Research Reports - Saccadic impairment associated with remote history of mild traumatic brain injury
J Neuropsychiatry Clin Neurosci. 2016 Summer;28(3):223-31. doi:
10.1176/appi.neuropsych.15100243. Epub 2016 Mar 28.
Ettenhofer ML(1), Barry DM(1).
Evidence suggests that mild traumatic brain injury (TBI) is associated with
long-term changes in brain function, but conventional neurocognitive tools are
often insensitive to deficits after 90 days. Eye movements have been proposed as
a means to identify more chronic forms of impairment. In this study, saccadic,
manual, and conventional neuropsychological measures were compared between
participants with remote mild TBI and well-matched control participants. Saccadic
impairment was more frequent within the mild TBI group, and a history of multiple
injuries or high symptom burden appeared to compound this risk. However, other
neurocognitive measures did not differ by group, number of injuries, or symptom
severity. These results suggest that saccadic impairment may reflect chronic
effects of mild TBI that conventional measures are unable to detect.