Effects of fatigue on attention and vigilance as measured with a modified attention network test
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RESEARCH ARTICLE
Effects of fatigue on attention and vigilance as measured with a modified attention network test Brett B. T. Feltmate1 · Austin J. Hurst2 · Raymond M. Klein1 Received: 12 January 2020 / Accepted: 11 August 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract As part of a larger study on the effects of fatigue on various attentional and behavioural measures, we had participants complete a modified version of Luna et al.’s (J Neurosci Methods 306:77–87, Luna et al., J Neurosci Methods 306:77–87, 2018) ANTI-Vea task (mANTI-Vea) at the beginning and end (pre/post) of each of two 8-h testing sessions. Between these administrations of the mANTI-Vea our participants spent ~ 6 h performing an intervening task. Our intent in this project was two-fold: first, to replicate the pattern of effects reported in Luna et al.’s original presentation of the ANTI-Vea; second, to assay the impact of fatigue on vigilance and attention by observing shifts in mANTI-Vea performance as a function of time on task and before versus after the intervening task. With time-on-task (the mANTI-Vea is divided into six sub-blocks) we observed that participants became increasingly conservative in their biases to respond towards infrequent targets, showed a decline in sensitivity, and lapsed in responding in the psychomotor vigilance task with greater frequency. In the pre/post comparison, we observed an increase in the proportion of lapses, but not in participants’ response biases. Attentional network scores were found to be somewhat insensitive to our fatigue manipulations; the effect of time-on-task was only significant for orienting scores on RT, and our pre/post comparison was only significant for RT derived executive functioning scores. Keywords Attention · Vigilance · Fatigue · Attention networks test · Human factors
Introduction During World War II it was observed that radar operators, despite being alert, well trained, and highly motivated, were missing signals indicating the presence of enemy ships during their extended watches (Hancock 2017). Through a concerted and ever-continuing effort beginning in the 1940s to understand the pathology of this performance decrement, we now know that fatigue impairs one’s ability to detect signals
Communicated by Carlo Alberto Marzi. Electronic supplementary material The online version of this article (https://doi.org/10.1007/s00221-020-05902-y) contains supplementary material, which is available to authorized users. * Brett B. T. Feltmate [email protected] 1
Department of Psychology and Neuroscience, Dalhousie University, Halifax, NS, Canada
Department of Psychology, University of Waterloo, Waterloo, ON, Canada
2
particularly when they are relatively rare and difficult-todiscriminate (Mackworth 1956). Much of this research has focused on the concept of ‘vigilance’, the capacity to concentrate one’s attention over prolonged periods of time performing a particular task and the related concept of “vigilance decrement” or the decline of perfor
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