Shiqi Fan1,2,3, Eduardo Blanco-Davis3, Jinfen Zhang1,2, Alan Bury3, Jonathan Warren3, Zaili Yang3, Xinping Yan1,2, Jin Wang3, Stephen Fairclough4. 1. Intelligent Transport Systems Research Centre, Wuhan University of Technology, Wuhan, China. 2. National Engineering Research Centre for Water Transport Safety (WTSC), MOST, Wuhan, China. 3. Liverpool Logistics, Offshore and Marine (LOOM) Research Institute, Liverpool John Moores University, Liverpool, UK. 4. School of Psychology, Liverpool John Moores University, Liverpool, UK.
Abstract
INTRODUCTION: Watchkeeping is a significant activity during maritime operations, and failures of sustained attention and decision-making can increase the likelihood of a collision. METHODS: A study was conducted in a ship bridge simulator where 40 participants (20 experienced/20 inexperienced) performed: (1) a 20-min period of sustained attention to locate a target vessel and (2) a 10-min period of decision-making/action selection to perform an evasive maneuver. Half of the participants also performed an additional task of verbally reporting the position of their vessel. Activation of the prefrontal cortex (PFC) was captured via a 15-channel functional near-infrared spectroscopy (fNIRS) montage, and measures of functional connectivity were calculated frontal using graph-theoretic measures. RESULTS: Neurovascular activation of right lateral area of the PFC decreased during sustained attention and increased during decision-making. The graph-theoretic analysis revealed that density declined during decision-making in comparison with the previous period of sustained attention, while local clustering declined during sustained attention and increased when participants prepared their evasive maneuver. A regression analysis revealed an association between network measures and behavioral outcomes, with respect to spotting the target vessel and making an evasive maneuver. CONCLUSIONS: The right lateral area of the PFC is sensitive to watchkeeping and decision-making during operational performance. Graph-theoretic measures allow us to quantify patterns of functional connectivity and were predictive of safety-critical performance.
INTRODUCTION: Watchkeeping is a significant activity during maritime operations, and failures of sustained attention and decision-making can increase the likelihood of a collision. METHODS: A study was conducted in a ship bridge simulator where 40 participants (20 experienced/20 inexperienced) performed: (1) a 20-min period of sustained attention to locate a target vessel and (2) a 10-min period of decision-making/action selection to perform an evasive maneuver. Half of the participants also performed an additional task of verbally reporting the position of their vessel. Activation of the prefrontal cortex (PFC) was captured via a 15-channel functional near-infrared spectroscopy (fNIRS) montage, and measures of functional connectivity were calculated frontal using graph-theoretic measures. RESULTS: Neurovascular activation of right lateral area of the PFC decreased during sustained attention and increased during decision-making. The graph-theoretic analysis revealed that density declined during decision-making in comparison with the previous period of sustained attention, while local clustering declined during sustained attention and increased when participants prepared their evasive maneuver. A regression analysis revealed an association between network measures and behavioral outcomes, with respect to spotting the target vessel and making an evasive maneuver. CONCLUSIONS: The right lateral area of the PFC is sensitive to watchkeeping and decision-making during operational performance. Graph-theoretic measures allow us to quantify patterns of functional connectivity and were predictive of safety-critical performance.
Authors: Hemel N Modi; Harsimrat Singh; Felipe Orihuela-Espina; Thanos Athanasiou; Francesca Fiorentino; Guang-Zhong Yang; Ara Darzi; Daniel R Leff Journal: Ann Surg Date: 2018-04 Impact factor: 12.969
Authors: Fangyuan Tian; Hongxia Li; Shuicheng Tian; Chenning Tian; Jiang Shao Journal: Int J Environ Res Public Health Date: 2022-01-03 Impact factor: 3.390
Authors: Fangyuan Tian; Hongxia Li; Shuicheng Tian; Jiang Shao; Chenning Tian Journal: Int J Environ Res Public Health Date: 2022-04-01 Impact factor: 3.390