Development and organization of multimodal representation in cat superior colliculus.
Development and organization of multimodal representation in cat superior colliculus.
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猫上丘多模态表征的发展和组织。
DOI：
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发表时间：
1978
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通讯作者：
Steiner Be
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文献类型：
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作者：
Steiner Be
本文研究了猫上丘（SC）中视觉细胞和非视觉细胞在发育和组织上的相似性。试图将这些发展和组织特征与SC在定向行为中所起的作用联系起来。在幼猫中，视觉引导的行为几乎不存在，需要许多周的时间来发展。同样，小猫的SC细胞在出生后至少7天才会对视觉刺激产生反应，只有在几周后，SC细胞的行为才会像成人一样。然而，与视觉细胞的发育相反，一些对躯体刺激有反应的神经元在出生当天就存在于SC中，而对声音刺激有反应的细胞在出生几天后出现。因此，猫SC中模态表征出现的顺序与使用不同感官线索进行定向的发育年表相似。这些数据表明，视觉、躯体和听觉表征的功能角色可能是相似的。体细胞表征在SC中的组织与视觉表征相似，并且与视觉表征一致，这一发现与这种可能性一致。这表明SC可以利用来自各种模式的线索来促进适当的定向行为。
The present paper examines developmental and organizational parallels between visual and nonvisual cells in the cat superior colliculus (SC). An attempt is made to relate these developmental and organizational features to the role the SC plays in orientation behavior. In young kittens visually guided behavior is virtually nonexistent and requires many weeks to develop. Similarly, kitten SC cells are unresponsive to visual stimuli until at least 7 days after birth, and it is only after many weeks that SC cells behave as do those of the adult. In contrast to the development of visual cells, however, some neurons responsive to somatic stimuli are present in the SC on the day of birth, and cells responsive to acoustic stimuli appear several days later. Thus, the sequence in which modality represenstation appears in the cat SC parallels the developmental chronology of the use of different sensory cues for orientation. These data indicate that the functional roles of the visual, somatic, and acoustic representations may be similar. The finding that the organization of the somatic representation in the SC is similar to, and in register with, the visual representation is consistent with this possibility. It is suggested that the SC can utilize cues from a variety of modalities in order to facilitate appropriate orientation behavior.