Is sensory processing an issue for infants with colic?

Objectives: To determine the association between sensory functioning, sleep, cry/fuss, and feeding behaviors of infants with colic younger than 4 months of age. Methods: Dunn's Infant/Toddler Sensory Profile (TM) and a modified Barr Baby Day Diary(C) were used to assess 44 breastfed infants with colic under four months of age. Colic was defined according to Wessel's criteria. Results: Thirty-four of the 44 infants with colic (77%) scored as atypical for sensory processing. Of these, 56% scored atypical for sensory processing on quadrant one (Q1) (Low Registration), with 24%, 65%, and 18% scoring as atypical for sensory processing on Q2 (Sensory seeking), Q3 (Sensory sensitivity), and Q4 (Sensation avoiding), respectively. All infants demonstrating sensation avoiding also scored as Low Threshold. A moderate statistically significant correlation was found between sensation seeking and time spent sleeping (r = 0.31; p = 0.04). No other statistically significant associations between infant behaviors and their sensory functioning were demonstrated. Overall, infants demonstrating atypical sensory responses (in any quadrant) slept significantly more than infants demonstrating typical sensory responses (mean difference = -67.8 min/day; 95% CI = -133.6 to -2.1; p = 0.04). Conclusion: Very limited associations between infant behaviors and sensory functioning were demonstrated, suggesting that sensory functioning may not be a significant factor in the multifactorial nature of infant colic. Further well-designed studies using validated tools for infants with colic are required to determine whether associations between infant behaviors and sensory functioning exist.