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Motion Processing in Human Visual Cortex
Published in Jon H. Kaas, Christine E. Collins, The Primate Visual System, 2003
Randolph Blake, Robert Sekuler, Emily Grossman
A portion of the output from V1 destined for dorsal portions of the brain, in the parietal lobe, innervates a retinotopically organized brain region located near the junction of the transverse occipital sulcus and the intraparietal sulcus (Figure 13.2). This dorsal extrastriate area, called V3a, was shown by Tootell et al.66 to be motion sensitive. In fact, subsequent studies have shown that V3a exhibits the strongest direction selectivity of any of the retinotopically defined areas,62 and it responds much more strongly to coherent motion of random dots than to incoherent, random motion.58 Culham et al.67 discuss possible homologies between human V3a and monkey visual area V3.
Developmental prosopagnosia with concurrent topographical difficulties: A case report and virtual reality training programme
Published in Neuropsychological Rehabilitation, 2019
Sarah Bate, Amanda Adams, Rachel Bennetts, Hannah Line
Such an investigation would also be of particular value given that topographical disorientation deficits following brain injury appear to have a broad range of underpinnings, where various taxonomies have identified difficulties in landmark and scene recognition, as well as in the processing of spatial relationships or the formation and retrieval of cognitive maps (e.g., Aguirre & D’Esposito, 1999; Arnold et al., 2013; De Renzi, 1982; Liu et al., 2011). This variability in acquired cases is unsurprising given the widespread nature of brain lesions: landmark agnosia has been associated with damage to right ventral temporo-occipital cortex (McCarthy, Evans, & Hodges, 1996; Pai, 1997), scene categorisation with the transverse occipital sulcus (Bettencourt & Xu, 2013; Dilks, Julian, Paunov, & Kanwisher, 2013), and both processes to the parahippocampal place area (Epstein, Harris, Stanley, & Kanwisher, 1999; O’Craven & Kanwisher, 2000). Cognitive map formation has been linked to both the right and left hippocampi and the retrosplenial cortex (Iaria, Chen, Guariglia, Ptito, & Petrides, 2007).