Zoe Mailloux, Marco Leão, Tracy Ann Becerra, Annie Baltazar Mori, Elisabeth Soechting, Susanne Smith Roley, Nicole Buss, Sharon A. Cermak; Modification of the Postrotary Nystagmus Test for Evaluating Young Children. Am J Occup Ther 2014;68(5):514-521. doi: 10.5014/ajot.2014.011031.
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This article explores the use of the postrotary nystagmus (PRN) test for children younger than current norms (children 4.0 yr–8.11 yr). In the first study, 37 children ages 4–9 yr were examined in the standard testing position and in an adult-held adapted position to determine whether holding a child affected the reflex. Because the position did not affect the reflex, in the second study, PRN in 44 children ages 2 mo–47 mo was compared with published normative mean raw scores for 44 children age 5 yr to determine whether norms for older children were applicable to younger children. No statistically significant differences were found between <4-yr-old and 5-yr-old children, suggesting that the PRN test can be used in infants and toddlers with valid comparison to current norms for 4-yr-olds on the Sensory Integration and Praxis Tests (4.0 yr–8.11 yr). Future research exploring the predictive value of this measure is warranted.
Is it feasible to implement the PRN test for children younger than age 4?
Will parents and children accept administration of the PRN test with children younger than age 4?
Will the duration of the PRN reflex for children younger than age 4 be different from that in normative data for children age 5?
The PRN test can be validly adapted with an adult holding the child for the purpose of testing young children and older children who cannot maintain the required testing position independently.
The PRN test can be appropriately used with children younger than age 4 (with comparison with the current 4-yr norms) as part of other developmental and sensory integration evaluations.
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