Enhancement of selective listening by illusory mislocation of speech sounds due to lip-reading
Article Abstract:
Cross-modal matching, which produces an illusion of the mislocation of sounds at their visual source, improves somewhat selective spatial attention during speech processing. Speech perception includes both sounds and lip-reading even in individuals with good hearing. The matching takes place before auditory spatial selection is over and ventriloquism improves auditory spatial selection. Visual images that do not match the target sounds decrease performance, but compensate for this by relating the undesired sounds to the lip movements and isolating the desired sounds.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
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Preserved figure-ground segregation and symmetry perception in visual neglect
Article Abstract:
The theory that figures are perceivable as separate from their backgrounds before conscious attention has been focused on them received strong support from tests of a 69-year-old, brain-damaged stroke patient. The patient, identified as C.C., disregards objects on the left while still being able to distinguish figures from their backgrounds. This bears out the preattentive segregation model over the alternative idea that visual attention begins by perceiving figures and backgrounds as units.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1992
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Phasic alerting of neglect patients overcomes their spatial deficit in visual awareness
Article Abstract:
Patients with damage to the right hemisphere of the brain often show unilateral neglect of the left side of space. Such lesions also impair tonic alertness and the two impairments may be linked. Evidence supports the theory that phasically increasing the patients' alertness should temporarily ameliorate spatial bias in awareness, following investigations of right-hemisphere-neglect patients.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
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