Spatiotemporal processing of whisker input supports texture discrimination by a brain-based device

Seth, Anil K, McKinstry, Jeffrey L, Edelman, Gerald M and Krichmar, Jeffrey L (2004) Spatiotemporal processing of whisker input supports texture discrimination by a brain-based device. In: Schaal, S, Ijspeert, AJ, Billard, A, Vijayakumar, S, Hallam, J and J.-A. Meyer, (eds.) Proceedings of the 8th Conference on the Simulation of Adaptive Behavior. MIT Press.

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Abstract

Sensory signals from whiskers are typically rich in both spatial and temporal structure, and are used by many animals to guide a variety of adaptive behaviors. To explore possible neural mechanisms underlying whisker-guided behavior, we constructed Darwin IX, a mobile physical device equipped with artificial whiskers and a neural simulation based on the rat somatosensory (whisker) system. We show that neuronal units with time-lagged response properties, together with the selective modulation of neural connection strengths, provide a plausible neural mechanism for the spatiotemporal transformations of sensory input necessary for both texture discrimination and selective conditioning to textures.

Item Type: Book Section
Schools and Departments: School of Engineering and Informatics > Informatics
Depositing User: Anil Seth
Date Deposited: 06 Feb 2012 21:18
Last Modified: 13 Apr 2012 13:18
URI: http://sro.sussex.ac.uk/id/eprint/30719
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