Type

Journal Article

Authors

Ian H Robertson
Simone Carton
Lina Aimola
Pauline Moloney
Fiadhnait M O'Keeffe
Mark A. Bellgrove
Paul M Dockree

Subjects

Psychiatry

Topics
time factors adult humans reaction time brain injuries physiology attention task performance and analysis glasgow coma scale female reproducibility of results physiopathology questionnaires inhibition psychology male case control studies sensitivity and specificity

Sustained attention in traumatic brain injury (TBI) and healthy controls: enhanced sensitivity with dual-task load. (2004)

Abstract Poor sustained attention or alertness is a common consequence of traumatic brain injury (TBI) and has a considerable impact on the recovery and adjustment of TBI patients. Here, we describe the development of a sensitive laboratory task in healthy subjects (Experiment 1) and its enhanced sensitivity to sustained attention errors in TBI patients (Experiment 2). The task involves withholding a key press to an infrequent no-go target embedded within a predictable sequence of numbers (primary goal) and detecting grey-coloured targets within the sequence (secondary goal). In Experiment 1, we report that neurologically healthy subjects are more likely to experience a lapse of attention and neglect the primary task goal, despite ceiling performance on the secondary task. Further, attentional lapses on the task correlated with everyday attentional failures and variability of response time. In Experiment 2, the task discriminates between TBI patients and controls with a large effect size. The dual-task yields more errors in both groups than a simple task involving only the primary goal that is commonly used to detect sustained attention deficits in neurologically impaired groups. TBI patients' errors also correlated with everyday cognitive failures and variability of response time. This was not the case in the simple version of the task. We conclude that the dual-task demand associated with this task enhances its sensitivity as a measure of sustained attention in TBI patients and neurologically healthy controls that relates to everyday slips of attention.
Collections Ireland -> Trinity College Dublin -> PubMed

Full list of authors on original publication

Ian H Robertson, Simone Carton, Lina Aimola, Pauline Moloney, Fiadhnait M O'Keeffe, Mark A. Bellgrove, Paul M Dockree

Experts in our system

1
Ian H Robertson
Trinity College Dublin
Total Publications: 142
 
2
Simone Carton
Trinity College Dublin
Total Publications: 4
 
3
Fiadhnait M O'Keeffe
Trinity College Dublin
Total Publications: 7
 
4
Mark A. Bellgrove
Trinity College Dublin
Total Publications: 35
 
5
Paul M Dockree
Trinity College Dublin
Total Publications: 32