Seltzer B, Pandya D N
Department of Psychiatry and Neurology, Tulane University School of Medicine, New Orleans 70112.
J Comp Neurol. 1991 Oct 22;312(4):625-40. doi: 10.1002/cne.903120412.
The efferent connections of different cytoarchitectonic areas of the superior temporal sulcus (STS) in the rhesus monkey with parieto-temporo-occipital cortex were investigated using autoradiographic methods. Four rostral-to-caudal subdivisions of cortex (area TPO) in the upper bank of the STS have distinct projection patterns. Rostral sectors (areas TPO-1 and -2) project to the rostral superior temporal gyrus (areas Ts1, Ts2, and Ts3), insula of the Sylvian fissure, and parahippocampal gyrus (perirhinal and prorhinal cortexes, areas TF, TH, and TL); caudal sectors (TPO-3 and -4) project to the caudal superior temporal gyrus (areas paAlt and Tpt), supratemporal plane (area paAc), circular sulcus of the Sylvian fissure (area reIt), as well as medial paralimbic (areas 23, 24, and retrosplenial cortex) and extrastriate (areas 18 and 19) cortexes. Area TPO-1 does not project to the parietal lobe; area TPO-2 projects to the inferior parietal lobule; area TPO-3 to the lower bank of the intraparietal sulcus (IPS) (area POa); and area TPO-4 to medial parietal cortex (area PGm). Vision-related cortex (area TEa) in the rostral lower bank of the STS sends fibers to the rostral inferotemporal region (areas TE1, -2, and -3) and parahippocampal gyrus (perirhinal cortex, areas TF and TL). Visual zones in the caudal lower bank and depth of the sulcus (area OAa, or MT and FST) project to the caudal inferotemporal region (areas TE3 and TEO), lateral preoccipital region (area V4), and lower bank of the IPS (area POa). A zone in the rostral depth of the STS (area IPa) projects to the rostral inferotemporal region, parahippocampal gyrus, insula of the Sylvian fissure, parietal operculum, and lower rim of the IPS (area PG). STS projections to parieto-temporo-occipital cortex have "feedforward," "feedbackward," and "side-to-side" laminar patterns of termination similar to those of other cortical sensory systems. The differential connectivity supports the cytoarchitectonic parcellation of the STS and suggests functional heterogeneity.
采用放射自显影方法，研究了恒河猴颞上沟（STS）不同细胞构筑区与顶颞枕叶皮质之间的传出联系。STS上缘皮质的四个从嘴侧到尾侧的分区（TPO区）具有不同的投射模式。嘴侧部分（TPO-1和-2区）投射到嘴侧颞上回（Ts1、Ts2和Ts3区）、外侧裂岛叶和海马旁回（嗅周和嗅前皮质、TF、TH和TL区）；尾侧部分（TPO-3和-4区）投射到尾侧颞上回（paAlt和Tpt区）、颞上平面（paAc区）、外侧裂环沟（reIt区），以及内侧边缘旁（23、24区和压后皮质）和纹外（18和19区）皮质。TPO-1区不投射到顶叶；TPO-2区投射到顶下小叶；TPO-3区投射到顶内沟（IPS）下缘（POa区）；TPO-4区投射到顶叶内侧皮质（PGm区）。STS嘴侧下缘与视觉相关的皮质（TEa区）向嘴侧颞下区域（TE1、-2和-3区）和海马旁回（嗅周皮质、TF和TL区）发出纤维。沟尾侧下缘和深部的视觉区（OAa区，即MT和FST区）投射到尾侧颞下区域（TE3和TEO区）、枕前外侧区域（V4区）和IPS下缘（POa区）。STS嘴侧深部的一个区域（IPa区）投射到嘴侧颞下区域、海马旁回、外侧裂岛叶、顶叶岛盖和IPS下缘（PG区）。STS向顶颞枕叶皮质的投射具有与其他皮质感觉系统相似 “前馈”、“反馈” 和 “侧向” 的分层终止模式。这种不同的连接性支持了STS的细胞构筑分区，并提示了功能异质性。
