Haptic and visual influences on grasp point selection.

abstract：:In recent experiments (Q. Lai, C. H. Shea, & M. Little, 2000; C. H. Shea, G. Wulf, J. Park, & B. Gaunt, 2001), auditory models were found to be effective in enhancing relative-timing performance and learning in constant practice conditions. In the present experiment, the authors examined (a) whether an auditory model ...

journal_title：Journal of motor behavior

authors： Lai Q,Shea CH,Bruechert L,Little M

更新日期：2002-09-01 00:00:00

abstract：:Subjects pressed a key down as fast as possible but controlled the response duration of the keypress. The task required long (300 ±100 msec) and short (150±50 msec) durations in both simple (long only or short only) and choice (mixed long and short) conditions. Choice reaction time was slower than simple reaction time...

journal_title：Journal of motor behavior

authors： Kerr B

更新日期：1979-12-01 00:00:00

abstract：:Pianists (N = 9) memorized and performed polyrhythms over a range of speeds from 1 to 16 notes/s. Using several fingers of each hand to press the keys on a piano keyboard, they performed the 5:3 polyrhythm by playing "3s" with one hand simultaneously with "5s" in the other. All the participants were able to maintain o...

journal_title：Journal of motor behavior

authors： Bogacz S

更新日期：2005-01-01 00:00:00

abstract：:Hand movements may be anticipatorily planned to reach an immediate target and at the same time facilitate movements to subsequent targets. Researchers have proposed that in anticipatory planning, information about subsequent targets needs to be processed to engage in the planning of the next movement. To test this hyp...

journal_title：Journal of motor behavior

authors： Herbort O,Butz MV

更新日期：2009-11-01 00:00:00

abstract：:In examining films of lifting movements in a study of the size-weight illusion (Davis & Roberts, 1976) a consistency was noted in the values obtained for the maximum accelerations of the objects lifted. While at first surprising, this finding can be embedded significantly in theories relating to kinesthetic illusions ...

journal_title：Journal of motor behavior

authors： Roberts WL,Davis CM

更新日期：1978-12-01 00:00:00

abstract：:Augmented feedback, provided by coaches or displays, is a well-established strategy to accelerate motor learning. Frequent terminal feedback and concurrent feedback have been shown to be detrimental for simple motor task learning but supportive for complex motor task learning. However, conclusions on optimal feedback ...

journal_title：Journal of motor behavior

authors： Sigrist R,Rauter G,Riener R,Wolf P

更新日期：2013-01-01 00:00:00

abstract：:To improve the characterization of motor impairment, we compared the sensitivities of a phase plane metric with temporal domain measures derived from integrated squared jerk (ISJ). Five subjects with stroke and a cohort of 21 neurologically intact volunteers performed self-paced, isolated elbow flexions. Analysis of a...

journal_title：Journal of motor behavior

authors： Wininger M,Kim NH,Craelius W

更新日期：2012-01-01 00:00:00

abstract：:The authors developed an evaluation scale for sit-stand from the ground for children with Duchenne muscular dystrophy (DMD) and tested its reliability. The construction occurred in stages: (a) the characterization of the movement in healthy children, (b) the characterization of the movement in children with DMD, (c) t...

journal_title：Journal of motor behavior

authors： Escorcio R,Caromano FA,Hukuda ME,Fernandes LA

更新日期：2011-01-01 00:00:00

abstract：:The authors investigated whether the knowledge of results (KR) schedule influences the extent to which intrinsic feedback is noticed and used. Fifty-six participants received KR that was either delayed over 2 trials (Delay-2) or provided directly after each trial (Delay-0) during 160 trials of an unfamiliar aiming tas...

journal_title：Journal of motor behavior

authors： Anderson DI,Magill RA,Sekiya H,Ryan G

更新日期：2005-05-01 00:00:00

abstract：:The tracking of complex two-dimensional movement patterns was studied. Subjects were blindfolded, and their right hand moved around stencil patterns in the midsagittal plane, while the left hand concurrently reproduced the right-hand movement. The accuracy with which the left hand shadowed the criterion movements of t...

journal_title：Journal of motor behavior

authors： Bairstow PJ,Laszlo JI

更新日期：1979-01-01 00:00:00

abstract：:The authors used a precueing method to examine the effects of response priming and inhibition on goal-directed action. Participants (N = 18) completed aiming movements to 1 of 2 locations following predictive (80% cued), nonpredictive (50% cued), and antipredictive (20% cued) precues at 1 of the 2 possible target loca...

journal_title：Journal of motor behavior

authors： Welsh TN,Elliot D

更新日期：2004-06-01 00:00:00

abstract：:Healthy individuals (n = 6) and a patient with "pure" primary writing tremor executed pointing and drawing movements while adopting different hand postures. The control subjects and the patient exhibited similar kinematics for most conditions. The patient displayed a severe right hand 4- to 6-Hz tremor and prolonged m...

journal_title：Journal of motor behavior

authors： Rotella DL,Darling WG,Rizzo M

更新日期：1999-06-01 00:00:00

abstract：:The nature of visually guided locomotion was examined in an experiment where subjects had to walk to targets under various conditions. Target distance was manipulated so that subjects had to (a) lengthen their paces in order to hit the target; (b) shorten their paces; (c) make no adjustments to their standard pace len...

journal_title：Journal of motor behavior

authors： Laurent M,Thomson JA

更新日期：1988-03-01 00:00:00

abstract：:The purpose of this study was to determine the association between corticomotor excitability (CME) of gluteus maximus (GM) and hip biomechanics during a single-leg drop-jump task. Thirty-two healthy individuals participated. The slope of the input-output curve (IOC) obtained from transcranial magnetic stimulation was ...

journal_title：Journal of motor behavior

authors： Shih Y,Fisher BE,Smith JA,Powers CM

更新日期：2021-01-01 00:00:00

abstract：:The effects of an interpolated motor short-term memory task during the KR-delay interval on skill acquisition was investigated. On each trial subjects estimated two positions on a linear-positioning apparatus. One group of subjects was presented two biasing movements, which they immediately recalled, during the KR-del...

journal_title：Journal of motor behavior

authors： Shea JB,Upton G

更新日期：1976-12-01 00:00:00

abstract：:The ability of Ss to maintain or improve the accuracy of force of a hammer strike in the presence or absence of KR was examined. 70 trials on a 10% KR schedule provided opportunities to examine this ability. Initial improvements were dependent on KR. More gradual improvements continued but could not separately be attr...

journal_title：Journal of motor behavior

authors： Williams ID,Roy EA

更新日期：1972-06-01 00:00:00

abstract：:The authors investigated the self-selected, overground walking patterns of 7 children (aged 11 months to 1 year, 5 months) at the initiation of walking (brand-new walkers [BNWs]) and for the next 6 months at 1-month intervals. Walking speed, stride length, and stride frequency increased significantly between the first...

journal_title：Journal of motor behavior

authors： Holt KG,Saltzman E,Ho CL,Kubo M,Ulrich BD

更新日期：2006-05-01 00:00:00

abstract：:A standing individual can use several strategies for modulating pushing force magnitude. Using a static model, researchers have shown that the efficacy of those strategies varies considerably. In the present article, the authors propose a human motor control dynamic model for analyzing transients that occur when an in...

journal_title：Journal of motor behavior

authors： Rancourt D,Hogan N

更新日期：2001-12-01 00:00:00

abstract：:Two experiments are reported that utilized a task similar to one developed by Pew (1966) in which subjects controlled the position of a continually moving cursor by alternately pressing two response keys. Experiments I and 2 replicated Pew's findings. That is, over acquisition trials, subjects exhibited an increase in...

journal_title：Journal of motor behavior

authors： Kohl RM,Shea CH

更新日期：1992-09-01 00:00:00

abstract：:A simple form of training the conscious control of motor units in skeletal muscle has been demonstrated in a series of children under age 6. Easy boredom is the chief deterrent in the very young. So long as a child understands and cooperates, he can learn to isolate single units in a period of about 30 min. ...

journal_title：Journal of motor behavior

authors： Fruhling M,Basmajian JV,Simard TG

更新日期：1969-03-01 00:00:00

abstract：:We explore the idea that cognitive demands of the handwriting would influence the degree of automaticity of the handwriting process, which in turn would affect the geometric parameters of texts. We compared the heterogeneity of handwritten texts in tasks with different cognitive demands; the heterogeneity of texts was...

journal_title：Journal of motor behavior

authors： Crespo Y,Soriano MF,Iglesias-Parro S,Aznarte JI,Ibáñez-Molina AJ

更新日期：2018-11-01 00:00:00

abstract：:The authors' goal was to identify the control mechanisms used by long jumpers (N = 6) to precisely position their foot at the board. In addition to the intertrial method usually used in previous research, an original method based on a trial-by-trial analysis was also implemented. If the approach to the board in long j...

journal_title：Journal of motor behavior

authors： Montagne G,Cornus S,Glize D,Quaine F

更新日期：2000-03-01 00:00:00

abstract：:Participants placed different parts of their foot as close as possible to a target line without stepping onto it while wearing modified goggles that obscured their view of their feet. Once they felt that their foot was appropriately placed, the distance between their foot and the target line was measured. Participants...

journal_title：Journal of motor behavior

authors： Kobayashi Y,Fujimoto H,Nakazawa K,Akai M

更新日期：2009-10-01 00:00:00

abstract：:Bimanual coordination is an essential human function requiring efficient interhemispheric communication to produce coordinated movements. Previous research suggests a "bimanual advantage" phenomenon, where completing synchronized bimanual tasks results in less variability than unimanual tasks. Additionally, of hand do...

journal_title：Journal of motor behavior

authors： Oswald K,Bo J

更新日期：2019-01-01 00:00:00

abstract：:Participants traced two circles simultaneously and the diameter of one circle was scaled as the diameter of the other circle remained constant. When the scaled circle was larger, amplitude error shifted from overshooting to undershooting, while shifting from undershooting to overshooting when this circle was smaller. ...

journal_title：Journal of motor behavior

authors： Buchanan JJ,Ryu YU

更新日期：2012-01-01 00:00:00

abstract：:Two experiments describe the effects of extended practice on the development of motor control programs for simple target-striking responses. In Experiment 1,400 right-hand trials of simple one-target and two-target striking tasks were performed. In Experiment 2,600 practice trials were given. Overall reaction time (RT...

journal_title：Journal of motor behavior

authors： Fischman MG,Lim CH

更新日期：1991-03-01 00:00:00

abstract：:Changing automatized movement patterns often leads to initial performance decrements caused by proactive interference. In this study, we scrutinized whether proactive interference could be reduced by inhibiting the to-be-changed movement pattern by means of a physical movement constraint and verbal inhibition instruct...

journal_title：Journal of motor behavior

authors： Sperl L,Cañal-Bruland R

更新日期：2020-01-01 00:00:00

abstract：:The temporal characteristics of repetitive finger tapping by the left and right hands were examined in two experiments. In the first experiment, interresponse intervals (IRIs) were recorded while right-handed male subjects tapped in synchrony with an auditory timing pulse (the synchronization phase) and then attempted...

journal_title：Journal of motor behavior

authors： Truman G,Hammond GR

更新日期：1990-12-01 00:00:00

abstract：:Preview and voluntary movement in discrete motor response timing was investigated. Subjects lifted the right index finger from a response key when a moving pointer (1.260-sec travel time) passed directly under a stationary pointer. Four groups of 15 male and female college students performed 150 trials of the timing t...

journal_title：Journal of motor behavior

authors： Christina RW,Buffan JL

更新日期：1976-06-01 00:00:00

abstract：:Internal focus of attention on a movement or focusing on an external target are both strategies that can affect motor performance. The authors explored whether manipulating subjects' focus of attention while walking would alter gait variability, a measure reflecting consistency of gait and associated with the risk of ...

journal_title：Journal of motor behavior

authors： Yogev-Seligmann G,Sprecher E,Kodesh E

更新日期：2017-03-01 00:00:00