Developmental Associations Between Working Memory and Language in Children With Specific Language Impairment: A...

Area of Science:

• Developmental psychology
• Neuroscience
• Linguistics

Background:

• Specific language impairment (SLI) affects language acquisition in children.
• Working memory (WM) plays a crucial role in cognitive development and language processing.
• Longitudinal studies are essential for understanding developmental trajectories.

Purpose of the Study:

• To compare working memory (WM) development in children with SLI versus typically developing (TD) children.
• To investigate the predictive relationship between early language/WM and later language skills.
• To identify specific WM components influencing language acquisition.

Main Methods:

• Longitudinal study design tracking children from ages 4-5 to 7-8 years.
• Assessment of multiple WM components (verbal storage, verbal central executive, visuospatial storage, visuospatial central executive).
• Statistical analysis including hierarchical regression to determine predictors of language development.

Main Results:

• Working memory (WM) development was largely similar between SLI and TD groups, with differences noted in verbal storage.
• Children with SLI initially showed lower performance across all WM components, but visuospatial differences diminished by age 7-8.
• Early language and verbal central executive (CE) skills at ages 4-5 significantly predicted language abilities at ages 7-8.

Conclusions:

• Verbal central executive (CE) skills are particularly important for acquiring language skills.
• The findings highlight the interconnectedness of WM and language development.
• Early identification and support of verbal CE may benefit children with SLI.