[Short term memory and severe language disorders in the child]

Area of Science:

• Developmental Psychology
• Neuroscience
• Linguistics

Context:

• Short-term memory, or working memory, is crucial for language acquisition in children.
• Developmental dysphasia is a language disorder affecting children's ability to process and use language.
• Previous research has linked working memory to language development, but specific deficits in dysphasic children require further investigation.

Purpose:

• To investigate and compare short-term memory capabilities (verbal and non-verbal) in children with developmental dysphasia versus age and IQ-matched controls.
• To identify specific areas of cognitive function that may be impaired in children with developmental dysphasia.

Summary:

• The study compared 8 children with developmental dysphasia to a control group using verbal and non-verbal short-term memory tests.
• While digit span did not differ significantly, the dysphasic group exhibited a lower visuo-spatial span.
• Memorization of monosyllabic words was poorer for dysphasic children without visual presentation, but improved with it. Speech rate did not account for these differences.

Impact:

• Results suggest that children with language disorders like developmental dysphasia may have significant cognitive function impairments beyond those directly related to speech production.
• This highlights the importance of assessing broader cognitive functions, including visuo-spatial memory, in children with language impairments.
• Findings can inform targeted interventions and educational strategies for children with developmental dysphasia.