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https://www.readbyqxmd.com/read/28651095/the-influence-of-performance-on-action-effect-integration-in-sense-of-agency
#1
Wen Wen, Atsushi Yamashita, Hajime Asama
Sense of agency refers to the subjective feeling of being able to control an outcome through one's own actions or will. Prior studies have shown that both sensory processing (e.g., comparisons between sensory feedbacks and predictions basing on one's motor intentions) and high-level cognitive/constructive processes (e.g., inferences based on one's performance or the consequences of one's actions) contribute to judgments of sense of agency. However, it remains unclear how these two types of processes interact, which is important for clarifying the mechanisms underlying sense of agency...
June 23, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28650838/adaptive-neural-network-finite-time-output-feedback-control-of-quantized-nonlinear-systems
#2
Fang Wang, Bing Chen, Chong Lin, Jing Zhang, Xinzhu Meng
This paper addresses the finite-time tracking issue for nonlinear quantized systems with unmeasurable states. Compared with the existing researches, the finite-time quantized feedback control is considered for the first time. By proposing a new finite-time stability criterion and designing a state observer, a novel adaptive neural output-feedback control strategy is raised by backstepping technique. Under the presented control scheme, the finite-time quantized feedback control problem is coped with without limiting assumption for nonlinear functions...
June 26, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28650826/delayed-feedback-control-for-stabilization-of-boolean-control-networks-with-state-delay
#3
Rongjian Liu, Jianquan Lu, Yang Liu, Jinde Cao, Zheng-Guang Wu
In this brief, we study the delayed feedback stabilization problem for Boolean control networks (BCNs) with state delay. Using the semi-tensor product of matrices, some necessary and sufficient conditions are obtained. For the stabilization of BCNs, detailed procedure to construct the feedback controllers is also presented. We further derive the number of different feedback controllers, which can successfully stabilize the BCN in a finite time. Finally, an illustrative example is presented to show the effectiveness of our method...
June 22, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28649416/educational-intervention-to-reduce-disease-related-to-sub-optimal-basic-hygiene-in-rwanda-initial-evaluation-and-feasibility-study
#4
Margaret A Stone, Hormisdas Ndagijimana
BACKGROUND: Despite a global reduction in morbidity related to sub-optimal water, sanitation and hygiene, the incidence of such diseases remains a significant problem in sub-Saharan Africa. This study aimed to initially assess the potential effectiveness (primarily in terms of impact on morbidity) of a simple educational intervention delivered in Rwanda. Additionally, we sought to explore feasibility relating to the practicality of evaluating and implementing this type of intervention in a low- and middle-income country...
2018: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/28649197/a-minimal-model-describing-hexapedal-interlimb-coordination-the-tegotae-based-approach
#5
Dai Owaki, Masashi Goda, Sakiko Miyazawa, Akio Ishiguro
Insects exhibit adaptive and versatile locomotion despite their minimal neural computing. Such locomotor patterns are generated via coordination between leg movements, i.e., an interlimb coordination, which is largely controlled in a distributed manner by neural circuits located in thoracic ganglia. However, the mechanism responsible for the interlimb coordination still remains elusive. Understanding this mechanism will help us to elucidate the fundamental control principle of animals' agile locomotion and to realize robots with legs that are truly adaptive and could not be developed solely by conventional control theories...
2017: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/28649095/the-detection-of-hepatocellular-carcinoma-hcc-from-patients-breath-using-canine-scent-detection-proof-of-concept-study
#6
Taya Kitiyakara, Susan Redmond, Nattawut Unwanatham, Sasivimol Rattanasiri, Ammarin Thakkinstian, Pongsatorn Tangtawee, Somkit Mingphruedhi, Abhasnee Sobhonslidsuk, Pongphob Intaraprasong, Chomsri Kositchaiwat
Patients with hepatocellular carcinomas (HCC) have poor outcomes as a result of late detection of disease. We investigated the possibility of using smell detection by dogs for detecting HCC from breaths of patients. Patients' whose diagnosis of HCC was confirmed histologically or radiologically according to the American Association for the study of the Liver (AASLD) criteria had breaths collected using facemasks and transported to the study test site. One golden retriever was trained to detect HCC with positive feedback using known samples of HCC and healthy controls in a step-wise manner...
June 26, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28648411/visual-feedback-explains-why-propointing-is-better-than-antipointing-in-spatial-neglect
#7
Kathrin S Utz, Constanze Hesse, Annika Hintz, Daniela Grüneberger, Hartwig Kulke, Inga Roth, Thomas Klos, Vaclav Kromichal, Arthur Melms, Wilfried Schupp, Detlef Kohl, Thomas Schenk
Rossit et al. (2011) showed that neglect patients perform normally in a propointing task but not in an antipointing task which requires pointing towards the mirrored position of a target. It is assumed that antipointing relies on information from the perceptual pathway of our visual brain. Therefore, this finding supports the notion that neglect is a disorder that primarily affects perceptual spatial representations within the brain leaving spatial maps used for visuomotor guidance intact. Alternatively, performance of patients might be compromised in both tasks, but only obviously so in tasks in which online corrections are made more difficult...
May 25, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28645890/tailored-communication-within-mobile-apps-for-diabetes-self-management-a-systematic-review
#8
Heidi Holmen, Astrid Klopstad Wahl, Milada Cvancarova Småstuen, Lis Ribu
BACKGROUND: The prevalence of diabetes is increasing and with the requirements for self-management and risk of late complications, it remains a challenge for the individual and society. Patients can benefit from support from health care personnel in their self-management, and the traditional communication between patients and health care personnel is changing. Smartphones and apps offer a unique platform for communication, but apps with integrated health care personnel communication based on patient data are yet to be investigated to provide evidence of possible effects...
June 23, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28645603/robotic-transnasal-endoscopic-skull-base-surgery-systematic-review-of-the-literature-and-report-of-a-novel-prototype-for-a-hybrid-system-bear
#9
Andrea Bolzoni Villaret, Francesco Doglietto, Andrea Carobbio, Alberto Schreiber, Camilla Panni, Enrico Piantoni, Giovanni Guida, Marco Maria Fontanella, Piero Nicolai, Riccardo Cassinis
BACKGROUND: Although robotics has already been applied to several surgical fields, available systems are not designed for endoscopic skull base surgery (ESBS). New-conception prototypes have been recently described for ESBS. AIM OF THE STUDY: To provide a systematic literature review of robotics for ESBS and describe a novel prototype developed at the University of Brescia. MATERIAL AND METHODS: PubMed and Scopus databases were searched using a combination of terms, including Robotics OR Robot and Surgery OR Otolaryngology OR Skull Base OR Holder...
June 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28645602/clinical-application-of-insertion-force-sensor-system-for-coil-embolization-of-intracranial-aneurysms
#10
Noriaki Matsubara, Shigeru Miyachi, Takashi Izumi, Hiroyuki Yamada, Naoki Marui, Keisuke Ota, Hayato Tajima, Kazunori Shintai, Masashi Ito, Tasuku Imai, Masahiro Nishihori, Toshihiko Wakabayashi
INTRODUCTION: In endovascular embolization for intracranial aneurysms, it is important to properly control the coil insertion force. However, the force can only be subjectively detected by the subtle feedback experienced by the neurointerventionists at their fingertips. The authors envisioned a system that would objectively sense and quantify that force. In this article, coil insertion force was measured in cases of intracranial aneurysm using this sensor, and its actual clinical application was investigated...
June 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28644896/how-fast-is-a-collective-bacterial-state-established
#11
Mikkel Lindstrøm Sørensen, Peter Dahl, Thomas Sams
Bacteria in a biofilm colony have the capacity to monitor the size and growth conditions for the colony and modify their phenotypical behaviour to optimise attacks, defence, migration, etc. The quorum sensing systems controlling this involve production and sensing of diffusive signal molecules. Frequently, quorum sensing systems carry a positive feedback loop which produces a switch at a threshold size of the colony. This all-or-none switch can be beneficial to create a sudden attack, leaving a host little time to establish a defence...
2017: PloS One
https://www.readbyqxmd.com/read/28644768/error-feedback-frequency-affects-automaticity-but-not-accuracy-and-consistency-after-extensive-motor-skill-practice
#12
Daniel Krause, Manfred Agethen, Christina Zobe
Earlier studies addressed the effects of feedback frequency on movement accuracy and consistency. The authors additionally addressed the effects on motor automatization. High error feedback frequencies may induce attentional control processes and impede motor automatization. In a pre-post design, 42 participants were assigned to 2 groups with different feedback frequencies and practiced an arm movement sequence with 760 trials in 5 sessions. The 100% group practiced with feedback on 3 movement reversals of the sequence after each trial...
June 23, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/28643884/learning-climate-and-feedback-as-predictors-of-dental-students-self-determined-motivation-the-mediating-role-of-basic-psychological-needs-satisfaction
#13
C Orsini, V Binnie, S Wilson, M J Villegas
AIM: The aim of this study was to test the mediating role of the satisfaction of dental students' basic psychological needs of autonomy, competence and relatedness on the association between learning climate, feedback and student motivation. The latter was based on the self-determination theory's concepts of differentiation of autonomous motivation, controlled motivation and amotivation. METHODS: A cross-sectional correlational study was conducted where 924 students completed self-reported questionnaires measuring motivation, perception of the learning climate, feedback and basic psychological needs satisfaction...
June 23, 2017: European Journal of Dental Education: Official Journal of the Association for Dental Education in Europe
https://www.readbyqxmd.com/read/28643024/automatic-seed-picking-for-brachytherapy-postimplant-validation-with-3d-ct-images
#14
Guobin Zhang, Qiyuan Sun, Shan Jiang, Zhiyong Yang, Xiaodong Ma, Haisong Jiang
PURPOSE: Postimplant validation is an indispensable part in the brachytherapy technique. It provides the necessary feedback to ensure the quality of operation. The ability to pick implanted seed relates directly to the accuracy of validation. To address it, an automatic approach is proposed for picking implanted brachytherapy seeds in 3D CT images. METHODS: In order to pick seed configuration (location and orientation) efficiently, the approach starts with the segmentation of seed from CT images using a thresholding filter which based on gray-level histogram...
June 22, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28642703/different-regulation-of-interleukin-1-production-and-activity-in-monocytes-and-macrophages-innate-memory-as-an-endogenous-mechanism-of-il-1-inhibition
#15
Mariusz P Madej, Elfi Töpfer, Diana Boraschi, Paola Italiani
Production and activity of interleukin (IL)-1β are kept under strict control in our body, because of its powerful inflammation-promoting capacity. Control of IL-1β production and activity allows IL-1 to exert its defensive activities without causing extensive tissue damage. Monocytes are the major producers of IL-1β during inflammation, but they are also able to produce significant amounts of IL-1 inhibitors such as IL-1Ra and the soluble form of the decoy receptor IL-1R2, in an auto-regulatory feedback loop...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28642166/frontal-alpha-oscillations-and-attentional-control-a-virtual-reality-neurofeedback-study
#16
Anna M Berger, Eddy J Davelaar
Two competing views about alpha oscillations suggest that cortical alpha reflect either cortical inactivity or cortical processing efficiency. We investigate the role of alpha oscillations in attentional control, as measured with a Stroop task. We use neurofeedback to train 22 participants to increase their level of alpha amplitude. Based on the conflict/control loop theory, we selected to train prefrontal alpha and focus on the Gratton effect as an index of deployment of attentional control. We expected an increase or a decrease in the Gratton effect with increase in neural learning depending on whether frontal alpha oscillations reflect cortical idling or enhanced processing efficiency, respectively...
June 19, 2017: Neuroscience
https://www.readbyqxmd.com/read/28642150/inter-limb-transfer-of-kinematic-adaptation-in-individuals-with-motor-difficulties
#17
Jin Bo, Chi-Mei Lee
A previous study suggested that adults with greater motor difficulties demonstrated less adaptation under a regular error feedback schedule (gain=1:1) but reached a similar level of adaptation compared to controls when feedback was enhanced (gain=1:2). In light of these findings, the present study examined inter-limb transfer after adults adapted to visuomotor distortions with their dominant hand on either regular or enhanced feedback schedules. Results revealed that successful transfer related to the magnitude of adaptation with their dominant hand regardless of the individuals' motor abilities on the regular feedback schedule...
June 19, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28641235/computer-aided-training-sensorimotor-cortex-functions-in-humans-before-the-upper-limb-transplantation-using-virtual-reality-and-sensory-feedback
#18
Marek Kurzynski, Anna Jaskolska, Jaroslaw Marusiak, Andrzej Wolczowski, Przemyslaw Bierut, Lukasz Szumowski, Jerzy Witkowski, Katarzyna Kisiel-Sajewicz
One of the biggest problems of upper limb transplantation is lack of certainty as to whether a patient will be able to control voluntary movements of transplanted hands. Based on findings of the recent research on brain cortex plasticity, a premise can be drawn that mental training supported with visual and sensory feedback can cause structural and functional reorganization of the sensorimotor cortex, which leads to recovery of function associated with the control of movements performed by the upper limbs. In this study, authors - based on the above observations - propose the computer-aided training (CAT) system, which generating visual and sensory stimuli, should enhance the effectiveness of mental training applied to humans before upper limb transplantation...
June 15, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28641061/positive-parenting-as-responsible-care-risks-protective-factors-and-intervention-evaluation
#19
Silvia Donato, Anna Bertoni
In this themed issue of the Journal of Prevention & Intervention in the Community, the first four contributions provide knowledge on factors that can support or hinder positive parenting throughout children's lives. In particular, the first article examined the spillover of work stressors on parenting behaviors and the role of spousal support as a moderator of stress spillover. The second contribution examines the association between parents' promotion of volitional functioning and adopted children's sense of strength of family bonds and belonging to the adoptive family...
July 2017: Journal of Prevention & Intervention in the Community
https://www.readbyqxmd.com/read/28641054/behavioural-interventions-to-reduce-nickel-exposure-in-a-nickel-processing-plant
#20
Krassi Rumchev, Helen Brown, Amanda Wheeler, Gavin Pereira, Jeff Spickett
Nickel is a widely used material in many industries. Although, there is enough evidence that occupational exposure to nickel may cause respiratory illnesses, allergies and even cancer, it is not possible to stop the use of nickel in occupational settings. Nickel exposure, however, can be controlled and reduced significantly in workplaces. The main objective of this study was to assess if educational intervention of hygiene behaviour could reduce nickel exposure among Indonesian nickel smelter workers. Participants were randomly assigned to three intervention groups (n = 99)...
June 22, 2017: Journal of Occupational and Environmental Hygiene
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