proprioception

..The neural activity in the premotor cortex reflected the feeling of ownership of the hand. This suggests that multisensory integration in the premotor cortex provides a mechanism for bodily self-attribution...

..This body model can distinguish between corporeal and non-corporeal objects, and it therefore plays a critical role in maintaining a coherent sense of one's body...

When the apparent visual location of a body part conflicts with its veridical location, vision can dominate proprioception and kinesthesia. In this article, we show that vision can capture tactile localization...

..Conversely, at the level of the phenomenological content, the illusion is modulated by top-down influences originating from the representation of one's own body...

..These neurons appear to combine visual and somatosensory signals in order to monitor the configuration of the limbs. They could form the basis of the complex body schema that we constantly use to adjust posture and guide movement...

..These data reveal important similarities between human and non-human primates in the network of brain areas involved in the multisensory representation of limb position...

..This dissociation implies that conclusions about feelings of ownership cannot be drawn from measuring proprioceptive drift alone...

..A two-group experimental design with repeated measures on one factor was used...

..These results suggest that psychometric tools may provide a rich method for studying the structure of conscious experience, and point the way towards an empirically rigorous phenomenology...

..The time taken to elicit the illusion followed a similar trend. These results may reflect the response properties of bimodal visuo-tactile cells encoding peripersonal space around the hand...

..The adopted forward inclined posture may potentially be a factor in the recurrence of LBP...

To test the hypotheses that poor knee joint proprioception is related to limitations in functional ability, and poor proprioception aggravates the impact of muscle weakness on limitations in functional ability in osteoarthritis (OA) of ..

..The findings indicate that motor learning affects not only motor areas of the brain but changes sensory function as well...

..Beyond this range, both spatial-orientation tasks seem to rely mainly on a common tilt signal...

..We therefore suggest that, whereas cortical regions within the posterior IPS and LOC represent hand-centered space in a predominantly visual manner, the anterior IPS uses multisensory information in representing perihand space...

..For proprioception we found that localization in the radial direction with respect to the shoulder is more precise than ..

..This phenomenon depended on active tool-use, developing with increased experience in using the tool. We relate these results to recent physiological and neuropsychological findings...

..This shows that it is important to consider effects at the neural level in order to understand performance at the behavioural level...

..History of knee injury may be a contraindication for proprioceptive balance board training. CONCLUSIONS: Use of proprioceptive balance board program is effective for prevention of ankle sprain recurrences...

..If we accept that restoration of proprioception is the result of reinnervation of the ACL, leaving the ACL remnants as a source, if this is surgically ..

..The present findings indicate that human ankle proprioception is rather robust to muscle pain.

The conflict between vision and proprioception has been proposed to explain why healthy subjects perform worse than proprioceptively deafferented patients in conditions with optical displacement, e.g. novel mirror drawing...

..from passive movements is decreased relative to active movements, or in some cases is even absent, the role of proprioception in self-recognition has been questioned...

..A follow-up study evaluating postural control, lumbar movement perception, and paraspinal muscle reflexes in disc herniation-related chronic low back pain (LBP) before and after discectomy...

..pain induced by a Levo-Ascorbic (L-AS) solution injected in a foot muscle can transiently modify both regional proprioception and stimulus perception...

AIM: Proprioception is essential in coordinating body segments and controlling muscles to perform movements. Animal studies have reported reduced muscle spindle sensitivity in jaw muscles during stimulation of sympathetic nerves...

..Participants experienced the illusion despite the use of incongruent stimuli, both when vision was precluded and when visual feedback provided clear evidence of the tactile mismatch...

..As only left anodal GVS lead to such changes, and based on neurological data on body part ownership, we suggest that this vestibular interference is mediated by the right temporo-parietal junction and the posterior insula...

..It seems that the congruence of sensory stimuli ismore important to establish body ownership than the presence of multiple sensory signals...

....

To determine whether proprioceptive impairments exist in patients with low back pain (LBP). We hypothesized that patients with LBP would exhibit larger trunk proprioception errors than healthy controls.

..The presence of these illusory experiences was confirmed by questionnaire responses and proprioceptive drift data...

..have been found to have proprioceptive defects, but the cause of these defects has not been identified nor has the relationship between proprioception and subjective function, laxity, activity level and age been adequately studied.

..Although dystonia in the RSD patients was limited to the distal musculature, the results suggest involvement of interneuronal circuits that mediate postsynaptic inhibition of the motoneurons of the proximal musculature...

..These results suggest that tactile, spatially selective attention can operate according to an abstract spatial frame of reference, which is significantly modulated by multisensory contributions from both proprioception and vision.

..CONCLUSIONS: Positive effects of the balance board programme could only be achieved at certain costs. However, if broadly implemented, costs associated with the balance board programme would probably be lower...

..The purpose of this study was to discover whether pain could be induced in pain-free healthy volunteers when this conflict was generated transiently in a laboratory setting...

..Taken together these studies provide a statistical framework for how the motor system performs in the presence of uncertainty...

..For example, little is known about the accuracy of arm proprioception: Does it vary with changes in arm configuration, since some peripheral receptors are engaged only when joints ..

..Furthermore, the results suggest that additional information was used. This information might have been visual information about body parts other than the fingertip or it might have been visual information about the environment...

..This review specifically address the relation between proprioception and motor impairments in PD...

..This study provides an exciting bridge between monkey neurophysiology and human visual capacity while also offering a novel approach for improving visual defects acquired via cortical injury...

..The result has implications for how the brain represents the body across different sensory modalities...

..Taken together, these results suggest that the non-preferred arm/hemisphere system is specialized for the processing of movement-related proprioceptive feedback...

..It was concluded that the proprioceptive feedback from all the muscles with which the moving joint is equipped provides the CNS with highly specific information that might contribute to a graphic sign identification process...

..Our findings support the idea that sensory changes occur in parallel with changes to motor commands during motor learning...

..effects of a functional knee brace specifically designed for patients with varus gonarthrosis on measures of proprioception and postural control...

Despite the importance of proprioception during upper limb movement, the extent to which arm/hemisphere asymmetries exist in the utilization of proprioceptive feedback remains unclear...

..A challenge for the future will be to reveal how the centrally derived sense of effort and peripherally derived afferent information interact to give us our kinesthetic sense...

....

..this study was to clarify whether osteoarthritis (OA) patients have a localized or a generalized reduction in proprioception. Twenty one women with knee OA (mean age [SD]: 57.1 [12.0] years) and 29 healthy women (mean age [SD]: 55...

..64, 95% CI -21.96 to 4.73, and -10.71, 95% CI -25.19 to 2.60 respectively; both p<0.001). Proprioception worsened after bupivacaine (mean percentage difference -28.15%, 95% CI -83.47 to 19.74; p=0...

..Our proprioceptive model, based on neurosensory data recorded in behaving humans, should then be a useful tool in fields of research such as sensorimotor learning, rehabilitation, and virtual reality...

This study investigated the contribution of ankle muscle proprioception to the control of dynamic stability and lower limb kinematics during adaptive locomotion, by using mechanical vibration to alter the muscle spindle output of ..

Trigeminal proprioception related to rodent macrovibrissae movements is believed to involve skin receptors on the whisker pad because pad muscles operate without muscle spindles...

....

..This aftereffect corresponded to the summation of the shift in proprioception, measured by straight ahead pointing without vision (S), and the visual straight ahead judgement (V), measured ..

..This research suggests that proprioception is recalibrated following visual exposure to prosthetic hands and that this recalibration is independent of ..

..Altogether, the present findings suggested that the AFO allowed the subjects to limit the postural perturbation induced by a localized fatigue of the ankle muscles during bipedal quiet standing...

Relatively few studies have been reported that document how proprioception varies across the workspace of the human arm...

The objective of this study is to assess proprioception anomalies in postural deficiency syndrome in a group of children suffering from reading impairment.

..processes, respectively, our current findings indicate that vision is used primarily for planning movement distance, while proprioception is used primarily for online corrections during rapid, unseen movements toward visual targets.

..The data may reveal perceptual consequences of acute changes in central somatosensory maps, changes which are known to occur with deafferentation...

....

To compare the effect of a whole body vibration training (WBVT) programme with a conventional training (CT) programme on knee proprioception and postural stability after anterior cruciate ligament (ACL) reconstruction.

..b>Proprioception is a broad concept that includes balance and postural control with visual and vestibular contributions, joint ..

The brain determines positions and movements of body parts from inputs arising at least from vision and proprioception. Using the brain event-related potential called the lateralized readiness potential, which reflects motor cortical ..

..In the experiments presented here, we tested whether accurate arm proprioception and also whether the precision fingertip contact afforded by the arm's many degrees of freedom are necessary ..

We prospectively studied knee proprioception following ACL reconstruction in 40 patients (34 men and six women; mean age 31 years)...

The aim of this study was to examine proprioception with and without muscle tension and knee function in two groups of chronic (> 1 year post-injury) patients with deficient anterior cruciate ligaments with distinctly different ..

..This finding is important because it reveals a new bilateral multisensory mechanism for tactile perception and limb ownership...

The purpose of this study was to examine the immediate effects of spinal manipulative therapy (SMT) on trunk proprioception in subjects with asymptomatic chronic low back pain (CLBP) and determine if those effects lasted 1 week.

..Threshold of movement detection; injured 1.48+/-0.81 degrees, uninjured 1.44+/-0.65 degrees. Therefore, it may be questioned if the ACL itself plays a major role in proprioception performance as it is commonly measured in the laboratory.

..Second, they argue against the hypothesis that participants own hand tends to disappear during the illusion and that the rubber hand actively replaces it...

..We suggest that this phenomenon is due to the dominance of vision over proprioception: the system coding peripersonal space can be 'deceived' by the vision of a fake hand, provided that its ..

..Brain and space (pp. 461-481); Paillard, J. (1999). Body schema and body image: A double dissociation in deafferented patients. In G. N. Gantchev, S. Mori, & J.Massion (Eds.), Motor control, today and tomorrow (pp. 197-214)]...

..This view inspires thinking beyond our customary conceptualization of a 'motor' system...

..Notably, the effects of neck muscle fatigue on orientation are opposite to those produced by neck proprioception. The neck represents a complex source of inputs capable of modifying our orientation in space during a ..

..Whereas nociceptive pathfinding depends on NgCAM and axonin-1, proprioceptive fibers require NrCAM and F11...

..These results indicate an important role for the stretch reflex and stiffness regulation during locomotion...

OBJECTIVE: To evaluate whether patients suffering from whiplash-associated disorders have impaired shoulder proprioception and whether the acuity of shoulder proprioception is reflected in the patients' symptoms and self-rated function...

....

Uncertainty of the roles of proprioception and efference copy in visual spatial perception persists...

..The proprioceptive differences observed in this study are likely the result of experience-driven refinement in the utilization of somatosensory feedback throughout childhood and into adolescence...

....

..In other words, the alteration of ankle proprioception had a greater destabilising effect in subjects exhibiting the smallest CoP displacements when standing in a ..

..To our knowledge, no studies have reported the influence of measures of impairment on postural control after such an injury...

..SUMMARY OF BACKGROUND DATA: Position sense is one dimension of proprioception, classically assessed by the ability to reproduce preselected target positions...

..Here we test whether similar interventions reverse the abnormal SMO in musician's dystonia and writer's cramp. If so, they could be developed for therapeutic application...

Two groups of women, 15 patients with lateral epicondylitis and 21 healthy controls, were studied to compare proprioception in the elbows and knees between the groups...

..Subjects made reaches in a virtual reality environment in which vision and proprioception were dissociated by shifting the location of visual feedback...

....

..During athletic events, athletes may return to play after this treatment. The effects of cryotherapy on dominant shoulder proprioception have been assessed, yet the effects on throwing performance are unknown.

..These findings highlight the flexibility of the human balance repertoire and underscore both the advantages and limitations of using trained voluntary movements to aid balance corrections in man...

..The aim of this study was to investigate the effect of different skin-ankle brace interface pressures on quiet single limb balance and the electromyographic (EMG) activation sequence of four lower limb muscles...

..These findings indicate that online vision is customarily used to regulate landing behaviour when stepping down...

..This suggests that muscle spindle organs modulate the ability to sense velocity of motion and are important in the control of dynamic motion of the spine...

....

..We predict that similar processes may be identified in the control of standing...

..The prediction that several types of neurons specify referent control variables for motor actions may be tested in future studies. The theory may also be advanced by applying the notion of threshold control to perception and cognition...

..We propose a relatively simple computational model based on reflex responses to perturbations which is capable of accounting for iterative changes in temporal patterns of muscle co-activation...

..They help adjust the pulley system, and are associated with palisade endings that may subserve ocular proprioception. Consequently, they may play a role in controlling normal eye orientation, and eye misalignment in strabismus...

..functional capacity (WOMAC function subscale, and chair-stand performance), muscle strength, knee joint proprioception, health related quality of life (SF36), and psychosocial functioning (mood, stress, self-efficacy and social ..

..direct examination of the role and nature of primary afferent neurons in the perception of body state known as proprioception which is formed through the integration of multiple primary afferent neuronal inputs...

..direct examination of the role and nature of primary afferent neurons in the perception of body state known as proprioception which is formed through the integration of multiple primary afferent neuronal inputs...

..concentrations and ligament compliance is established, the consequence of increased ligament compliance on proprioception and reactive neuromuscular control of joint stability will be evaluated...

..To determine if the anterior and posterior interosseous nerves conduct afferent signals related to wrist joint proprioception. Hypothesis 2...

..It aims to understand how information about objects is acquired by the hand through the senses of touch, proprioception, and vision. We propose that sensory responses are perceived in the context of task goals...

....

..However, the neural basis for pain- induced modulation of craniofacial proprioception is not well understood. Three specific aims will address this issue. Aim 1...

..matrix and fibroblast biology; force adaptation and response to loading; fascial innervation, nociception and proprioception; fascial research in special populations; a panel discussion of controversies in fibroblast research; and a ..

..patient function and reduce pain, they often involve radical procedures mandating a hospital stay and reduce proprioception and stability which can lead to an increased incidence of falls...

..serious medical problems stem from this condition, including degradation of the mechanical senses of touch and proprioception. Usually affecting the extremities first and most severely, the progressive loss of sensory function is a ..

..of mechanical stimuli to cellular potentials: it underlies our senses of touch, hearing, balance and proprioception. Previous work showed that NOMPC is needed to transduce touch and sound, and is located at the tips of sensory ..

..thereby producing both spatial and temporal cues, under conditions of active or passive touch (with or without proprioception) or indirect contact via a tool (a stylus) thereby producing temporal cues alone...

..Hypothesis 1: Females have lower stability, stiffness and strength, greater joint laxity, and less sensitive proprioception in external and internal tibial rotations and in valgus and varus than males...

..neurons of the dorsal root and trigeminal ganglia detect deformations to the body and signal the senses of proprioception touch and pain...

DESCRIPTION (Adapted from the Applicant's Abstract): Proprioception, the perception of position and movement, plays a critical role in motor coordination...

..We have also demonstrated that visually guided BMI performance can be improved with the addition of natural proprioception, and that monkeys can discriminate electrical stimuli of different intensity in proprioceptive areas of the ..

..short-range axons, including those connecting neighboring primary motor cortex and somatosensory cortex, where proprioception is encoded...

..Damage to the nerve fibers of these neurons in the spinal cord can result in the loss of sensation and proprioception. The cellular basis of retraction in vitro will be studied using live video microscopy to directly determine ..

..Somatosensory mechanoreceptors mediate the senses of touch, pain and proprioception. The importance of these senses to human health is underscored by diseases that cause peripheral neuropathy ..

..Our preliminary data with a mouse hindlimb specific defect in proprioception has led us to hypothesize that trabecular bone homeostasis is modulated by neuromuscular proprioception...

..Secondarily, we will examine the impact of malalignment, laxity, muscle weakness and proprioception impairment on long-term (0-7 year) outcome...