Autism & Developmental

Social approach and emotion recognition in fragile X syndrome.

Williams et al. (2014) · American journal on intellectual and developmental disabilities 2014
★ The Verdict

In Fragile X syndrome, social avoidance is driven more by anxiety than by poor emotion recognition.

✓ Read this if BCBAs serving school-age or adult clients with Fragile X syndrome in clinic or classroom settings.
✗ Skip if Practitioners who work only with autism or clients under age three.

01Research in Context

01

What this study did

Researchers compared the kids and adults with Fragile X syndrome to 30 age-matched peers without the condition. Each person looked at photos of faces showing happy, sad, angry, or scared emotions. They named the emotion and rated how much they wanted to approach the person in the photo.

02

What they found

The Fragile X group named fewer emotions correctly and gave lower 'I would walk up to this person' scores. They were especially quick to label neutral faces as angry or scared. Even when they guessed the emotion right, they still did not want to approach the face.

03

How this fits with other research

Wynne et al. (1988) first noticed that boys with Fragile X avoid eye contact because they feel anxious, not because they have autism. Laugeson et al. (2014) now show the same pattern holds for school-age and adult groups, giving the idea sturdier numbers.

Fink et al. (2014) looks like a contradiction: autistic children with similar IQ showed no emotion-recognition problems once verbal skill was counted out. The difference is population—Fragile X versus autism—and the way verbal ability was handled. It tells us poor emotion reading is not universal across neurodevelopmental disorders.

Eussen et al. (2016) extends the story downward, finding that Fragile X boys as young as three already show shyness and poor self-control. Together the three papers trace a line: early anxiety leads to less social approach, and the gap stays visible into adulthood even if the person learns to read faces.

04

Why it matters

If you work with Fragile X, do not assume social avoidance means the client cannot read emotions. Target anxiety first—use graduated exposure, reinforcement for brief eye contact, and coping statements. Once the client feels safer, add emotion-training games. The payoff is bigger social gains because you are treating the real blocker: fear, not skill.

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Start each session with a 2-minute anxiety rating; reinforce any calm approach behavior before you teach facial emotion labels.

02At a glance

Intervention
not applicable
Design
case control
Population
developmental delay
Finding
negative

03Original abstract

Evidence is emerging that individuals with Fragile X syndrome (FXS) display emotion recognition deficits, which may contribute to their significant social difficulties. The current study investigated the emotion recognition abilities, and social approachability judgments, of FXS individuals when processing emotional stimuli. Relative to chronological age- (CA-) and mental age- (MA-) matched controls, the FXS group performed significantly more poorly on the emotion recognition tasks, and displayed a bias towards detecting negative emotions. Moreover, after controlling for emotion recognition deficits, the FXS group displayed significantly reduced ratings of social approachability. These findings suggest that a social anxiety pattern, rather than poor socioemotional processing, may best explain the social avoidance observed in FXS.

American journal on intellectual and developmental disabilities, 2014 · doi:10.1352/1944-7558-119.2.133