge of results (KR). Matched participants assigned to video (VID), point-light (PL), and no-model (CON) groups performed a soccer-chipping task in which vision was occluded at ball contact. Pre- and posttests were interspersed with alternating periods of demonstration and acquisition. The authors assessed delayed retention 2-3 days later. In support of the visual perception perspective, the participants who observed the models showed immediate and enduring changes to more closely imitate the model's relative motion. While observing the demonstration, the PL group participants were more selective in their visual search than were the VID group participants but did not perform more accurately or learn more.

[1]  R. Magill,et al.  A visual model and knowledge of performance as sources of information for learning a rhythmic gymnastics skill. , 1996 .

[2]  G. Johansson.  Visual motion perception. , 1975, Scientific American.

[3]  D. Scully.  Visual perception of technical execution and aesthetic quality in biological motion , 1986 .

[4]  J. Gibson.  The perception of the visual world , 1951 .

[5]  S. Bennett,et al.  Skill acquisition in sport: some applications of an evolving practice ecology. , 1997, Journal of sports sciences.

[6]  P. N. Kugler,et al.  1 On the Concept of Coordinative Structures as Dissipative Structures: I. Theoretical Lines of Convergence* , 1980 .

[7]  K. Newell.  Coordination, Control and Skill , 1985 .

[8]  Simon J. Bennett,et al.  Specificity of Task Constraints and Effects of Visual Demonstrations and Verbal Instructions in Directing Learners' Search During Skill Acquisition , 2001, Journal of motor behavior.

[9]  V. Bruce,et al.  Visual Perception: Physiology, Psychology and Ecology , 1985 .

[10]  P. N. Kugler,et al.  Search Strategies and the Acquisition of Coordination , 1989 .

[11]  N. A. Bernshteĭn.  The co-ordination and regulation of movements , 1967 .

[12]  J. Cutting,et al.  The minimum principle and the perception of absolute, common, and relative motions , 1982, Cognitive Psychology.

[13]  Timothy D. Lee,et al.  Motor Control and Learning: A Behavioral Emphasis , 1982 .

[14]  S. Geisser,et al.  On methods in the analysis of profile data , 1959 .

[15]  D. Southard,et al.  Changing Movement Patterns: Effects of Demonstration and Practice , 1987 .

[16]  R. Bartlett,et al.  Research design and statistics in biomechanics and motor control , 2001, Journal of sports sciences.

[17]  K. Newell,et al.  Augmented Information and the Acquisition of Skill in Physical Activity , 1985, Exercise and sport sciences reviews.

[18]  J. Gibson.  The Ecological Approach to Visual Perception , 1979 .

[19]  A. Bandura.  Social learning theory , 1977 .

[20]  G. Johansson.  Visual perception of biological motion and a model for its analysis , 1973 .