Topographical Working Memory in Children with Cerebral Palsy

Area of Science:

• Neuroscience
• Developmental Psychology
• Rehabilitation Medicine

Background:

• Cerebral palsy (CP) affects motor skills and can impact cognitive functions, including spatial working memory.
• Understanding cognitive differences in children with CP is crucial for developing targeted interventions.
• Previous research has explored cognitive deficits in CP, but the role of mobility in spatial working memory requires further investigation.

Purpose of the Study:

• To compare topographic working memory and visuo-spatial abilities between children with cerebral palsy (CP) and typically developing (TD) children.
• To investigate the association between Gross Motor Function Classification System (GMFCS) levels and performance on different working memory tasks.
• To explore how the requirement of bodily movement in a task influences cognitive strategy use in children with CP.

Main Methods:

• Forty children with CP (categorized by GMFCS levels) and 120 TD children completed two tests: a topographic working memory test (WalCT) involving body movement and a visuo-spatial test (CBT) with reaching movements only.
• Performance was assessed by scores on the WalCT and CBT.
• Statistical analyses were used to compare scores between groups and across GMFCS levels.

Main Results:

• Children with CP in GMFCS levels II/III performed significantly better on the topographic working memory (WalCT) test compared to TD children.
• Children with CP in GMFCS level I performed lower on the visuo-spatial test (CBT) than those in GMFCS levels III/IV, and all CP groups scored lower than TD children.
• Similar WalCT performance between GMFCS I and TD, and between GMFCS II and III/IV, suggests a strong link between mobility and topographic working memory.

Conclusions:

• Mobility is significantly associated with topographic working memory performance in children with CP.
• The absence of bodily movement in the CBT task may allow children with CP to employ different cognitive strategies.
• Interventions should focus on providing children with CP opportunities for active participation to improve spatial awareness and navigational skills.