Graduate studies at Western
Synthese 104 (1):33 - 41 (1995)
|Abstract||Several authors have characterized a striking phenomenon of perceptual learning in visual discrimination tasks. This learning process is selective for the stimulus characteristics and location in the visual field. Since the human visual system exploits symmetry for object recognition we were interested in exploring how it learns to use preattentive symmetry cues for discriminating simple, meaningless, forms. In this study, similar to previous studies of perceptual learning, we asked whether the effects of practice acquired in the discrimination of pairs of shape with a specific orientation of the symmetry axis would transfer to the discrimination of shapes with different orientation of symmetry axis, or to shapes presented in different areas of the visual field. We found that there was no learning transfer between forms with very different axes of symmetry (90° apart). Interestingly, however, we found a transfer of learning effect to horizontally oriented symmetry axis from a condition with an axis of symmetry differing by 45°. Also it appears that some subjects took a longer time to learn than the typical fast learning paradigm would predict. Data showed that when observers practice discrimination of meaningless symmetric forms, consistent improvement in the performance occurs. This improvement is lasting over days, and it tends to be specific for the area of the visual field trained. We will discuss results from some of the observers whose learning was not fast, but who actually improved with more practice and with large time intervals (1 day) between training sessions.|
|Keywords||No keywords specified (fix it)|
|Categories||categorize this paper)|
|Through your library||Configure|
Similar books and articles
Kasper Lippert-rasmussen (2006). The Badness of Discrimination. Ethical Theory and Moral Practice 9 (2):167 - 185.
Rolf Reber (2002). Reasons for the Preference for Symmetry. Behavioral and Brain Sciences 25 (3):415-416.
Hjalmar K. Turesson & Asif A. Ghazanfar (2012). Statistical Learning of Social Signals and its Implications for the Social Brain Hypothesis. Interaction Studies 12 (3):397-417.
Rankin W. McGugin, James W. Tanaka, Sophie Lebrecht, Michael J. Tarr & Isabel Gauthier (2011). Race-Specific Perceptual Discrimination Improvement Following Short Individuation Training With Faces. Cognitive Science 35 (2):330-347.
Paul Vogt & Andrew D. M. Smith (2005). Learning Colour Words is Slow: A Cross-Situational Learning Account. Behavioral and Brain Sciences 28 (4):509-510.
Mariko Moher, Lisa Feigenson & Justin Halberda (2010). A One-to-One Bias and Fast Mapping Support Preschoolers' Learning About Faces and Voices. Cognitive Science 34 (5):719-751.
Paul T. Sowden (1999). Expert Perceivers and Perceptual Learning. Behavioral and Brain Sciences 22 (3):396-397.
T. Lambert (2003). Visual Orienting, Learning and Conscious Awareness. In Luis Jimenez (ed.), Attention and Implicit Learning. John Benjamins.
Sorry, there are not enough data points to plot this chart.
Added to index2009-01-28
Recent downloads (6 months)0
How can I increase my downloads?