Dipartimento di Psicologia dello Sviluppo e della Socializzazione, via Venezia 8, 35131 Padova, Italy.
Child Dev. 2009 Nov-Dec;80(6):1797-810. doi: 10.1111/j.1467-8624.2009.01368.x.
Five experiments examined 79 newborns' ability to discriminate and categorize a spatial relation, defined by the left-right spatial position of a blinking object-target with respect to a vertical landmark-bar. Three-day-old infants discriminated the up versus low position of an object located on the same side of the landmark-bar (Experiment 1) and recognized a basic left-right spatial invariance of the object-target and the landmark-bar in conditions of low (Experiment 2) and high (Experiment 3) perceptual variability of the object's positions. Additional evidence ruled out the possibility that newborns were unable to discriminate the within-category left-right spatial positions of the object-target (Experiment 4) or made a categorical distinction based on spatial distance rather than on categorical spatial relations of left of and right of (Experiment 5).
五个实验检验了 79 名新生儿辨别和分类空间关系的能力，这种关系由闪烁目标相对于垂直地标杆的左右空间位置定义。三天大的婴儿可以辨别位于地标杆同一侧的物体目标的上下位置（实验 1），并在物体位置的低（实验 2）和高（实验 3）知觉可变性条件下，识别物体目标和地标杆的基本左右空间不变性。额外的证据排除了新生儿无法辨别物体目标的类别内左右空间位置（实验 4）或基于空间距离而不是左右类别空间关系进行分类的可能性（实验 5）。
