The conceptual basis for morpheme learning problems in children with specific language impairment

Area of Science:

• Cognitive Psychology
• Developmental Psychology
• Linguistics

Background:

• Children with specific language impairment (SLI) often exhibit difficulties with language rule learning.
• It remains unclear if these difficulties extend to non-linguistic cognitive domains.

Purpose of the Study:

• To investigate whether rule-learning deficits in children with SLI are specific to language or indicative of broader cognitive impairments.
• To compare the performance of children with SLI and typically developing children on a non-linguistic conceptual rule-learning task.

Main Methods:

• A non-linguistic conceptual rule-learning task was administered to 20 children with SLI and 20 typically developing children.
• Two instructional conditions were used: imitation and modeling.
• Performance was assessed based on overall learning and condition-specific effects.

Main Results:

• No significant difference in overall learning was observed between children with SLI and typically developing children.
• Children with SLI did not show a unique advantage in the imitation condition compared to the modeling condition, unlike in previous linguistic tasks.
• Performance differences between conditions were not specific to the SLI group.

Conclusions:

• The findings suggest that difficulties in learning and accessing language rules in children with SLI are specific to the linguistic domain.
• These results do not support the hypothesis of a general cognitive deficiency in rule induction for children with SLI.
• The study reinforces the idea that SLI is primarily a language-specific disorder.