AMYGDALOFUGAL AND AMYGDALOPETAL CONNECTIONS WITH MODALITY-SPECIFIC VISUAL CORTICAL AREAS IN MACAQUES (MACACA-FUSCATA, M-MULATTA, AND MACACA-FASCICULARIS)
AMYGDALOFUGAL AND AMYGDALOPETAL CONNECTIONS WITH MODALITY-SPECIFIC VISUAL CORTICAL AREAS IN MACAQUES (MACACA-FUSCATA, M-MULATTA, AND MACACA-FASCICULARIS)
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DOI：
10.1002/cne.902610304
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发表时间：
1987-07-15
影响因子：
2.5
通讯作者：
YUKIE, M
中科院分区：
文献类型：
--
作者：
IWAI, E;YUKIE, M
本文研究了猕猴杏仁核与形态特异性视觉皮层区TEa（前TE区）、TEp（后TE区）、TEO、V4、V2、MST（内侧上级颞视觉区）、MT（中颞视觉区）和V1的联系的起源和终止。这些进行了比较与杏仁核连接的视觉相关的多感觉区TG通过皮质注射辣根过氧化物酶（HRP）和孵育的部分与四甲基联苯胺（TMB）作为色原。TEa和TEp区都受到外侧基底核的主要保护，受到杏仁复合体副基底核的次要保护，而这些区域向外侧核发送主要投射，向外侧基底核发送次要投射。TEO、V4、V2、MST、MT和V1区只接受来自外侧基底核的投射，它们都不投射到任何杏仁核。因此，离杏仁核的投射比杏仁核的投射更广泛，也更复杂。这些发现表明，杏仁核和视觉区之间的连接通常是非互惠的，并强调了从杏仁核到视觉皮层区的反馈机制在视觉信息处理中的重要性。杏仁核投射的分布和密度似乎有一个尾侧（枕颞）梯度，从V1区到TEa区，杏仁核投射逐渐变得更广泛和更重。杏仁核与TG区的联系明显不同于与视区的联系。TG区主要与杏仁核周围皮质相连，也与杏仁核外侧基底核、副基底核和内侧基底核相连。
The origins and terminations of the amygdaloid connections with the modality-specific visual cortical areas TEa (anterior TE area), TEp (posterior TE area), TEO, V4, V2, MST (medial superior temporal visual area), MT (middle temporal visual area), and V1 were studied in macaques. These were compared with the amygdaloid connections of a vision-related polysensory area TG by making cortical injections of horseradish peroxidase (HRP) and incubating the sections with tetramethylbenzidine (TMB) as the chromogen. Both areas TEa and TEp receive a major protection from the lateral basal nucleus and a minor one from the accessory basal nucleus of the amygdaloid complex, whereas these areas send a major projection to the lateral nucleus and a minor one to the lateral basal nucleus. Areas TEO, V4, V2, MST, MT, and V1 receive projections only from the lateral basal nucleus; none of them project to any amygdaloid nucleus. Thus, the amygdalofugal projections are more widespread and more complex than the amygdalopetal projections. These findings indicate that the connections between the amygdaloid nuclei and the visual areas are generally nonreciprocal and underlie the importance of a feedback mechanism from the amygdala to the visual cortical areas in visual information processing. There appears to be a caudorostral (occipitotemporal) gradient in the distribution and density of the amygdaloid projections, which become progressively more widespread and heavier among the progressively more rostral visual areas (from area V1 to area TEa). The amygdaloid connections with area TG are distinctly different from the connections with the visual areas. Area TG is reciprocally connected mainly with the periamygdaloid cortex, and with the lateral, accessory basal, and medial basal nuclei of the amygdala as well.