Stimulus effects in unilateral neglect?

Unilaterally brain-damaged subjects and normal controls were administered parallel verbal and nonverbal forms of a visual cancellation task. The attentional theory of unilateral neglect, which predicts less manifest neglect on tasks that preferentially engage the damaged hemisphere, was not supported. Subjects who exhibited neglect did so to a comparable degree on both verbal and nonverbal tasks. The data are consistent with a model of right hemisphere dominance for attention across the visual field.