Sergent J, Lorber E
Brain Cogn. 1983 Jan;2(1):39-54. doi: 10.1016/0278-2626(83)90028-3.
The suggestion of a functional hemispheric dissociation in performing perceptual categorization was examined in two tachistoscopic experiments with normal adults. Subjects were required to match physically identical or similar, but nonidentical, pictures of animals. The first experiment showed no hemispheric difference and indicated that both hemispheres could resort to two different types of categorization process as a function of the simultaneous or delayed mode of presentation of the stimuli. In the second experiment, the viewing conditions were manipulated so as to afford a reduced amount of stimulus energy, and a significant left-visual-field advantage was then obtained. The results are discussed with respect to models of information processing in the cerebral hemispheres, and in relation to impairments in object recognition following brain damage.
在两项针对正常成年人的速示实验中，对执行感知分类时功能性半球分离的建议进行了检验。要求受试者匹配动物的外观相同或相似但不完全相同的图片。第一个实验未显示出半球差异，并表明两个半球都可以根据刺激呈现的同时或延迟模式采用两种不同类型的分类过程。在第二个实验中，对观察条件进行了操纵，以减少刺激能量，然后获得了显著的左视野优势。根据大脑半球信息处理模型以及脑损伤后物体识别障碍对结果进行了讨论。
