Sensory Processing Associated With Motor Skills

The Test of Sensory Functions in Infants (TSFI) is a standardized and reliable tool designed to evaluate the sensory development of infants aged 4-18 months. Consisting of 24 items, the TSFI measures reactions in five distinct subdomains: tactile deep pressure, visual-tactile integration, adaptive motor function, ocular motor function, and reactivity to vestibular stimulation [1]. A specific age-normalized score is generated for each subdomain, contributing to a total score determined by the sum of all subdomains. The total score ranges from 0 to 49, with higher scores indicating more typical sensory responsiveness and lower scores suggesting behaviors associated with sensory over-responsivity [2]. In this study, a physiotherapist administered the TSFI to assess the sensory development of infants.

The PDMS-2 is a widely employed and acknowledged assessment tool for evaluating a child's motor abilities. Its primary purpose is to distinguish and aid in identifying developmental delays in children aged 5 and below by comparing their performance against established norms [3]. The gross motor skills section includes 4 subtests: reflexes, stationary, locomotion, and object manipulation. Similarly, the fine motor skills segment consists of 2 subtests: grasping and visual-motor integration. Each item in the test is evaluated using a 3-point scoring system.