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Brown J M, Guenther B A, 2012, "Magnocellular and parvocellular pathway influences on location-based inhibition-of-return" Perception 41(3) 319 – 338
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Magnocellular and parvocellular pathway influences on location-based inhibition-of-return

James M Brown, Benjamin A Guenther

Received 30 September 2011, in revised form 22 February 2012

Abstract. The roles of the parvocellular (P) and magnocellular (M) retino-geniculo-cortical pathways during shifts of visual attention were investigated by creating M/dorsal-biased (eg low spatial frequency target, no objects present) and P/ventral-biased (ie high spatial frequency target, the perception of 3-D objects) stimulus conditions and measuring location-based inhibition-of-return (IOR). P/ventral-biased conditions produced the greatest IOR. M/dorsal-biased conditions produced the least IOR, in one instance eliminating it altogether. The results indicate a close relationship between IOR magnitude and relative P/ventral and M/dorsal activity with location-based IOR related more to P/ventral than to M/dorsal activity.
Keywords: attention, inhibition-of-return, parvocellular and magnocellular pathways

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