Related Experiment Video
Updated: May 20, 2026

Using Looming Visual Stimuli to Evaluate Mouse Vision
Published on: June 13, 2019
Magnocellular and parvocellular pathway influences on location-based inhibition-of-return
James M Brown1, Benjamin A Guenther
1Department of Psychology, University of Georgia, Athens, GA 30602-3013, USA. jmbrown@uga.edu
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.
Related Concept Videos
Indirect Motor Pathways
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
Major Somatic Sensory Pathways
Vision
Feedback Inhibition
Overview of Somatic Sensory Pathways
The somatosensory system is divided into three main pathways: the dorsal (or posterior) column-medial lemniscus, spinothalamic (or anterolateral), and spinocerebellar pathways.
The dorsal...
Diencephalon: Anatomical Regions

