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Katrin Hanken, Mona Bosse, Kim Möhrke, Paul Eling, Andreas Kastrup, Andrea Antal, Helmut Hildebrandt
BACKGROUND: Fatigue in multiple sclerosis (MS) patients appears to correlate with vigilance decrement as reflected in an increase in reaction time (RT) and errors with prolonged time-on-task. OBJECTIVES: The aim of this study was to investigate whether anodal transcranial direct current stimulation (tDCS) over the right parietal or frontal cortex counteracts fatigue-associated vigilance decrement and subjective fatigue. METHODS: In study I, a randomized double-blind placebo-controlled study, anodal tDCS (1...
2016: Frontiers in Neurology
J Perrier, S Jongen, E Vuurman, M L Bocca, J G Ramaekers, A Vermeeren
The present study mainly aimed to assess whether and how sleepiness due to sleep deprivation interacts with Time on Task (ToT) effects both on electroencephalography (EEG) measures and driving performance in real driving conditions. Healthy participants performed a one hour on-the-road monotonous highway driving task while EEG was recorded continuously after one night of normal sleep and after one night of total sleep deprivation. The main outcome parameter in the highway driving test was the Standard Deviation of Lateral Position (SDLP)...
September 30, 2016: Biological Psychology
James R Head, Matthew S Tenan, Andrew J Tweedell, Thomas F Price, Michael E LaFiandra, William S Helton
Prior investigations have shown measurable performance impairments on continuous physical performance tasks when preceded by a cognitively fatiguing task. However, the effect of cognitive fatigue on bodyweight resistance training exercise task performance is unknown. In the current investigation 18 amateur athletes completed a full body exercise task preceded by either a cognitive fatiguing or control intervention. In a randomized repeated measure design, each participant completed the same exercise task preceded by a 52 min cognitively fatiguing intervention (vigilance) or control intervention (video)...
2016: Frontiers in Physiology
Michael W Boyce, Janan Al-Awar Smither, Daniel O Fisher, P A Hancock
We investigated how the design of instructions can affect performance in preparing emergency stair travel devices for the evacuation of disable individuals. We had three hypotheses: 1) Design of instructions would account for a significant portion of explained performance variance, 2) Improvements in design of instructions would reduce time on task across device type and age group, and 3) There would be a performance decrement for older adults compared to younger adults based on the slowing of older adult information processing abilities...
January 2017: Applied Ergonomics
E Furukawa, B Alsop, P Sowerby, S Jensen, G Tripp
BACKGROUND: The behavioral sensitivity of children with ADHD to punishment has received limited theoretical and experimental attention. This study evaluated the effects of punishment on the response allocation of children with ADHD and typically developing children. METHOD: Two hundred and ten children, 145 diagnosed with ADHD, completed an operant task in which they chose between playing two simultaneously available games. Reward was arranged symmetrically across the games under concurrent variable interval schedules...
September 9, 2016: Journal of Child Psychology and Psychiatry, and Allied Disciplines
Qinghua Wang, Shabbir S Abdul, Lara Almeida, Sophia Ananiadou, Yalbi I Balderas-Martínez, Riza Batista-Navarro, David Campos, Lucy Chilton, Hui-Jou Chou, Gabriela Contreras, Laurel Cooper, Hong-Jie Dai, Barbra Ferrell, Juliane Fluck, Socorro Gama-Castro, Nancy George, Georgios Gkoutos, Afroza K Irin, Lars J Jensen, Silvia Jimenez, Toni R Jue, Ingrid Keseler, Sumit Madan, Sérgio Matos, Peter McQuilton, Marija Milacic, Matthew Mort, Jeyakumar Natarajan, Evangelos Pafilis, Emiliano Pereira, Shruti Rao, Fabio Rinaldi, Karen Rothfels, David Salgado, Raquel M Silva, Onkar Singh, Raymund Stefancsik, Chu-Hsien Su, Suresh Subramani, Hamsa D Tadepally, Loukia Tsaprouni, Nicole Vasilevsky, Xiaodong Wang, Andrew Chatr-Aryamontri, Stanley J F Laulederkind, Sherri Matis-Mitchell, Johanna McEntyre, Sandra Orchard, Sangya Pundir, Raul Rodriguez-Esteban, Kimberly Van Auken, Zhiyong Lu, Mary Schaeffer, Cathy H Wu, Lynette Hirschman, Cecilia N Arighi
Fully automated text mining (TM) systems promote efficient literature searching, retrieval, and review but are not sufficient to produce ready-to-consume curated documents. These systems are not meant to replace biocurators, but instead to assist them in one or more literature curation steps. To do so, the user interface is an important aspect that needs to be considered for tool adoption. The BioCreative Interactive task (IAT) is a track designed for exploring user-system interactions, promoting development of useful TM tools, and providing a communication channel between the biocuration and the TM communities...
2016: Database: the Journal of Biological Databases and Curation
(no author information available yet)
Reports an error in "Shifts in attention during mental fatigue: Evidence from subjective, behavioral, physiological, and eye-tracking data" by Jesper F. Hopstaken, Dimitri van der Linden, Arnold B. Bakker, Michiel A. J. Kompier and Yik Kiu Leung (, 2016[Jun], Vol 42[6], 878-889). In the article, there were formatting errors in columns 1 through 8 of Table 2. The correct table is present in the erratum. (The following abstract of the original article appeared in record .) There is an increasing amount of evidence that during mental fatigue, shifts in motivation drive performance rather than reductions in finite mental energy...
September 2016: Journal of Experimental Psychology. Human Perception and Performance
Ida Emilia Aasen, Asta Kristine Håberg, Alexander Olsen, Ann-Mari Brubakk, Kari Anne I Evensen, Anne Elisabeth Sølsnes, Jon Skranes, Jan Ferenc Brunner
OBJECTIVE: To investigate attention and task-set adaptation in a preterm born very low birth weight (PT/VLBW) population by means of event-related potential components from an adapted cued go/no-go task. METHODS: P3 components after target and non-target cues, as well as target, no-go and non-target imperative stimuli were compared in 30 PT/VLBW young adults and 33 term-born controls. Changes in P3 amplitudes as a function of time-on-task were also investigated...
October 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
A van der Gijp, C J Ravesloot, H Jarodzka, M F van der Schaaf, I C van der Schaaf, J P J van Schaik, Th J Ten Cate
Eye tracking research has been conducted for decades to gain understanding of visual diagnosis such as in radiology. For educational purposes, it is important to identify visual search patterns that are related to high perceptual performance and to identify effective teaching strategies. This review of eye-tracking literature in the radiology domain aims to identify visual search patterns associated with high perceptual performance. Databases PubMed, EMBASE, ERIC, PsycINFO, Scopus and Web of Science were searched using 'visual perception' OR 'eye tracking' AND 'radiology' and synonyms...
July 19, 2016: Advances in Health Sciences Education: Theory and Practice
Susan Pauly-O'Neill, Elizabeth Cooper, Susan Prion
With the six QSEN competencies woven throughout the baccalaureate nursing curriculum, which includes high-fidelity simulation, the aim of this research was to uncover deficits in QSEN-related clinical opportunities. Pre-licensure BSN nursing students enrolled in a sophomore-level medical-surgical rotation augmented with 25 percent simulation were observed directly, with time-on-task for each QSEN competency recorded and tabulated. The students were found to spend little time addressing several of the six competency areas in both clinical and simulation settings...
May 2016: Nursing Education Perspectives
Junhua Li, Julian Lim, Yu Chen, Kianfoong Wong, Nitish Thakor, Anastasios Bezerianos, Yu Sun
Numerous efforts have been devoted to revealing neurophysiological mechanisms of mental fatigue, aiming to find an effective way to reduce the undesirable fatigue-related outcomes. Until recently, mental fatigue is thought to be related to functional dysconnectivity among brain regions. However, the topological representation of brain functional connectivity altered by mental fatigue is only beginning to be revealed. In the current study, we applied a graph theoretical approach to analyse such topological alterations in the lower alpha band (8~10 Hz) of EEG data from 20 subjects undergoing a two-session experiment, in which one session includes four successive blocks with visual oddball tasks (session 1) whereas a mid-task break was introduced in the middle of four task blocks in the other session (session 2)...
2016: Frontiers in Human Neuroscience
James R Head, Matthew S Tenan, Andrew Tweedell, Thomas T Price, Michael LaFiandra, Deak Helton
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
Devon A Grant, Kimberly A Honn, Matthew E Layton, Samantha M Riedy, Hans P A Van Dongen
The psychomotor vigilance test (PVT) is widely used to measure reduced alertness due to sleep loss. Here, two newly developed, 3-min versions of the psychomotor vigilance test, one smartphone-based and the other tablet-based, were validated against a conventional 10-min laptop-based PVT. Sixteen healthy participants (ages 22-40; seven males, nine females) completed a laboratory study, which included a practice and a baseline day, a 38-h total sleep deprivation (TSD) period, and a recovery day, during which they performed the three different versions of the PVT every 3 h...
June 20, 2016: Behavior Research Methods
Lauren A Grieco, Esbelle M Jowers, Vanessa L Errisuriz, John B Bartholomew
BACKGROUND: Physically active academic lessons are an effective intervention to reduce sedentary time and increase student physical activity. They have also been shown to enhance task engagement, as indicated by observations of attention and behavior control, time on task (TOT). However, it is not clear if the improved TOT stems from the physical activity or if it is the result of an enjoyable break from traditional instruction. If it is due to physical activity, what dose of intensity is required for the effect? This study was designed to test these questions...
August 2016: Preventive Medicine
Dennis Gmehlin, Anselm B M Fuermaier, Stephan Walther, Lara Tucha, Janneke Koerts, Klaus W Lange, Oliver Tucha, Matthias Weisbrod, Steffen Aschenbrenner
Adults with attention deficit hyperactivity disorder (ADHD) show attentional dysfunction such as distractibility and mind-wandering, especially in lengthy tasks. However, fundamentals of dysfunction are ambiguous and relationships of neuropsychological test parameters with self-report measures of ADHD symptoms are marginal. We hypothesize that basic deficits in sustaining attention explain more complex attentional dysfunction in persons with ADHD and relate to ADHD symptoms. Attentional function was analyzed by computing ex-Gaussian parameters for 3 time Blocks in a 20 min test of sustained alertness...
June 2016: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
Sian Taylor-Phillips, Matthew G Wallis, David Jenkinson, Victor Adekanmbi, Helen Parsons, Janet Dunn, Nigel Stallard, Ala Szczepura, Simon Gates, Olive Kearins, Alison Duncan, Sue Hudson, Aileen Clarke
IMPORTANCE: Interpreting screening mammograms is a difficult repetitive task that can result in missed cancers and false-positive recalls. In the United Kingdom, 2 film readers independently evaluate each mammogram to search for signs of cancer and examine digital mammograms in batches. However, a vigilance decrement (reduced detection rate with time on task) has been observed in similar settings. OBJECTIVE: To determine the effect of changing the order for the second film reader of batches of screening mammograms on rates of breast cancer detection...
May 10, 2016: JAMA: the Journal of the American Medical Association
James Allan Cheyne, Tanor Bonin, Caitlin Wright, Jonathan S A Carriere, James Danckert, Daniel Smilek
We describe a set of Tufnel problems that arise when repeated use of a fixed-point scale precipitates failures to assess a full range of subjective experiences. As empirical evidence, participants in Study 1 periodically reported their depth of mind wandering on either 5- or 7-point Likert scales during a sustained attention task. The proportion of participants providing maximum scale ratings increased quickly over time-on-task and did so more quickly for the 5-point than for the 7-point group. Participants in Study 2 completed the same task using a 10-point scale before indicating whether and where they could have used a scale extended to "11" during the task...
May 2016: Consciousness and Cognition
Chao Wang, Amy Trongnetrpunya, Immanuel Babu Henry Samuel, Mingzhou Ding, Benzi M Kluger
UNLABELLED: Prolonged continuous performance of a cognitively demanding task induces cognitive fatigue and is associated with a time-related deterioration of objective performance, the degree of which is referred to cognitive fatigability. Although the neural underpinnings of cognitive fatigue are poorly understood, prior studies report changes in neural activity consistent with deterioration of task-related networks over time. While compensatory brain activity is reported to maintain motor task performance in the face of motor fatigue and cognitive performance in the face of other stressors (e...
April 6, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
Julian Lim, James Teng, Kian Foong Wong, Michael W L Chee
Rest breaks are commonly administered as a countermeasure to reduce on-the-job fatigue, both physical and mental. However, this practice makes the assumption that recovery from fatigue, as measured by the reversal of performance declines, is the sole effect of taking a break on behavior. Here, through administering rest breaks of differing lengths in between blocks of a mentally demanding symbol decoding task, we show that this assumption may not be strictly true. First, we replicate previous work by showing that taking a longer break leads to two correlated effects: greater immediate rebound in performance, and greater subsequent time-on-task decline...
July 1, 2016: NeuroImage
Terry W McMahon, David G Newman
INTRODUCTION: Flying a helicopter is a complex psychomotor skill. Fatigue is a serious threat to operational safety, particularly for sustained helicopter operations involving high levels of cognitive information processing and sustained time on task. As part of ongoing research into this issue, the object of this study was to develop a field-deployable helicopter-specific psychomotor vigilance test (PVT) for the purpose of daily performance monitoring of pilots. METHODS: The PVT consists of a laptop computer, a hand-operated joystick, and a set of rudder pedals...
April 2016: Aerospace Medicine and Human Performance
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