Journal
NEUROCOMPUTING
Volume 44, Issue -, Pages 479-487Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0925-2312(02)00405-8
Keywords
vision; thalamus; signal processing; feed-forward inhibition; computational neuroscience
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Based on recently available anatomical and physiological data, we propose a specific pattern of connectivity between relay and local interneuron cells in the lateral geniculate nucleus of the cat that can serve a more complex role in visual information processing than simply sharpen the receptive fields of relay cells. We treat a thalamic network composed of biophysical models of relay and interneuron cells receiving their input from partially overlapping retinal ON and OFF receptive field groups. A mechanism is proposed through which parallel processing and lateral inhibition in the forward direction can enhance spatial resolution at the thalamic level. (C) 2002 Elsevier Science B.V. All rights reserved.
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