Behavioural and physiological impairments of sustained attention after traumatic brain injury

Dockree, Paul M.; Kelly, Simon P.; Roche, Richard; Hogan, Michael; Reilly, Richard B.; Robertson, Ian H.

doi:10.1016/j.cogbrainres.2004.03.019

Cited by 139 publications

(55 citation statements)

References 33 publications

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“…The performance of the two groups appeared to reflect this instructional set, as they differed significantly in terms of accuracy but not in speed. The lower accuracy of the survivors indicates a deficit in the ability to maintain vigilant attention over time and confirms that head -injury survivors are impaired in their capacity to sustain attention (Dockree et al, 2004;Mathias et al, 2004;Salmond et al, 2005;Whyte et al, 1995). Our results further demonstrate that the attentional impairment is observed in the auditory as well as the visual modality.…”

Section: Commentsupporting

confidence: 85%

Closed head injury-related information processing deficits: An event-related potential analysis

Duncan

Kosmidis

Mirsky

2005

International Journal of Psychophysiology

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Section: Commentsupporting

confidence: 85%

Closed head injury-related information processing deficits: An event-related potential analysis

Duncan

Kosmidis

Mirsky

2005

International Journal of Psychophysiology

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“…In line with previous studies, 12,37,47 we argue that the higher prevalence of commission responses in DAI patients is associated with transient ''drifts'' of controlled processing toward a more automated mode of responding. As frontal, prefrontal and cingulate hypoperfusion and damage to subcortical structures are the most common consequence of diffuse axonal damage in TBI patients, 7,16 it seems reasonable that the neural substrate involved during the execution of the C-CPT may have been disrupted, along with other areas, as a result of brain injury.…”

Section: Eeg Discussionsupporting

confidence: 78%

Combined Behavioral and EEG Power Analysis in DAI Improve Accuracy in the Assessment of Sustained Attention Deficit

et al. 2008

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In clinical routine, the evaluation of sustained attention is often performed by analyzing the behavioral data collected during specific tests. Such analyses are rarely accompanied by a detailed examination of the subject's simultaneous electroencephalographic (EEG) activity, and particularly its frequency content. In this study, a group of healthy volunteers and a group of patients affected by diffuse axonal injury (DAI) were tested while performing a modified version of the Conners' continuous performance test. A comparative study was carried out between the behavioral and neuropsychological data obtained during the task, to investigate neural activation. Spectral power was calculated for each of the recorded EEG signals, taking account of the frequency bands traditionally considered in literature. Then a compressed spectral array sequence of spectra was plotted to put into evidence the temporal modifications in the signal power spectral density, and, finally, the analysis of the rhythm variability was carried out. Evaluation of the results thus obtained shows that the two groups registered very different cerebral activation dynamics during the ongoing attentional task. Moreover, DAI patients showed mild cortical activation in the prefrontal region, spread equally throughout both brain hemispheres, while controls showed strong predominant activation of the right prefrontal area. Our findings encourage further investigations of the combined employment of tests and EEG recordings during the clinical assessment of sustained attention performance.

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“…This design was chosen to promote the rapid routinization of the sensorimotor response over time. In support of the model it was found that RT in target trials prior to inhibition failures is decreased compared to successful inhibitions, indicating that failures to maintain attention are preceded by periods of increased routinization (Dockree et al, 2004;Manly et al, 1999; but see Dockree, Kelly, Robertson, Reilly & Foxe, 2005). Further, participants who reported to commit more absent-minded errors in everyday life also made more errors in the SART (Manly et al, 1999;Robertson et al, 1997).…”

Section: Introductionmentioning

confidence: 69%

Energetic effects of stimulus intensity on prolonged simple reaction-time performance

Langner

Willmes

Chatterjee

et al. 2010

Psychological Research

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The efficiency of cognition is modulated by energetic factors like effort, fatigue or circadian variation, which affect even the most basic cognitive operations. For instance, speeded detection in simple reaction-time (SRT) tasks usually slows down over time. The literature suggests that either mindlessness due to routinization or mental fatigue due to attentional resource depletion might underlie this decrement. We tested these assumptions in three 25-min visual SRT tasks using easy-to-detect high-intensity and hard-to-detect low-intensity stimuli presented in both blocked and mixed fashion. Mindlessness theory predicts that less monotonous stimulation (i.e. the mixed presentation) would mitigate the time-related decrement for high- and low-intensity stimuli alike, whereas resource-depletion theory predicts opposite effects of mixed presentation on high- versus low-intensity stimuli. Indeed, stimulus intensity and presentation mode cross-interacted significantly, indicating that the performance decline was steeper for high-intensity stimuli but less steep for low-intensity stimuli during mixed compared to blocked presentation, respectively. These results strongly suggest that the time-related efficiency decrement during prolonged SRT performance is related to accumulating mental fatigue. A conjecture is put forward that explains both resource depletion and mindlessness from the perspective of self-regulation. Our study underscores the need to incorporate energetic factors into models of cognition to facilitate their translation into real-world applications.

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Behavioural and physiological impairments of sustained attention after traumatic brain injury

Cited by 139 publications

References 33 publications

Closed head injury-related information processing deficits: An event-related potential analysis

Closed head injury-related information processing deficits: An event-related potential analysis

Combined Behavioral and EEG Power Analysis in DAI Improve Accuracy in the Assessment of Sustained Attention Deficit

Energetic effects of stimulus intensity on prolonged simple reaction-time performance

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