Abstract
Sensory over-responsivity (SOR), a subtype of sensory processing disorder (SPD), refers to the exaggerated behavioral response to sensory stimuli and affects children of all ages with and without neurodevelopmental disorders.1,2 SOR is more prevalent and severe among children with autism spectrum disorder (ASD) compared to typically developing children (TD) (effect-size 1.28 (95% CIs 1.11, 1.45) from a meta-analysis of 47 studies) and included in the diagnostic criteria of ASD.3-5 SOR in the gustatory domain, gustatory sensory over-responsivity (GOR), is expressed as avoidance and/or aversive response to gustatory stimuli.2 Food selectivity in the ASD population is associated with GOR and brings problematic mealtime behaviors, resulting in family distress in daily life.6,7 Despite this, there is a paucity of research focused on GOR compared to other SOR domains.
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