Phasic alerting of neglect patients overcomes their spatial deficit in visual awareness.

Provides evidence that the theory that phasically increasing alertness, in patients with extensive damage to the right hemisphere of the brain, should temporarily ameliorate their spatial bias in awareness. How patients with this type of injury exhibit unilateral neglect of the left side; How the spatial imbalance in the time course of visual awareness was corrected when a warning sound alerted the patients phasically.