Increased risk for age-related impairment in visual attention associated with mild traumatic brain injury: Evidence from saccadic response times

It was hypothesized that risk for age-related impairment in attention would be greater among those with remote history of mild TBI than individuals without history of head injury. Twenty-seven adults with remote history of mild TBI and a well-matched comparison group of 54 uninjured controls complet...

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Bibliographic Details
Published in:PloS one 2017-02, Vol.12 (2), p.e0171752-e0171752
Main Authors: Hershaw, Jamie N, Barry, David M, Ettenhofer, Mark L
Format: Article
Language:English
Subjects:
Adult
Adults
Age
Attention
Biology and Life Sciences
Brain
Brain Concussion - complications
Brain injuries
Cognitive ability
Cognitive Dysfunction - etiology
Cognitive Dysfunction - physiopathology
Complications and side effects
Development and progression
Disease age factors
Female
Follow-Up Studies
Head injuries
Humans
Impairment
Male
Medicine and Health Sciences
Middle Aged
Neuropsychological Tests
Observations
Older people
People and Places
Reaction Time
Risk
Risk factors
Saccades
Saccadic eye movements
Sensitivity enhancement
Social Sciences
Studies
Traumatic brain injury
Vision disorders
Vision Disorders - etiology
Vision Disorders - physiopathology
Visual perception
Young Adult
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Summary:It was hypothesized that risk for age-related impairment in attention would be greater among those with remote history of mild TBI than individuals without history of head injury. Twenty-seven adults with remote history of mild TBI and a well-matched comparison group of 54 uninjured controls completed a computerized test of visual attention while saccadic and manual response times were recorded. Within the mild TBI group only, older age was associated with slower saccadic responses and poorer saccadic inhibition. Saccadic slowing was mitigated in situations where the timing and location of attention targets was fully predictable. Mild TBI was not associated with age-related increases in risk for neuropsychological impairment or neurobehavioral symptoms. These results provide preliminary evidence that risk for age-related impairment in visual attention may be higher among those with a history of mild TBI. Saccadic measures may provide enhanced sensitivity to this subtle form of cognitive impairment.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0171752