Lognormality In Children With Mild Traumatic Brain Injury : A Preliminary Pilot Study

This preliminary pilot study examines whether the sigma-lognormal model proposed by the Kinematic Theory of rapid human movements is able to detect a difference between the handwriting strokes produced by individuals with mild traumatic brain injuries (mTBI) 1 and 3 months post-injury. 90 participants, aged between 6.00 and 17.99 years, who sustained mTBI were asked to produce handwriting strokes on a digitizing tablet. Strokes were analyzed using the Sigma-Lognormal model. This model showed significant differences between the two sets of strokes produced 1- and 3-months post-injury by the participants, with the quality of strokes improving over time. Only four participants did not show any significant changes. Findings from this preliminary pilot study warrant further research into the potential benefits of using the Sigma-Lognormal model to assess the integrity of neuromotor systems following pediatric mTBI.