Evidence for language recoding in autistic, retarded and normal children: a re-examination

Area of Science:

• Developmental Psychology
• Cognitive Neuroscience
• Linguistics

Background:

• Earlier studies suggested language recoding deficits in autistic children.
• This study replicates and extends previous findings by Hermelin & O'Connor.

Purpose of the Study:

• To compare language recoding abilities in autistic, retarded, and normal children.
• To investigate verbal recall performance across different input types (random words, sentences, anomalous sentences).
• To examine the impact of memory span (low vs. high) on language processing in these groups.

Main Methods:

• A verbal recall task was administered to matched groups of children (autistic, retarded, normal).
• Participants recalled words from random lists, sentences, and anomalous sentences of varying lengths.
• Performance was scored based on the number of words recalled from each input type.

Main Results:

• Low span children recalled sentences better than random lists; normal children outperformed retarded and autistic children.
• Autistic children exhibited a recency effect in recall for both input types.
• High span autistic children showed no performance differences from controls, recalling sentences better than random lists.

Conclusions:

• Low span autistic children demonstrated recall deficiencies but utilized sentence structure effectively.
• High span autistic children's performance mirrored control groups, questioning generalizability of specific coding deficit claims.
• Further research is needed to substantiate claims of a specific coding deficit in autistic children.