Visuospatial perspective taking in people with Down syndrome.
Arielle Hershkovich, Daria Lasc, Lauren Grove and 2 others
PMID 37453151WHAT IT FOUND
People with Down syndrome matched typically developing children on visuospatial perspective taking when tested with a verbal task, but both groups struggled with a picture-choice task.
Assessment methods significantly alter observed ability, so choose tasks that reduce cognitive conflict.
Key findings
01Participants with Down syndrome and ability-matched typically developing children showed no significant difference in total scores on either the Dog Task or the Three Mountains Task.
02Performance was significantly better on the Dog Task (verbalizing perspective) than the Three Mountains Task (choosing pictures), with more participants performing above chance on the Dog Task.
03Both groups made significantly more egocentric errors on the Three Mountains Task than on the Dog Task, suggesting the picture-choice format imposes higher cognitive demands.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTsWhat it means for SLPs
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What it does not show
The study moved from in-person to online testing midway through due to COVID-19, though statistical analysis found no significant difference between modalities. Verbal abilities and working memory, which likely influence task performance, were not directly measured or controlled for. The correlation between the two perspective taking tasks was not significant, possibly due to the low overall performance on the Three Mountains Task. The sample was relatively homogeneous regarding socioeconomic status and race/ethnicity, limiting generalizability.
Declared interests
No conflicts of interest or funding sources were declared in the provided text.
The easy way to misread this
Do not conclude that people with Down syndrome have impaired visuospatial perspective taking relative to their cognitive level. The impairment appeared only in the more cognitively demanding picture-choice task, while performance on the verbal task was comparable to ability-matched peers.