DIFFERENT NEURAL SYSTEMS FOR THE RECOGNITION OF ANIMALS AND MAN-MADE TOOLS

被引:237
作者
PERANI, D [1 ]
CAPPA, SF [1 ]
BETTINARDI, V [1 ]
BRESSI, S [1 ]
GORNOTEMPINI, M [1 ]
MATARRESE, M [1 ]
FAZIO, F [1 ]
机构
[1] UNIV BRESCIA,SCI INST HS RAFFAELE,I-20132 MILAN,ITALY
关键词
SEMANTIC KNOWLEDGE; VISUAL PERCEPTION; LIVING AND NONLIVING CATEGORIES; PET; ACTIVATION;
D O I
10.1097/00001756-199508000-00012
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
USING positron emission tomography, we mapped brain activity in normal volunteers during the recognition of visual stimuli representing living (animals) and nonliving (artefacts) entities. The subjects had to decide whether pairs of visual stimuli were different representations of the same object, or different objects. Animal recognition was associated with activations in the inferior temporo-occipital areas, bilaterally, whereas artefact recognition engaged a predominantly left hemispheric network, involving the left dorsolateral frontal cortex. These findings, which concur with clinical observations in neurological patients, provide in vivo evidence for a fractionation of the neural substrates of semantic knowledge in man.
引用
收藏
页码:1637 / 1641
页数:5
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