Pandya D N, Rosene D L, Doolittle A M
Edith Nourse Rogers Memorial Veterans Hospital, Bedford, Massachusetts 01730.
J Comp Neurol. 1994 Jul 15;345(3):447-71. doi: 10.1002/cne.903450311.
Corticothalamic connections of auditory areas of the superior temporal regions (STR) were investigated in the rhesus monkey. These connections are organized according to the recently described architectonic parcellation of the STR. The core line regions of the supratemporal plane (STP) project to the medial geniculate nucleus (MGN). All regions except the primary auditory area also have projections to additional thalamic nuclei. The rostral STP has strong connections with the caudal part of the ventral subdivision (MGv) of MGN as well as with medial pulvinar (PM). In contrast the primary auditory area projects mainly to rostral MGv. The caudalmost STP projects mainly to the dorsal subdivision (MGd) and to the magnocellular subdivision (MGmc) as well as to the PM and the lateral (PL) and oral (PO) pulvinar, nucleus limitans (Li), and mediodorsal (MD) nucleus. The belt line regions of the superior temporal gyrus (STG) project mainly to the pulvinar but also have projections to MGd and MGmc. Specifically, rostral STG projects to the caudal part of PM, to MGmc, and to the suprageniculate (SG) nucleus, whereas caudal STG projects to the rostral part of PM and to PL, PO, MGd, MGmc, SG-Li and MD nuclei. The root line areas in the circular sulcus of the Sylvian fissure project mainly to MGmc but also to MGd, PM, and SG-Li nuclei. These connections originate mainly from neurons in cortical layer VI, with some from layer Vb. It is suggested that these connections may be involved in different aspects of auditory information processing.
在恒河猴中研究了颞上区（STR）听觉区域的皮质丘脑连接。这些连接是根据最近描述的STR的构筑分区来组织的。颞上平面（STP）的核心线区域投射到内侧膝状体核（MGN）。除初级听觉区域外，所有区域也都有投射到其他丘脑核团。STP的嘴侧部分与MGN腹侧亚区（MGv）的尾侧部分以及内侧丘脑枕（PM）有强连接。相反，初级听觉区域主要投射到MGv的嘴侧部分。最尾侧的STP主要投射到背侧亚区（MGd）、大细胞亚区（MGmc）以及PM、外侧丘脑枕（PL）和嘴侧丘脑枕（PO）、界限核（Li）和背内侧核（MD）。颞上回（STG）的带线区域主要投射到丘脑枕，但也投射到MGd和MGmc。具体而言，STG的嘴侧部分投射到PM的尾侧部分、MGmc以及上膝状体（SG）核，而STG的尾侧部分投射到PM的嘴侧部分以及PL、PO、MGd、MGmc、SG-Li和MD核。外侧裂环沟中的根线区域主要投射到MGmc，但也投射到MGd、PM和SG-Li核。这些连接主要起源于皮质第VI层的神经元，部分起源于第Vb层。有人认为这些连接可能参与听觉信息处理的不同方面。
