Questionnaire-assessed atypical sensory sensitivity is prospectively related to higher ARFID psychopathology, higher food neophobia, and lower satisfaction with food-related life in an online sample of Chinese older adults

Altered sensory processing is common in older adults, and avoidant/restrictive food intake disorder (ARFID) psychopathology and food neophobia contribute to adverse health outcomes in older adults. Yet, the relationships, particularly longitudinal relationships, between sensory processing, ARFID psychopathology, and food neophobia, as well as their associations with satisfaction with food-related life (SWFL), remain unexplored in older adults. A sample of Chinese older adults (N = 202; 45 % men; M_age = 59.35 years) completed an online survey at baseline (T1) and 12 months later (T2); atypical sensory sensitivity, ARFID psychopathology, food neophobia, and SWFL were measured with self-report questionnaires. Cross-lagged and mediation regression analyses were conducted to examine the prospective associations between T1 atypical sensory sensitivity and T2 ARFID psychopathology, food neophobia, and SWFL. The results revealed that higher T1 atypical sensory sensitivity predicted higher T2 ARFID psychopathology and food neophobia and lower SWFL. The results also showed that the relationship between T1 atypical sensory sensitivity and T2 SWFL was mediated by T2 picky eating and food neophobia. These findings suggest that atypical sensory sensitivity may be a risk factor for ARFID psychopathology, food neophobia, and poor SWFL in older adults. Future studies with larger samples and experimental designs are needed to further explore the mechanisms linking atypical sensory sensitivity and ARFID psychopathology, food neophobia, and SWFL in older adults.