“…Hernandez and et al, Zimmer and et al, Deli and et al, and Wang, J in various investigations have verified effectiveness of the following treatment plans: The effect of gross motor skills on the boy pupils' attention process with Down's syndrome, the influence of the sensory integration treatment on fine and gross motor skills in 5-7 year old children with Down's syndrome, efficacy of proprioceptive and simultaneous motivations over 6-7 year old children's dexterity with this syndrome, the influence of sensory integration method and training motorperception skills on motor problems of dyslexic children, the investigation of the influence of sensory stimulations and motor exercises on hand skills in mentally-retarded children, learning of gross motor activities in adolescents with Down's, the effectiveness of sensory integration treatment, the combination of sensory integration method with vestibular motivations (3,5,7,9,(12)(13)(14)(15)(16)(17)(18)(19). On the one hand Since the existence of processing problems and sensory integration in children with Down's syndrome and its influence on the motor development is an obvious matter; and on the other hand as therapists have access to effective treatment approaches for obviating these setbacks; the enough research in relation to the influence of this treatment method has not been done On children's motor development with Down's While the scrutiny of the usefulness of sensory stimulation remedy in different disorders needs numerous surveys.…”