Steele G E, Weller R E
Department of Psychology, University of Alabama, Birmingham.
Vis Neurosci. 1993 May-Jun;10(3):563-83. doi: 10.1017/s0952523800004776.
On the basis of cortical connections and architectonics, inferior temporal (IT) cortex of squirrel monkeys consists of a caudal, prestriate-recipient region, ITC; a rostral region, ITR; and possibly an intermediate region along the border of ITC and ITR, "ITI" (Weller & Steele, 1992). ITC contains dorsal (ITCd) and ventral (ITCV) areas. The subcortical connections of these subdivisions of IT cortex were determined in the present study from the results of cortical injections of wheat-germ agglutinin conjugated to horseradish peroxidase, [3H]-amino acids and fast blue. ITC and ITR receive afferents from the locus coeruleus, dorsal raphe, nucleus annularis, central superior nucleus, pontine reticular formation, lateral hypothalamus, paracentral nucleus, and central medial nucleus; send efferents to the superior colliculus, reticular nucleus, and striatum; and have both afferent and efferent connections with the pretectum, pulvinar, claustrum, amygdala, and basal nucleus of Meynert. ITC and ITR have different patterns of connections with a number of subcortical structures, including the pulvinar and amygdala. Injections in ITC strongly label multiple nuclei of the inferior pulvinar and the medial division of the lateral pulvinar (PLM), and moderately label the medial pulvinar (PM), whereas injections in ITR strongly label PM and moderately label PLM. Injections in ITC label sparse projections to the lateral nucleus of the amygdala, in contrast to injections in ITR that label strong projections to the lateral and basal nuclei of the amygdala. Injections in "ITI" produce a pattern of subcortical label that has some features of that observed from injections in ITC and that observed from injections in ITR. Although most of the connections of ITCd and ITCv appear similar, only injections involving ITCd label the middle nucleus of the inferior pulvinar (PIM). Comparison of the subcortical connections of subdivisions of IT cortex in squirrel monkeys and what is presently known of the subcortical connections of subdivisions of IT cortex in macaque monkeys supports the previous suggestion that ITC of squirrel monkeys may be comparable to area TEO of macaques, ITI may be comparable to posterior area TE, and ITR may be comparable to anterior area TE (Weller & Steele, 1992).
根据皮质连接和构筑学，松鼠猴的颞下（IT）皮质由一个尾侧的、接受纹前区传入的区域ITC；一个嘴侧区域ITR；以及可能位于ITC和ITR边界的中间区域“ITI”组成（韦勒和斯蒂尔，1992年）。ITC包含背侧（ITCd）和腹侧（ITCV）区域。在本研究中，通过向皮质注射与辣根过氧化物酶结合的小麦胚芽凝集素、[3H] -氨基酸和快蓝的结果，确定了IT皮质这些亚区的皮质下连接。ITC和ITR接受来自蓝斑、中缝背核、环状核、中央上核、脑桥网状结构、外侧下丘脑、中央旁核和中央内侧核的传入纤维；向顶盖、网状核和纹状体发出传出纤维；并与顶盖前区、丘脑枕、屏状核、杏仁核和迈内特基底核有传入和传出连接。ITC和ITR与许多皮质下结构，包括丘脑枕和杏仁核，有不同的连接模式。向ITC注射会强烈标记下丘脑枕的多个核和外侧丘脑枕的内侧部分（PLM），并中度标记内侧丘脑枕（PM），而向ITR注射会强烈标记PM并中度标记PLM。与向ITR注射会强烈标记杏仁核的外侧和基底核不同，向ITC注射会标记到杏仁核外侧核的稀疏投射。向“ITI”注射会产生一种皮质下标记模式，该模式具有一些在向ITC注射和向ITR注射中观察到的特征。尽管ITCd和ITCv的大多数连接看起来相似，但只有涉及ITCd的注射会标记下丘脑枕的中间核（PIM）。对松鼠猴IT皮质亚区的皮质下连接与目前已知的猕猴IT皮质亚区的皮质下连接进行比较，支持了先前的推测，即松鼠猴的ITC可能与猕猴的TEO区相当，ITI可能与后TE区相当，ITR可能与前TE区相当（韦勒和斯蒂尔，1992年）。
