Nawrot M, Rizzo M, Rockland K S, Howard M
Department of Psychology, North Dakota State University, 58105, Fargo, ND, USA.
Vision Res. 2000;40(24):3435-46. doi: 10.1016/s0042-6989(00)00177-2.
We studied the motion perception abilities in a young adult, SF, who had her right occipito-temporal cortices resected to treat epilepsy. Following resection, SF showed transient deficits of both first- and second-order motion perception that recovered to normal within weeks. Previous human studies have shown either first- or second n order motion deficits that have lasted months or years after cerebral damage. SF also showed a transient defect in processing of shape-from-motion with normal perception of shape from non-motion cues. Furthermore, she showed greatly increased reaction times for a mental rotation task, but not for a lexical decision task. The nature and quick recovery of the deficits in SF resembles the transient motion perception deficit observed in monkey following ibotenic acid lesions, and provides additional evidence that humans possess specialized cortical areas subserving similar motion perception functions.
我们研究了一名年轻成年人SF的运动感知能力，她因治疗癫痫接受了右侧枕颞叶皮质切除术。切除术后，SF表现出一阶和二阶运动感知的短暂缺陷，这些缺陷在数周内恢复正常。先前的人体研究表明，脑损伤后一阶或二阶运动缺陷可持续数月或数年。SF在从运动中感知形状方面也表现出短暂缺陷，但对非运动线索的形状感知正常。此外，她在心理旋转任务中的反应时间大幅增加，但在词汇判断任务中没有。SF缺陷的性质和快速恢复类似于在猴子身上观察到的鹅膏蕈氨酸损伤后的短暂运动感知缺陷，并提供了额外证据，证明人类拥有专门的皮质区域来支持类似的运动感知功能。
