Some recent evidence suggests that mental rotation of characters in children aged 7 or 8 years might be lateralized to the left parietal hemisphere. An alternative statement exists, however, the finding might be completely unspecific for mental rotation but either be simply a function of task difficulty or a consequence of the use of characters as…

Utilization of a footprint trail for locating a hidden person may indicate the extension of semiotics to the spatial domain of search. We sought to determine whether young children implemented footprint tracking, and found that at 3-years they successfully tracked footprints on only 3% of trials, at 4-years on 9% of trials, and at 5-years on 41%…

Investigated preschoolers' responses to ambiguous descriptions of location. Ambiguous ("in one of the bags") descriptions caused longer search latencies in four- and five-year olds than nonambiguous descriptions ("in the bag by the chair"). The reverse was true for three-year olds. Results suggest that changes in information…

Tested children with apparatus that dropped balls through clear or opaque interwoven tubes. Found that older children could solve configurations with greater number of tubes than younger children. Success with clear tubes did not transfer to opaque tubes. Significantly, errors were consistently directed to location directly below ball's last seen…