10
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Functional connectivity analysis of distracted drivers based on the wavelet phase coherence of functional near-infrared spectroscopy signals

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          The present study aimed to evaluate the functional connectivity (FC) in relevant cortex areas during simulated driving with distraction based on functional near-infrared spectroscopy (fNIRS) method. Twelve subjects were recruited to perform three types of driving tasks, namely, straight driving, straight driving with secondary auditory task, and straight driving with secondary visual vigilance task, on a driving simulator. The wavelet amplitude (WA) and wavelet phase coherence (WPCO) of the fNIRS signals were calculated in six frequency intervals: I, 0.6–2 Hz; II, 0.145–0.6 Hz; III, 0.052–0.145 Hz; IV, 0.021–0.052 Hz; and V, 0.0095–0.021 Hz, VI, 0.005–0.0095Hz. Results showed that secondary tasks during driving led to worse driving performance, brain activity changes, and dynamic configuration of the connectivity. The significantly lower WA value in the right motor cortex in interval IV, and higher WPCO values in intervals II, V, and VI were found with additional auditory task. Significant standard deviation of speed and lower WA values in the left prefrontal cortex and right prefrontal cortex in interval VI, and lower WPCO values in intervals I, IV, V, and VI were found under the additional visual vigilance task. The results suggest that the changed FC levels in intervals IV, V, and VI were more likely to reflect the driver’s distraction condition. The present study provides new insights into the relationship between distracted driving behavior and brain activity. The method may be used for the evaluation of drivers’ attention level.

          Related collections

          Most cited references72

          • Record: found
          • Abstract: found
          • Article: not found

          Searching for a baseline: functional imaging and the resting human brain.

          Functional brain imaging in humans has revealed task-specific increases in brain activity that are associated with various mental activities. In the same studies, mysterious, task-independent decreases have also frequently been encountered, especially when the tasks of interest have been compared with a passive state, such as simple fixation or eyes closed. These decreases have raised the possibility that there might be a baseline or resting state of brain function involving a specific set of mental operations. We explore this possibility, including the manner in which we might define a baseline and the implications of such a baseline for our understanding of brain function.
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Structural and functional brain networks: from connections to cognition.

            How rich functionality emerges from the invariant structural architecture of the brain remains a major mystery in neuroscience. Recent applications of network theory and theoretical neuroscience to large-scale brain networks have started to dissolve this mystery. Network analyses suggest that hierarchical modular brain networks are particularly suited to facilitate local (segregated) neuronal operations and the global integration of segregated functions. Although functional networks are constrained by structural connections, context-sensitive integration during cognition tasks necessarily entails a divergence between structural and functional networks. This degenerate (many-to-one) function-structure mapping is crucial for understanding the nature of brain networks. The emergence of dynamic functional networks from static structural connections calls for a formal (computational) approach to neuronal information processing that may resolve this dialectic between structure and function.
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              A review on continuous wave functional near-infrared spectroscopy and imaging instrumentation and methodology.

              This year marks the 20th anniversary of functional near-infrared spectroscopy and imaging (fNIRS/fNIRI). As the vast majority of commercial instruments developed until now are based on continuous wave technology, the aim of this publication is to review the current state of instrumentation and methodology of continuous wave fNIRI. For this purpose we provide an overview of the commercially available instruments and address instrumental aspects such as light sources, detectors and sensor arrangements. Methodological aspects, algorithms to calculate the concentrations of oxy- and deoxyhemoglobin and approaches for data analysis are also reviewed. From the single-location measurements of the early years, instrumentation has progressed to imaging initially in two dimensions (topography) and then three (tomography). The methods of analysis have also changed tremendously, from the simple modified Beer-Lambert law to sophisticated image reconstruction and data analysis methods used today. Due to these advances, fNIRI has become a modality that is widely used in neuroscience research and several manufacturers provide commercial instrumentation. It seems likely that fNIRI will become a clinical tool in the foreseeable future, which will enable diagnosis in single subjects. Copyright © 2013 Elsevier Inc. All rights reserved.
                Bookmark

                Author and article information

                Contributors
                Role: ConceptualizationRole: Formal analysisRole: InvestigationRole: Writing – original draftRole: Writing – review & editing
                Role: Funding acquisitionRole: ResourcesRole: Validation
                Role: Project administrationRole: Supervision
                Role: Project administration
                Role: Data curationRole: Validation
                Role: ConceptualizationRole: Funding acquisitionRole: MethodologyRole: Writing – review & editing
                Role: InvestigationRole: Supervision
                Role: Editor
                Journal
                PLoS One
                PLoS ONE
                plos
                plosone
                PLoS ONE
                Public Library of Science (San Francisco, CA USA )
                1932-6203
                27 November 2017
                2017
                : 12
                : 11
                : e0188329
                Affiliations
                [1 ] Key Laboratory of High Efficiency and Clean Mechanical Manufacture, School of Mechanical Engineering, Shandong University, Jinan, P.R. China
                [2 ] Department of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong, SAR, P.R. China
                [3 ] Beijing Key Laboratory of Rehabilitation Technical Aids for Old-Age Disability, National Research Center for Rehabilitation Technical Aids, Beijing, P. R. China
                [4 ] Key Laboratory of Rehabilitation Aids Technology and System of the Ministry of Civil Affairs, Beijing, P. R. China
                National University of Defense Technology College of Mechatronic Engineering and Automation, CHINA
                Author notes

                Competing Interests: The authors have declared that no competing interests exist.

                Author information
                http://orcid.org/0000-0003-3519-2498
                Article
                PONE-D-17-29207
                10.1371/journal.pone.0188329
                5703451
                29176895
                eedb5452-25fe-4a63-bd54-97e81fc5215b
                © 2017 Xu et al

                This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                History
                : 6 August 2017
                : 3 November 2017
                Page count
                Figures: 10, Tables: 2, Pages: 22
                Funding
                Funded by: funder-id http://dx.doi.org/10.13039/501100001809, National Natural Science Foundation of China;
                Award ID: 11732015
                Award Recipient :
                Funded by: funder-id http://dx.doi.org/10.13039/501100001809, National Natural Science Foundation of China;
                Award ID: 31771071
                Award Recipient :
                Funded by: Fundamental Research Funds for Central Public Welfare Research Institutes
                Award ID: 118009001000160001
                Award Recipient :
                This project was supported by the National Natural Science Foundation of China (Grant No. 31771071, 11732015) and the Fundamental Research Funds for Central Public Welfare Research Institutes (118009001000160001).
                Categories
                Research Article
                Biology and Life Sciences
                Anatomy
                Brain
                Prefrontal Cortex
                Medicine and Health Sciences
                Anatomy
                Brain
                Prefrontal Cortex
                Biology and Life Sciences
                Neuroscience
                Cognitive Science
                Cognitive Psychology
                Attention
                Biology and Life Sciences
                Psychology
                Cognitive Psychology
                Attention
                Social Sciences
                Psychology
                Cognitive Psychology
                Attention
                Medicine and Health Sciences
                Vascular Medicine
                Blood Pressure
                Biology and Life Sciences
                Neuroscience
                Sensory Perception
                Vision
                Biology and Life Sciences
                Psychology
                Sensory Perception
                Vision
                Social Sciences
                Psychology
                Sensory Perception
                Vision
                Biology and Life Sciences
                Neuroscience
                Cognitive Science
                Biology and Life Sciences
                Neuroscience
                Cognitive Science
                Cognitive Psychology
                Attention
                Vigilance (Psychology)
                Biology and Life Sciences
                Psychology
                Cognitive Psychology
                Attention
                Vigilance (Psychology)
                Social Sciences
                Psychology
                Cognitive Psychology
                Attention
                Vigilance (Psychology)
                Research and Analysis Methods
                Imaging Techniques
                Neuroimaging
                Biology and Life Sciences
                Neuroscience
                Neuroimaging
                Biology and Life Sciences
                Anatomy
                Brain
                Motor Cortex
                Medicine and Health Sciences
                Anatomy
                Brain
                Motor Cortex
                Custom metadata
                All relevant data are within the paper and its Supporting Information files.

                Uncategorized
                Uncategorized

                Comments

                Comment on this article