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Lookup NU author(s): Filippo Petroni,
Dr Stefano Panzeri,
Professor Malcolm Young
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The pattern of anatomical connections between areas of the primate visual system is organized hierarchically. However, onset latencies in parietal and occipital stations are often simultaneous, and this seems to contradict hierarchical organization in its simplest interpretation, as serial organization. To understand the reasons for this contradiction, we simulated the cortical network for which there is onset data, including the network's hierarchical structure. The network's dynamics reproduced the simultaneous onset latencies reported in several dorsal areas. These results show that a strictly hierarchical visual system is compatible with much more complex dynamics than serial processing, and that hodological and biophysical properties, are more closely related to onset dynamics than is hierarchical organisation. © 2001 Lippincott Williams & Wilkins.
Author(s): Petroni F; Young MP; Panzeri S; Hilgetag C-C; Kotter R
Publication type: Article
Publication status: Published
ISSN (print): 0959-4965
ISSN (electronic): 1473-558X
Publisher: Lippincott Williams & Wilkins
PubMed id: 11522961
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