Search Results
Results 1 - 50 of 946
1 2 3 4 5 6 7 8 9 10 >
De Stefani Elisa E Department of Neuroscience, University of Parma, Via Volturno 39, 43100, Parma, - - 2014
The present experiment aimed at verifying whether the spatial alignment effect modifies kinematic parameters of pantomimed reaching-grasping of cups located at reachable and not reachable distance. The cup's handle could be oriented either to the right or to the left, thus inducing a grasp movement that could be either congruent ...
Dijker Anton J M AJ Faculty of Health, Medicine and Life Sciences, Maastricht University, CAPHRI, 6200 MD, Maastricht, The Netherlands, - - 2014
The size-weight illusion (SWI) refers to the phenomenon that objects that are objectively equal in weight but different in size or volume are perceived to differ in weight, such that smaller objects feel heavier than larger ones. This article reviews studies trying to support three different viewpoints with respect to ...
Cochet Hélène H a Laboratory "Cognition, Communication and Development" (Octogone - ECCD, EA 4156) University of Toulouse II , Department of Psychology , Toulouse , - - 2014
ABSTRACT. The authors used frame-by-frame video analyses to describe the features of imperative and declarative pointing gestures produced by young children, in comparison to reaching actions. First, the results showed that imperative pointing shared common features with reaching actions (hand shape, arm extension), but body posture observed in reaching differed ...
Zhou Zhen Z a Human Factors Research Unit, Institute of Sound and Vibration Research , University of Southampton , Southampton , - - 2014
The dependence of biodynamic responses of the seated human body on the frequency, magnitude and waveform of vertical vibration has been studied in 20 males and 20 females. With sinusoidal vibration (13 frequencies from 1 to 16 Hz) at five magnitudes (0.1-1.6 ms(- 2) r.m.s.) and with random vibration (1-16 Hz) at the same ...
Buckingham Gavin G Department of Psychology, School of Life Sciences, Heriot-Watt University, Edinburgh, UK, - - 2014
Weight illusions-where one object feels heavier than an identically weighted counterpart-have been the focus of many recent scientific investigations. The most famous of these illusions is the 'size-weight illusion', where a small object feels heavier than an identically weighted, but otherwise similar-looking, larger object. There are, however, a variety of ...
Thielemans Valerie V Department of Kinesiology, KU Leuven, - - 2014
It has been suggested that angular momentum in the horizontal plane during human gait is controlled (i.e., kept minimal). However, this has not been explored in conditions when angular momentum of different segments is manipulated explicitly. In order to examine the behavior of angular momentum, 12 participants walked in 17 ...
Singh Ravindra Pratrap - - 2014
This experimental study investigated the effect of lifting task parameters (i.e., lifting weight, frequency, coupling, asymmetric angle, and vertical, horizontal, and travel distances) for various dynamic human lifting activities on the ground reaction forces of workers. Ten male workers loaded containers from different levels asymmetrically during experimental trials. The experimental ...
Olanrewaju H A HA USDA, Agricultural Research Service, Poultry Research Unit, PO Box 5367, Mississippi State - - 2014
The effects of genetic strain, light intensity, and their interaction were examined on blood physiological variables of broilers maintained in environmentally controlled rooms in each of 5 trials. The study consisted of a 2 × 5 factorial arranged in a randomized complete block design with 10 treatments of 2 strains ...
Emami Seyede Faranak - - 2014
The daf is a large Persian frame drum used as a musical instrument in both popular and classical music which can induce a percussive sound at low frequencies (146-290 Hz) with peaks of up to 130 dBspl. The percussive sounds have a power distribution in the region of saccular sensitivity. ...
Jerin Claudia C Department of Otorhinolaryngology Head and Neck Surgery, German Center for Vertigo and Balance Disorders, University of Munich, Grosshadern Medical Centre, Marchioninistr. 15, 81377, Munich, Germany, - - 2014
Ocular vestibular evoked myogenic potentials (oVEMPs) represent extraocular muscle activity in response to vestibular stimulation. We sought to investigate whether oVEMPs are modulated by increasing intracranial pressure (ICP). Air-conducted oVEMPs were elicited in 20 healthy subjects lying supine on a tilt table. In order to elevate the ICP, the table ...
Chen Yi-Chou YC School of Kinesiology, University of Minnesota, Minneapolis, MN, - - 2014
Athletic head trauma (both concussive and sub-concussive) is common among adolescents. Head trauma often is followed by motion sickness-like symptoms, by changes in cognitive performance, and by changes in standing body sway. We evaluated adolescent female boxers who did and did not report motion sickness after a bout (i.e., a ...
Mensink Senja H G SH Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, P.O. Box 9101, 6500 HB, Nijmegen, The - - 2014
Freezing of gait is an episodic gait disorder, characterized by the inability to generate effective forward stepping movements. The pathophysiology underlying freezing of gait remains insufficiently understood, and this hampers the development of better treatment strategies. Preliminary evidence suggests that impaired force control during walking may contribute to freezing episodes, ...
Braithwaite Jason J - - 2014
We present the first study to examine indicators of autonomic arousal associated with shifts in body image and as a function of predisposition to report spontaneous anomalous bodily experiences (ABEs) from nonclinical samples. Participants completed the Temporal-Lobe Experience subscale of the Cardiff Anomalous Perception scale-a measure associated with anomalous experiences ...
Barlow Heidi H Discipline of Exercise and Sport Science, The University of Sydney, - - 2014
The introduction of the OMEGA OSB11 starting blocks (Swiss Timing, Corgémont, Switzerland) which feature an adjustable inclined plate built into the rear of the platform, have led to the evolution of the "kick start" style of swimming start. Previous studies examining the effect of different starting positions using the OSB11 ...
Savela Janne J Department of Information Technology, University of Turku, FI-20014 Turku, - - 2014
This study explores the perceptual vowel space of the Finnish and German languages, which have a similar vowel system with eight vowels, /ɑ/ /e/ /i/ /o/ /u/ /y/ /æ∼ε/ /ø/. Three different prototypicality measures are used for describing the internal structuring of the vowel categories in terms of the F1 ...
Padulo Johnny J a Tunisian Research Laboratory "Sports Performance Optimization" , National Center of Medicine and Science in Sport , Tunis , - - 2014
Abstract The aim of this study was to investigate the effects of a single bout of whole-body vibration (WBV) on running gait. The running kinematic of sixteen male marathon runners was assessed on a treadmill at iso-efficiency speed after 10 min of WBV and SHAM (i.e. no WBV) conditions. A ...
Kawamori Naoki N a School of Exercise, Biomedical and Health Sciences , Edith Cowan University , Joondalup , - - 2014
Abstract Athletes use weighted sled towing to improve sprint ability, but little is known about its biomechanics. The purpose of this study was to investigate the effect of weighted sled towing with two different loads on ground reaction force. Ten physically active men (mean ± SD: age 27.9 ± 1.9 years; stature 1.76 ± 0.06 m; body ...
Choi Ahnryul - - 2014
When the human body is introduced to a new motion or movement, it learns the placement of different body parts, sequential muscle control, and coordination between muscles to achieve necessary positions, and it hones this new skill over time and repetition. Previous studies have demonstrated definite differences in the smoothness ...
Silverman Anne K AK Department of Mechanical Engineering, Colorado School of Mines, Golden, CO 80401, USA. Electronic address: - - 2014
The generation of whole-body angular momentum is essential in many locomotor tasks and must be regulated in order to maintain dynamic balance. However, angular momentum has not been investigated during stair walking, which is an activity that presents a biomechanical challenge for balance-impaired populations. We investigated three-dimensional whole-body angular momentum ...
Hobbs Sarah Jane SJ Centre for Applied Sport end Exercise Sciences, University of Central Lancashire, Preston, Lancs, UK. Electronic address: - - 2014
The diagonal limb support pattern at trot provides pitch and roll stability, but little is known about the control of moments about the centre of mass (COM) in horses. Correct COM location is critical in the calculation of pitching moments. The objectives were to determine the effect of COM location ...
Panzica M M Department of Trauma Surgery and Orthopaedic Surgery, Hannover Medical School, Carl-Neuberg Str. 1, 30625, Hannover, Germany, - - 2014
Successful outcome after total knee arthroplasty (TKA) requires precise realignment of the mechanical axis. The intraoperative assessment of the mechanical axis is difficult. Intraoperatively, the effect of weight bearing on the lower limb mechanical axis is ignored. We developed a custom-made mechanical loading device to simulate weight-bearing conditions intraoperatively and ...
Moreau-Debord Ian I Université de - - 2014
To contribute appropriately to voluntary reaching during body motion, vestibular signals must be transformed from a head- to a body-centered reference frame. We quantitatively investigated the evidence for this transformation during online reach execution by using galvanic vestibular stimulation (GVS) to simulate rotation about a head-fixed, roughly naso-occipital axis as ...
Swinnen Eva E Faculty of Physical Education and Physiotherapy, Rehabilitation Research (RERE), Vrije Universiteit Brussel , Brussels , Belgium - - 2014
Abstract Purpose: The goal was to assess in healthy participants the three-dimensional kinematics of the pelvis and the trunk during robot-assisted treadmill walking (RATW) at 0%, 30% and 50% body weight support (BWS), compared with treadmill walking (TW). Methods: 18 healthy participants walked (2 kmph) on a treadmill with and without ...
Cottle Casey C Department of Exercise and Sports Performance, University of New England, Biddeford, - - 2014
Sled towing is a popular method of sprint training. Researchers have struggled to identify a loading scheme that is most appropriate to improve sprint performance in the acceleration phase. The purpose of this study was to determine if loads of 10% body weight (BWT) or 20% BWT produced significantly greater ...
Saunders Nathan W NW a Department of Health, Athletic Training, Recreation, & Kinesiology , Longwood University , Farmville , - - 2014
Abstract Researchers and clinicians have suggested that overuse injuries to the lower back and lower extremities of figure skaters may be associated with the repeated high impact forces sustained during jump landings. Our primary aim was to compare the vertical ground reaction forces (GRFs) in freestyle figure skaters (n = 26) and ...
O'Toole Alice J AJ The University of Texas at Dallas, USA. Electronic address: - - 2014
The neural organization of person processing relies on brain regions functionally selective for faces or bodies, with a subset of these regions preferring moving stimuli. Although the response properties of the individual areas are well established, less is known about the neural response to a whole person in a natural ...
Green Amber N AN Department of Movement Sciences, University of Idaho, 875 Perimeter Drive, MS 2401, Moscow, ID, 83844-2401, - - 2014
To investigate the associations among objectively measured sedentary behavior, light physical activity, and markers of cardiometabolic health in young women. Cardiovascular disease risk factors, homeostasis model assessment for insulin resistance (HOMA-IR), lipid accumulation product, and inflammatory markers were measured in 50 young, adult women. Accelerometers were worn over 7 days to ...
Oberfeld Daniel D Department of Psychology, Section Experimental Psychology, Johannes Gutenberg-Universität, 55099, Mainz, Germany, - - 2014
Auditory stream segregation is an important paradigm in the study of auditory scene analysis. Performance-based measures of auditory stream segregation have received increasing use as a complement to subjective reports of streaming. For example, the sensitivity in discriminating a temporal shift imposed on one B tone in an ABA sequence ...
Ferrè Elisa Raffaella ER Institute of Cognitive Neuroscience, University College London, London, United - - 2014
Vestibular signals are strongly integrated with information from several other sensory modalities. For example, vestibular stimulation was reported to improve tactile detection. However, this improvement could reflect either a multimodal interaction or an indirect interaction driven by vestibular effects on spatial attention and orienting. Here we investigate whether natural vestibular ...
Cian C C Institut de Recherche Biomédicale des Armées (IRBA), 91223, Brétigny sur Orge, France, - - 2014
The aim of the present study was to investigate (1) the relative contribution of the egocentric reference as well as body orientation perception to visual horizon percept during tilt or during increased gravito-inertial acceleration (GiA, hypergravity environment) conditions and (2) the role of vestibular signals in the inter-individual differences observed ...
Theusner Stefanie S Institute for Psychology & Otto-Creutzfeldt-Center for Cognitive and Behavioral Neuroscience, University of Muenster, 48149 Münster, - - 2014
The visual recognition of action can be obtained from the change of body posture over time. Even for point-light stimuli in which the body posture is conveyed by only a few light points, biological motion can be perceived from posture sequence analysis. We present and analyze a formal model of ...
Avelar N C NC Healthy and Biological Science Faculty, Federal University of the Jequitinhonha and Mucuri Valleys (UFVJM), Diamantina, - - 2014
The objective of this study was to assess the acute effect of different intensities of whole body vibration (WBV) on muscle performance. 8 recreationally trained males were randomly subjected to one of 3 experimental conditions: (A) WBV 2 mm [45 Hz and 2 mm], (B) WBV 4 mm [45 Hz and 4 mm], and (C) no ...
Vangeneugden Joris J Center for Neuroscience and Cognitive Systems@UniTn, Istituto Italiano di Tecnologia, 38068 Rovereto, Italy, Center for Mind/Brain Sciences, University of Trento, 38068 Rovereto, Italy, Department of Brain and Cognitive Sciences, Center for Visual Science, and Department of Ophthalmology, University of Rochester, Rochester, New York 14627, and Berenson-Allen Center for Noninvasive Brain Stimulation, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts - - 2014
Actions can be understood based on form cues (e.g., static body posture) as well as motion cues (e.g., gait patterns). A fundamental debate centers on the question of whether the functional and neural mechanisms processing these two types of cues are dissociable. Here, using fMRI, psychophysics, and transcranial magnetic stimulation ...
Platkiewicz Jonathan J Université Pierre et Marie - - 2014
Two objects of similar visual aspects and of equal mass, but of different sizes, generally do not elicit the same percept of heaviness in humans. The larger object is consistently felt to be lighter than the smaller, an effect known as the `size-weight illusion'. When asked to repeatedly lift the ...
Nakamura Shuichi S Department of Applied Physics, Graduate School of Engineering, Tohoku University, Miyagi, Japan. Electronic address: - - 2014
Leptospira are spirochete bacteria distinguished by a short-pitch coiled body and intracellular flagella. Leptospira cells swim in liquid with an asymmetric morphology of the cell body; the anterior end has a long-pitch spiral shape (S-end) and the posterior end is hook-shaped (H-end). Although the S-end and the coiled cell body ...
Borel Liliane L Aix-Marseille Université, Marseille, France ; CNRS, UMR 7260 Laboratoire de Neurosciences Intégratives et Adaptatives, Marseille, - - 2014
The vestibular system is responsible for a wide range of postural and oculomotor functions and maintains an internal, updated representation of the position and movement of the head in space. In this study, we assessed whether unilateral vestibular loss affects external space representation. Patients with Menière's disease and healthy participants ...
Alain Claude C Rotman Research Institute, Baycrest Centre for Geriatric Care Toronto, ON, Canada ; Department of Psychology, University of Toronto Toronto, ON, Canada ; Institute of Medical Sciences, University of Toronto Toronto, ON, - - 2014
Aging is often accompanied by hearing loss, which impacts how sounds are processed and represented along the ascending auditory pathways and within the auditory cortices. Here, we assess the impact of mild binaural hearing loss on the older adults' ability to both process complex sounds embedded in noise and to ...
Winters Stephanie M SM Department of Otorhinolaryngology and Head and Neck Surgery, Rudolf Magnus Institute of Neuroscience, University Medical Center, Utrecht, The - - 2014
To test for otolith asymmetries, several studies described horizontal translation of the body and head en bloc during fast vertical axis rotation. This stimulus causes one otolithic organ to rotate on-axis, and the other to experience centripetal acceleration. To test a new, more simple method of unilateral stimulation with head ...
Gold Jason M JM Department of Psychological and Brain Sciences, Indiana University, Bloomington IN, - - 2014
Perception is often influenced by context. A well-known class of perceptual context effects is perceptual contrast illusions, in which proximate stimulus regions interact to alter the perception of various stimulus attributes, such as perceived brightness, color and size. Although the phenomenal reality of contrast effects is well documented, in many ...
Saunders Jeffrey A JA Department of Psychology, University of Hong Kong, Hong Kong, Hong Kong - - 2014
Direction of self-motion during walking is indicated by multiple cues, including optic flow, nonvisual sensory cues, and motor prediction. I measured the reliability of perceived heading from visual and nonvisual cues during walking, and whether cues are weighted in an optimal manner. I used a heading alignment task to measure ...
Lazaro Antonio A Department of Electronic, Electric and Automatic Control Engineering, Universitat Rovira i Virgili (URV), Av. Països Catalans 26, Campus Sescelades, Tarragona 43007, Spain. - - 2014
This paper focuses on the feasibility of tracking the chest wall movement of a human subject during respiration from the waveforms recorded using an impulse-radio (IR) ultra-wideband radar. The paper describes the signal processing to estimate sleep apnea detection and breathing rate. Some techniques to solve several problems in these ...
Kikhia Basel B Department of Computer Science, Electrical and Space Engineering, Luleå University of Technology, Luleå 971 87, Sweden. - - 2014
This article presents a study on analyzing body movements by using a single accelerometer sensor. The investigated categories of body movements belong to the Laban Effort Framework: Strong-Light, Free-Bound and Sudden-Sustained. All body movements were represented by a set of activities used for data collection. The calculated accuracy of detecting ...
Kokkinara Elena - - 2014
Previous studies have examined the experience of owning a virtual surrogate body or body part through specific combinations of cross-modal multisensory stimulation. Both visuomotor (VM) and visuotactile (VT) synchronous stimulation have been shown to be important for inducing a body ownership illusion, each tested separately or both in combination. In ...
Butz Martin V MV Cognitive Modeling, Department of Computer Science, Department of Psychology, Faculty of Science, Eberhard Karls University of Tübingen, Tübingen, - - 2014
The Rubber Hand Illusion (RHI) is a well-established experimental paradigm. It has been shown that the RHI can affect hand location estimates, arm and hand motion towards goals, the subjective visual appearance of the own hand, and the feeling of body ownership. Several studies also indicate that the peri-hand space ...
Yamashita Hideomi H Department of Radiology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655 - - 2014
Assessment of physiologic renal motion in order to optimize abdominal intensity-modulated radiation therapy and stereotactic body radiation therapy. Twenty patients with a median age of 47 years underwent computed tomography simulation and four-dimensional computed tomography acquisition. Thirty-nine kidneys were contoured during ten phases of respiration to estimate renal motion. Kidney motion ...
Surowiec Rachel K RK 1Ball State University, Muncie, - - 2013
Recently individualized frequency (I-Freq) has been introduced with the notion that athletes may elicit a greater reflex response at differing levels (Hz) of vibration. The aim of the study was to evaluate acute WBV as a feasible intervention to increase power in trained cyclists and evaluate the efficacy of utilizing ...
Matsumiya Kazumichi K Research Institute of Electrical Communication, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan. Electronic address: - - 2013
The question of how our body parts successfully interact with objects in the outside world is a fundamental problem in cognitive science and neuroscience [1, 2]. This problem is closely related to biologically important behaviors such as avoiding collisions or safely reaching for an object [3]. Although previous studies have ...
Basar Selda S Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Gazi University, Ankara, - - 2013
Wrestling includes a variety of functional properties: muscular strength, flexibility, neuromuscular coordination, and static and dynamic balance. The aim of the study was to identify differences in the strength, flexibility, postural stability and core stabilization of young national and international wrestlers in different weight groups. Eighty-one male wrestlers (17-21 years ...
Janurová Eva E Institute of Physics, Faculty of Mining and Geology, Technical University of Ostrava, Czech - - 2013
The concept of kinematic chains has been systematically applied to biological systems since the 1950s. The course of a ski jump can be characterized as a change between closed and open kinematic chains. The purpose of this study was to determine a relationship between adjacent segments within the ski jumper's ...
Kolev Ognyan I - - 2013
Since previous studies showed that loading influences posture and gait, the aim of the present study was to determine the effect of asymmetrical loading on locomotion. The following questions were posed: is there a habituation to asymmetrical loading and what is the effect of immediate unloading? Nine healthy subjects (4 ...
1 2 3 4 5 6 7 8 9 10 >