Effects of overtraining, irrelevant stimuli, and training task on reversal discrimination learning in children |
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| Authors: | P D Eimas |
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| Affiliation: | 1. Center for Molecular and Behavioral Neuroscience, Rutgers University, Newark, NJ 07102, USA;2. MRC Brain Network Dynamics Unit, University of Oxford, Oxford OX1 3TH, UK;1. Institute for Memory Impairments and Neurological Disorders, University of California-Irvine, Irvine, CA, USA;2. Department of Statistics, University of California, Irvine, CA, USA;3. Statistics Department, University of California, Irvine, CA, USA;4. Institute for Genomics and Bioinformatics, School of Information and Computer Sciences, University of California, Irvine, CA, USA;5. Department of Neurological Sciences, Rush Alzheimer''s Disease Center, Rush University Medical Center, Chicago, IL, USA;6. Department of Neurology, University of California-Irvine, Irvine, CA, USA;1. División de Neurociencias, Departamento de Neurociencia Cognitiva, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México D.F., México;2. Laboratorio de Neurobiología del Aprendizaje y la Memoria, Facultad de Psicología, División de Investigación y Estudios de Posgrado, Universidad Nacional Autónoma de México, México D.F., México;1. Aix-Marseille University, Département de Biologie, Parc Scientifique de Luminy, 13273 Marseille, France;2. INSERM-Institut National de la Santé et de la Recherche Médicale, UMR 1249, Marseille, Parc Scientifique de Luminy, 13273 Marseille, France;3. INMED-Institut de Neurobiologie de la Méditerranée, Parc Scientifique de Luminy, 13273 Marseille, France;1. Department of Informatics, Federal University of Maranhão, São Luís, MA, Brazil;2. Oswaldo Cruz Foundation, House of Oswaldo Cruz, Museum of Life, Rio de Janeiro, RJ, Brazil;3. Center for Mathematics, Computation and Cognition, Federal University of ABC, Santo André, SP, Brazil;1. SEA AI Lab, Singapore, Singapore;2. Carnegie Mellon University, Pittsburgh, PA, United States;3. Key Lab. of Machine Perception, School of EECS, Peking University, Beijing, P.R. China |
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| Abstract: | In Exp. I the effects of overtraining, number of variable irrelevant dimensions, and type of two-choice simultaneous discrimination task on the reversal learning of second-grade children were investigated. Overtraining facilitated reversal learning for color and form (nonspatial) discriminations and had only a slight effect on spatial discriminations. Increasing the number of irrelevant dimensions enhanced, although not significantly, the overtraining reversal effect (ORE) found with nonspatial problems. In Exp. 2 kindergarten children were tested on a spatial discrimination with either zero or two irrelevant dimensions and then administered a reversal shift with half of the Ss receiving overtraining on Problem 1. Two irrelevant dimensions retarded original learning and overtraining retarded reversal learning. The data were interpreted as being consistent with mediational models of discrimination learning provided certain assumptions concerning the perceptual dominance of positional cues were made. |
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