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Impaired perceptual memory of locations across gaze-shifts in patients with unilateral spatial neglect VUILLEUMIER, Patrik, et al. Right hemisphere lesions often lead to severe disorders in spatial awareness and behavior, such as left hemispatial neglect. Neglect involves not only pathological biases in attention and exploration but also deficits in internal representations of space and spatial working memory. Here we designed a new paradigm to test whether one potential component may involve a failure to maintain an updated representation of visual locations across delays when a gaze-shift intervenes. Right hemisphere patients with varying severity of left spatial neglect had to encode a single target location and retain it across an interval of 2 or 3 sec, during which the target was transiently removed, before a subsequent probe appeared for a same/different location judgment. During the delay, gaze could have to shift to either side of the remembered location, or no gaze-shift was required. Patients showed a dramatic loss of memory for target location after shifting gaze to its right (toward their "intact " ipsilesional side), but not after leftward gaze-shifts. Such impairment arose even when the target initially appeared in the right visual [...] VUILLEUMIER, Patrik, et al. Impaired perceptual memory of locations across gaze-shifts in patients with unilateral spatial neglect. Journal of Cognitive Neuroscience, 2007, vol. 19, no