STRENGTHS & WEAKNESSES 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