Visual tracking as an index of the object concept
Muller A, Aslin R. Visual tracking as an index of the object concept. Infant Behavior And Development 1978, 1: 309-319. DOI: 10.1016/s0163-6383(78)80041-1.Peer-Reviewed Original ResearchOccluder sizeMonths of ageAdequate control proceduresInfantsFrequency of disruptionsMeasures of knowledgeOccluderOcclusionAge