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Paper: PS-2A.13
Session: Poster Session 2A
Location: H Lichthof
Session Time: Sunday, September 15, 17:15 - 20:15
Presentation Time:Sunday, September 15, 17:15 - 20:15
Presentation: Poster
Publication: 2019 Conference on Cognitive Computational Neuroscience, 13-16 September 2019, Berlin, Germany
Paper Title: Goal-directed top-down control of perceptual representations: A computational model of the Wisconsin Card Sorting Test
Manuscript:  Click here to view manuscript
License: Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 Unported License.
Authors: Giovanni Granato, Gianluca Baldassarre, Laboratory of Computational Embodied Neuroscience, Italy
Abstract: In mammals, goal-directed behaviour, relying on an integrated network of fronto-striatal and fronto-parietal systems, supports the performance of flexible behavior. Here we focus on the contribution to such flexibility of top-down selection processes involving internal representations of percepts. We study these processes through a computational model able to solve the Wisconsin Card Sorting Test (WCST), an important neuropsychological test used for measuring cognitive flexibility. The analysis of the model behavior solving the WCST, and its errors resulting from different lesions, are comparable with those of healthy participants and patients with frontal impairments performing the test. The results represent a first validation of our hypothesis on the importance of internal representation selection for cognitive flexibility.