GYRAL DEVELOPMENT OF HUMAN-BRAIN
GYRAL DEVELOPMENT OF HUMAN-BRAIN
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DOI：
10.1002/ana.410010109
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发表时间：
1977-01-01
影响因子：
11.2
通讯作者：
GILLES, FH
中科院分区：
文献类型：
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作者：
CHI, JG;DOOLING, EC;GILLES, FH
为了确定大脑半球卷积模式的发育，我们检查了 10 至 44 周胎龄婴儿的 507 个大脑的多张大体照片和 207 个大脑的连续切片。整个妊娠期大脑半球的各个裂隙、沟和回的顺序发育变化被制成表格。由放大照片制成的示意图显示了与妊娠中期和晚期每个月相关的主要变化。与非双胞胎相比，胎龄 19 至 32 周的双胞胎大脑中卷积标记的发育延迟了大约两到三周。男性和女性大脑之间没有显着差异。我们发现颞横回、外侧裂和颞平面左右不对称。一般来说，右脑半球比左脑更早表现出脑回复杂性。我们的研究结果可以推测大脑左右不对称的重要性，因为它会影响言语和语言的发展。
To determine the development of the convolutional pattern of the cerebral hemispheres, we have examined multiple gross photographs of 507 brains and serial sections of 207 brains from infants of 10 to 44 weeks' gestational age. The sequential developmental changes of the individual fissures, sulci, and gyri of the cerebral hemispheres throughout the gestational period are tabulated. Schematic drawings made from enlarged photographs show the major changes associated with each month of the second and third trimesters.The brains of twins between 19 and 32 weeks' gestational age show a delay of approximately two to three weeks in the development of convolutional markings compared with the brains of nontwins. There is no significant difference between male and female brains.We found left‐right asymmetries of the transverse temporal gyri, sylvian fissures, and planum temporale. In general, the right cerebral hemisphere shows gyral complexity earlier than the left. Our findings allow speculation about the significance of left‐right asymmetry of the brain as it affects speech and language development.