Dialogic linkage and resonance in autism.

Hobson et al. (2012) watched autistic and non-autistic kids talk with an adult. They counted how well each child kept the shared idea going.

The team looked for two things: 'frame grabs' (echoing the last word) and 'cognitive linkage' (adding a new but related idea).

Autistic kids could echo words just fine. They failed to build the next brick onto the conversational wall.

Typical kids chained ideas together. Autistic kids often dropped the chain or changed the topic.

Rojahn et al. (1994) saw the same weakness earlier. They called it 'fewer cohesive links.' Peter’s team gave it a new name, 'poor cognitive linkage,' but the picture matches.

Plant et al. (2007) filmed the same kids and found flatter faces and less back-and-forth nodding. Together the studies show the gap is both verbal and non-verbal.

Baum (1989) helps explain why some kids echo. When receptive language is low, kids grab the last word like a life raft. Echo is possible; linkage is not.

Do not be fooled by immediate echolalia. If a child repeats you, check if he can add the next relevant thought. Use visual supports, sentence stems, or 'add-on' games to teach the chaining skill. Target linkage, not just echo reduction.