Changes in multiple brain regions underlie species differences in a complex, congenital behavior
Changes in multiple brain regions underlie species differences in a complex, congenital behavior
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DOI：
10.1073/pnas.94.5.2001
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发表时间：
1997-03-04
影响因子：
11.1
通讯作者：
Balaban, E
中科院分区：
文献类型：
--
作者：
Balaban, E
在两个物种之间产生任何复杂的、先天行为差异的进化大脑修饰从未被识别，进化过程可能：(I)改变产生和/或协调复杂行为的不同运动组件的单一的“较高”大脑区域；(Ii)单独改变调节单个组件的精细运动控制的独立的“较低”大脑区域；或者(Iii)修改这两种类型的区域，本研究探索了在一个这样的行为中物种差异的大脑定位，鸡(Gallus Gallus Home Ticus)和日本鹌鹑(Coturnix Coturnix Japan Onica)的鸣叫行为差异的两个主要亚成分可以通过单独大脑区域的物种间移植独立转移，尽管这些成分，声音和花纹头部运动，以一种高度整合的方式一起发生，据我们所知，这是第一次实验证明，在一个复杂的行为中，物种差异是由大脑不同部分的不同细胞组的单独变化建立起来的，并且这些细胞组对单个行为组件具有独立的影响。
The evolutionary brain modifications that produce any complex, congenital behavioral difference between two species have never been identified, Evolutionary processes may (i) alter a single, ''higher'' brain area that generates and/or coordinates the diverse motor components of a complex act; (ii) separately change independent, ''lower'' brain areas that modulate the fine motor control of the individual components; or (iii) modify both types of areas, This study explores the brain localization of a species difference in one such behavior, the crowing of chickens (Gallus gallus domesticus) and Japanese quail (Coturnix coturnix japonica), Two major subcomponents of the behavioral difference can be independently transferred with interspecies transplantation of separate brain regions, despite the fact that these components, sound and patterned head movement, occur together in a highly integrated fashion, To our knowledge, this is the first experimental demonstration that species differences in a complex behavior are built up from separate changes to distinct cell groups in different parts of the brain and that these cell groups have independent effects on individual behavioral components.