Effects Of Proprioceptive Feedback Research Articles

重度・重複障害児の手指運動の方向付けおよび調整における固有覚フィードバックの効果

重度・重複障害児の手指運動の方向付けおよび調整における固有覚フィードバックの効果

The effects of proprioceptive feedback on pallidal LFP activity in patients with cervical dystonia

The effects of proprioceptive feedback on pallidal LFP activity in patients with cervical dystonia

The effect of sensory feedback on crayfish posture and locomotion: I. Experimental analysis of closing the loop.

The effect of proprioceptive feedback on the control of posture and locomotion was studied in the crayfish Procambarus clarkii (Girard). Sensory and motor nerves of an isolated crayfish thoracic nerve cord were connected to a computational neuromechanical model of the crayfish thorax and leg. Recorded levator (Lev) and depressor (Dep) nerve activity drove the model Lev and Dep muscles to move the leg up and down. These movements released and stretched a model stretch receptor, the coxobasal chordotonal organ (CBCO). Model CBCO length changes drove identical changes in the real CBCO; CBCO afferent responses completed the feedback loop. In a quiescent preparation, imposed model leg lifts evoked resistance reflexes in the Dep motor neurons that drove the leg back down. A muscarinic agonist, oxotremorine, induced an active state in which spontaneous Lev/Dep burst pairs occurred and an imposed leg lift excited a Lev assistance reflex followed by a Lev/Dep burst pair. When the feedback loop was intact, Lev/Dep burst pairs moved the leg up and down rhythmically at nearly three times the frequency of burst pairs when the feedback loop was open. The increased rate of rhythmic bursting appeared to result from the positive feedback produced by the assistance reflex.

Effects of muscle dynamics and proprioceptive feedback on the kinematics and CPG activity of salamander stepping

Reference EPFL-CONF-168634doi:10.1186/1471-2202-12-S1-P158 URL: http://www.springerlink.com/content/240k7172657m180g/ Record created on 2011-09-05, modified on 2017-12-10

Evaluating visual bias and effect of proprioceptive feedback in unilateral neglect

We propose modified versions of the line-bisection task for assessing visual bias and effect of proprioceptive feedback in unilateral neglect; that is, the verbal line-bisection (VLB) task and the VLB plus pointing task. The VLB task requires only a verbal response to assess pure visual bias. Conversely, the VLB plus pointing task requires both a verbal response and pointing to assess visual and proprioceptive bias. Ten patients with unilateral neglect were administered these tasks on a computer using presentation software. Eight participants showed obvious rightward deviation in the VLB task, and were thus classified as patients with visual neglect. Four participants showed significantly greater deviation in the VLB plus pointing task than in the VLB task, and were thus classified as patients with proprioceptive bias. Visual bias and effect of proprioceptive feedback in unilateral neglect were successfully assessed by these tasks.

Effects of proprioceptive feedback and environmental characteristics on spatial learning in virtual environments

The effect of proprioceptive information and environmental characteristics on spatial learning was investigated when participants repeatedly navigated complex three-dimensional virtual mazes. Proprioceptive information, provided by viewing the mazes using a head-mounted display, was found to have little effect. The primary environmental characteristics were layout orthogonality (using paths that intersected at either oblique or 90° angles), lines of sight (controlled using computer-generated “fog”), a visually defined perimeter and global landmarks. Participants travelled less far in orthogonal than oblique environments, even when fog was used to make the distance that participants could see equivalent. The removal of fog caused a further, substantial reduction in the distance participants travelled, indicating the importance of extended lines of sight, as predicted by the architectural theory of space syntax. Global landmarks promoted a similar rate of spatial learning to a visual perimeter.

Co-ordination of the Flight Motor Pattern with Forewing Stretch Receptor Stimulation in Immature and Mature Adult Locusts

Abstract We investigated the effect of proprioceptive feedback on the flight motor pattern during maturation of the locust flight system by stimulating the forewing stretch receptors (fSRs) in immature and mature adults and recording the frequency of wing depressor muscle activity. Stimulation of both fSRs produced co-ordination with the motor pattern in 4 of 10 immature animals and in 6 of 16 mature animals. The strength of co-ordination was measured as the variability of the phase of hindwing depressor muscle activity within the stimulus period. Co-ordination was stronger and the phase values higher in mature animals presented with a stimulus that mimics fSR activity in response to rhythmic wing elevation. We conclude that maturation of the flight motor is due, in part, to a change in the response of the central circuitry to a change in the timing of proprioceptive input.

The Effects of Visual and Proprioceptive Feedback on Motor Learning

A self paced linear positioning task was used to study the effects of visual and proprioceptive feedback on learning and performance. Subjects were trained with knowledge of results (KR) and tested without it. The analysis of the absolute error scores of the no-KR trials is discussed in this paper. Visual feedback was the more effective source of sensory feedback, but proprioceptive feedback was also effective. An observation that the response did not become independent of sensory feedback as a result of learning, was interpreted as supporting Adams closed loop theory of motor learning in preference to the motor program hypothesis. Other data showed that the presence of visual feedback during learning could inhibit the later effectiveness of proprioceptive feedback.