Social Anxiety in Neurodevelopmental Disorders: The Case of Fragile X Syndrome.

Crawford (2023) read every paper on social anxiety in Fragile X. She stitched them into one story. The review asked: why are these kids so tense around people?

She built a five-part map. The map shows roads from body to mind: sensory overload, emotion meltdowns, rigid thinking, social-cognition glitches, and biology.

No single road causes the fear. Kids with Fragile X often hear lights buzz and tags itch. That buzz hikes heart rate. A fast heart makes eye contact feel dangerous.

Once scared, they can’t shift plans. A new face means unknown rules. Unknown rules feel like threat. Threat turns into escape, arguing, or frozen staring.

Hall et al. (2006) saw the same escape ten years earlier. They watched boys sing and talk. Cortisol spiked, fidgeting grew, eye contact dropped. Hayley folds that biology into her bigger map.

Sullivan et al. (2007) gave parents a checklist: task refusal, long stares, repeating phrases. Those items now sit under Hayley’s emotion-dysregulation road. The behaviors are anxiety signals, not just non-compliance.

Hardiman et al. (2018) counted how often these behaviors happen. They found wide ranges. Hayley explains the spread: different kids travel different roads—some sensory, some cognitive, some both.

Stop treating social avoidance as one thing. Run a quick sensory scan first. Note tags, hums, or bright lights. Then test set-shifting: change the game rules and watch the reaction. Last, track escape topographies—stares, refusals, self-hug. Match your intervention to the road you see: ear defenders for buzz, priming for change, or reinforcement for approach. You will waste fewer trials and face fewer meltdowns.