Schmuckler Mark A, Jewell Derryn T
Department of Psychology, University of Toronto at Scarborough, Scarborough Ontario, Canada M1C 1A4.
Dev Psychobiol. 2007 May;49(4):387-98. doi: 10.1002/dev.20214.
Two experiments explored 5-month-old infants' recognition of self-movement in the context of imperfect contingencies between felt and seen movement. Previous work has shown that infants can discriminate a display of another child's movements from an on-line video display of their own movements, even when featural information is removed. These earlier findings were extended by demonstrating self versus other discrimination when the visual information for movement was an unrelated object (a fluorescent mobile) directly attached to the child's leg, thus producing imperfect spatial and temporal contingency information. In contrast, intermodal recognition failed when the mobile was indirectly attached to infants' legs, thus eliminating spatial contingencies altogether and further weakening temporal contingencies. Together, these studies reveal that even imperfect contingency information can drive intermodal perception, given appropriate levels of spatial and temporal contingency information.
两项实验探讨了5个月大婴儿在感觉运动与视觉运动之间不确定性情况下对自我运动的识别。先前的研究表明，即使移除了面部特征信息，婴儿仍能区分自己运动的在线视频展示与另一个孩子运动的展示。当运动的视觉信息是直接附着在孩子腿上的无关物体（一个荧光移动装置）时，通过展示自我与他人的辨别，这些早期发现得到了扩展，从而产生了不完美的空间和时间对应信息。相比之下，当移动装置间接附着在婴儿腿上时，跨通道识别失败，从而完全消除了空间对应关系，并进一步削弱了时间对应关系。总之，这些研究表明，在适当的空间和时间对应信息水平下，即使是不完美的对应信息也能驱动跨通道感知。
