PDF(Pubmed)
Abstract：
UNASSIGNED: The visual system is not fully mature at birth and continues to develop throughout infancy until it reaches adult levels through late childhood and adolescence. Disruption of vision during this postnatal period and prior to visual maturation results in deficits of visual processing and in turn may affect the development of complementary senses. Studying people who have had one eye surgically removed during early postnatal development is a useful model for understanding timelines of sensory development and the role of binocularity in visual system maturation. Adaptive auditory and audiovisual plasticity following the loss of one eye early in life has been observed for both low-and high-level visual stimuli. Notably, people who have had one eye removed early in life perceive the McGurk effect much less than binocular controls.
UNASSIGNED: The current study investigates whether multisensory compensatory mechanisms are also present in people who had one eye removed late in life, after postnatal visual system maturation, by measuring whether they perceive the McGurk effect compared to binocular controls and people who have had one eye removed early in life.
UNASSIGNED: People who had one eye removed late in life perceived the McGurk effect similar to binocular viewing controls, unlike those who had one eye removed early in life.
UNASSIGNED: This suggests differences in multisensory compensatory mechanisms based on age at surgical eye removal. These results indicate that cross-modal adaptations for the loss of binocularity may be dependent on plasticity levels during cortical development.
UNASSIGNED: The current study investigates whether multisensory compensatory mechanisms are also present in people who had one eye removed late in life, after postnatal visual system maturation, by measuring whether they perceive the McGurk effect compared to binocular controls and people who have had one eye removed early in life.
UNASSIGNED: People who had one eye removed late in life perceived the McGurk effect similar to binocular viewing controls, unlike those who had one eye removed early in life.
UNASSIGNED: This suggests differences in multisensory compensatory mechanisms based on age at surgical eye removal. These results indicate that cross-modal adaptations for the loss of binocularity may be dependent on plasticity levels during cortical development.
摘要：
■视觉系统在出生时还没有完全成熟，并且在整个婴儿期一直持续发展，直到在儿童后期和青春期达到成人水平。在出生后和视觉成熟之前，视力的破坏会导致视觉处理的缺陷，进而可能会影响互补感官的发展。研究在出生后早期发育过程中手术切除一只眼睛的人是了解感觉发育的时间表以及双眼在视觉系统成熟中的作用的有用模型。对于低水平和高水平的视觉刺激，都观察到了生命早期一只眼睛丧失后的自适应听觉和视听可塑性。值得注意的是,在生命早期摘除一只眼睛的人对McGurk效应的感知远低于双眼对照。
■当前的研究调查了在生命后期摘除一只眼睛的人是否也存在多感官代偿机制，产后视觉系统成熟后，通过测量他们是否感知到McGurk效应，与双眼对照和早期切除一只眼睛的人相比。
■在生命后期摘除一只眼睛的人感觉到McGurk效应类似于双眼观看控制，不像那些在生命早期切除一只眼睛的人。
■这表明手术取眼时基于年龄的多感觉代偿机制存在差异。这些结果表明，双眼性丧失的跨模态适应可能取决于皮质发育过程中的可塑性水平。
■当前的研究调查了在生命后期摘除一只眼睛的人是否也存在多感官代偿机制，产后视觉系统成熟后，通过测量他们是否感知到McGurk效应，与双眼对照和早期切除一只眼睛的人相比。
■在生命后期摘除一只眼睛的人感觉到McGurk效应类似于双眼观看控制，不像那些在生命早期切除一只眼睛的人。
■这表明手术取眼时基于年龄的多感觉代偿机制存在差异。这些结果表明，双眼性丧失的跨模态适应可能取决于皮质发育过程中的可塑性水平。
