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Jiang, X., Bradley, E., Rini , R.A., Zeffiro , T., VanMeter , J., Riesenhuber , M. (2007). Categorization training results in shape- and category-selective human neural plasticity. Neuron, 53 , 891-903. THEORY AND METHODS. FINDINGS & GRAPHIC.
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Jiang, X., Bradley, E., Rini, R.A., Zeffiro, T., VanMeter, J., Riesenhuber, M. (2007). Categorization training results in shape- and category-selective human neural plasticity. Neuron, 53, 891-903. THEORY AND METHODS FINDINGS & GRAPHIC How do people represent new categories in the brain and how does this interact with fine object discrimination? • Late visual areas (LO) showed increased discrimination between stimuli after training and sensitivity to category boundaries. • Right Pre-frontal cortex BOLD activity level correlated with categorization ability after training Scan Category training Scan again STRENGTHS & WEAKNESSES Strengths: careful stimulus creation, interesting look at basic perception versus higher-level generalizations Weaknesses: No account for differences in direction of BOLD signal. Would be interesting to see this with conceptual categorization instead of a shape categorization. Jessica Tsang | ED368 Cognitive Development | 5.4.2009