The growing interest in researching and documenting young children's perspectives and experiences, has led to an increasing use of visual methods, such as photographs and videos. Studies to date, however, have seen artifacts as neutral tools, and have not revealed the differences between the functions of visual artifacts in the research process,…

Background: The relationship between the age of reaching infant developmental milestones and later intellectual function within the normal population remains unresolved. We hypothesised that the age of learning to stand in infancy would be associated with adult executive function and that the association would be apparent throughout the range of…