When one hemisphere takes control: metacontrol in pigeons (Columba livia).
When one hemisphere takes control: metacontrol in pigeons (Columba livia).
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DOI：
10.1371/journal.pone.0005307
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发表时间：
2009
期刊：
影响因子：
3.7
通讯作者：
Güntürkün O
中科院分区：
文献类型：
--
作者：
Adam R;Güntürkün O
脊椎动物的大脑由两个半球组成，它们接收输入，计算和相互作用以形成统一的反应。两个半球的部分不同过程是如何整合成一个单一的输出的，这在很大程度上是未知的。在某些情况下，一个半球负责反应选择--这一过程被称为元控制。到目前为止，这种现象只在少数灵长类动物的研究中发现，大多数是在人类身上进行的。然而，元控制对于像鸟类这样的动物来说更重要，因为它们的眼睛位于侧面，交叉交叉，因为大脑半球的视觉输入是完全不同的。信鸽（Columba livia）的训练与颜色的歧视任务。每个半球都接受了不同颜色对的训练，因此有不同的体验。随后，用两个额外的刺激物对鸽子进行双眼检查，这两个刺激物将一个半球的阳性颜色与另一个半球的阴性颜色结合起来，忽略了连贯解决方案的可用性，并使鸽子面临冲突的情况。一些鸽子对两种刺激都有反应，这表明没有一个半球主导了整体的偏好。然而，有些鸟类主要对其中一种相互冲突的刺激做出反应，这表明它们的选择是基于左或右单眼学习的颜色对，这表明半球的元控制。我们可以第一次证明元控制是一种普遍存在于鸟类中的现象，因此原则上不需要胼胝体。我们的结果与人类的结果非常相似：单眼的表现高于双眼，动物表现出不同的半球优势模式。因此，元控制是一个动态的、广泛分布的过程，可能构成了所有具有两部分大脑的动物在两个半球绑定的行为选项之间进行选择的要求。
Vertebrate brains are composed of two hemispheres that receive input, compute, and interact to form a unified response. How the partially different processes of both hemispheres are integrated to create a single output is largely unknown. In some cases one hemisphere takes charge of the response selection – a process known as metacontrol. Thus far, this phenomenon has only been shown in a handful of studies with primates, mostly conducted in humans. Metacontrol, however, is even more relevant for animals like birds with laterally placed eyes and complete chiasmatic decussation since visual input to the hemispheres is largely different. Homing pigeons (Columba livia) were trained with a color discrimination task. Each hemisphere was trained with a different color pair and therefore had a different experience. Subsequently, the pigeons were binocularly examined with two additional stimuli that combined the positive color of one hemisphere with a negative color that had been shown to the other, omitting the availability of a coherent solution and confronting the pigeons with a conflicting situation. Some of the pigeons responded to both stimuli, indicating that none of the hemispheres dominated the overall preference. Some birds, however, responded primarily to one of the conflicting stimuli, showing that they based their choice on the left- or right-monocularly learned color pair, indicating hemispheric metacontrol. We could demonstrate for the first time that metacontrol is a widespread phenomenon that also exists in birds, and thus in principle requires no corpus callosum. Our results are closely similar to those in humans: monocular performance was higher than binocular one and animals displayed different modes of hemispheric dominance. Thus, metacontrol is a dynamic and widely distributed process that possibly constitutes a requirement for all animals with a bipartite brain to confront the problem of choosing between two hemisphere-bound behavioral options.
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DOI：
10.1037/0096-1523.15.4.711
发表时间：
1989-11-01
影响因子：
2.1
作者：
HELLIGE, JB;TAYLOR, AK;ENG, TL
通讯作者：
ENG, TL
影响因子：
2.4
作者：
HELLIGE, JB;MICHIMATA, C
通讯作者：
MICHIMATA, C
DOI：
10.1037/0097-7403.2.4.285
发表时间：
1976-01-01
期刊：
JOURNAL OF EXPERIMENTAL PSYCHOLOGY-ANIMAL BEHAVIORAL PROCESSES
影响因子：
--
作者：
HERRNSTEIN, RJ;LOVELAND, DH;CABLE, C
通讯作者：
CABLE, C
影响因子：
2.6
作者：
Weekes, NY;Carusi, D;Zaidel, E
通讯作者：
Zaidel, E
影响因子：
2.5
作者：
HELLIGE, JB;JONSSON, JE;MICHIMATA, C
通讯作者：
MICHIMATA, C