Developmental Emergence of Self-Referential and Inhibition Mechanisms of Body Movements Underling Felicitous Behaviors
Developmental Emergence of Self-Referential and Inhibition Mechanisms of Body Movements Underling Felicitous Behaviors
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DOI：
10.1037/a0021936
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发表时间：
2011-08-01
影响因子：
2.1
通讯作者：
Taga, Gentaro
中科院分区：
文献类型：
--
作者：
Watanabe, Hama;Homae, Fumitaka;Taga, Gentaro
在幼儿中，激活或抑制身体运动对环境事件的感知对于使他们能够对世界采取行动或理解世界是重要的。为了揭示这种能力的发展，我们观察了两种实验条件下四肢的运动模式。被分配到互动条件的婴儿提供了他们的手臂和玩具之间的连接，这允许关键手臂的运动产生在头顶上的移动的运动。被分配到刺激条件的婴儿被呈现由实验者模仿的玩具的类似运动。在3个月大的婴儿中，手臂运动在交互条件下增加，而在刺激条件下减少。在2个月大的婴儿中没有观察到这种条件依赖性行为分离。这些结果表明，不同的行为的“观察者”的环境事件的“玩家”与周围的2和3个月的年龄之间的相互作用是不同的。行为分化的出现表明，在皮层-皮层下网络的知觉-运动和注意/评价系统中，自我参照和抑制机制正在发展。
In young infants, activation or inhibition of body movements on perception of environmental events is important to enable them to act on the world or understand the world. To reveal the development of this ability, we observed movement patterns in all four limbs under the two experimental conditions. Infants assigned to the interaction condition were provided a connection between their arm and a toy, which allowed movements of the critical arm to produce movements in the overhead mobile. Infants assigned to the stimulation condition were presented with similar movements of the toy emulated by the experimenter. In 3-month-old infants, the arm movements increased under the interaction condition, whereas they decreased under the stimulation condition. Such condition-dependent behavior dissociation was not observed in 2-month-old infants. These results suggest that the distinct behavior of an "observer" of environmental events was differentiated from that of a "player" interacting with the surroundings between 2 and 3 months of age. The emergence of differentiation of behaviors points toward the development of self-referential and inhibition mechanisms in the perceptual-motor and attention/evaluation system in the cortico-subcortical network.