Kochukhova, O., & Gredebäck, G. (2007) Learning about Occlusion, Initial Assumptions and Rapid Adjustments. Cognition, 105, 26-46.

We examined 6-month-olds abilities to represent occluded objects, using a corneal-reflec- tion eye-tracking technique. Experiment 1 compared infants’ ability to extrapolate the current pre-occlusion trajectory with their ability to base predictions on recent experiences of novel object motions. In the first condition infants performed at asymptote (􏱅2/3 accurate predic- tions) from the first occlusion passage. In the second condition all infants initially failed to make accurate prediction. Performance, however, reached asymptote after two occlusion pas- sages. This is the first study that demonstrates such rapid learning effects during an occlusion task. Experiment 2 replicates these effects and demonstrates a robust memory effect extending 24 h. In occlusion tasks such long-term memory effects have previously only been observed in 14-month-olds (Moore & Meltzoff, 2004).