Golbarg Tarighat Saber

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Saccade planning may invoke spatially-specific feedback signals that bias early visual activity in favor of top-down goals. We tested this hypothesis by measuring cortical activity at the early stages of the dorsal and ventral visual processing streams. Human subjects maintained saccade plans to (prosaccade) or away (antisaccade) from a spatial location(More)
The full or partial recovery of cognitive functions following brain lesions is believed to rely on the recruitment of alternative neural networks. This has been shown anatomically for selective auditory cognitive functions (Adriani et al. 2003b). We investigate here behavioral correlates that may accompany the use of alternative processing networks and in(More)
Although the content of working memory (WM) can be decoded from the spatial patterns of brain activity in early visual cortex, how populations encode WM representations remains unclear. Here, we address this limitation by using a model-based approach that reconstructs the feature encoded by population activity measured with fMRI. Using this approach, we(More)
nent contribution of the temporal, parietal and prefrontal cortices (Alain et al., 2001; Griffiths et al., 1998, 2000; Bushara et al., 1999; Maeder et al., 2001). It has also been shown that the basal ganglia are involved in spatial attention in non-human primates (Boussaoud and Kermadi, 1997) and human (Mesulam, 1990; Filoteo et al., 1997; Gitelman et al.,(More)
The read-out of prioritized maps of space in frontal cortex is believed to provide the spatial feedback signals needed to bias activity in early visual cortex. These feedback signals can be spatially directed via a saccade plan. Maintaining a saccade plan in working memory, therefore, may evoke a pattern of activity in topographically organized population(More)
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