Sensorimotor posture control in the blind: Superior ankle proprioceptive acuity does not compensate for vision loss

Ozdemir, Recep A.; Pourmoghaddam, Amir; Paloski, William H.

doi:10.1016/j.gaitpost.2013.02.003

Cited by 41 publications

(26 citation statements)

References 23 publications

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“…: [ 39 ]). In postural control, it has been shown that proprioceptive acuity in enhanced in blind speakers compared to sighted speakers, but that this sensory advantage does not translate into increased postural control of the ankle ([ 40 ]). These results suggest that visual deprivation might alter the ability to control a motor target, as the data on dispersion suggest in our study.…”

Section: Discussionmentioning

confidence: 99%

Speaking Clearly for the Blind: Acoustic and Articulatory Correlates of Speaking Conditions in Sighted and Congenitally Blind Speakers

et al. 2016

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Compared to conversational speech, clear speech is produced with longer vowel duration, greater intensity, increased contrasts between vowel categories, and decreased dispersion within vowel categories. Those acoustic correlates are produced by larger movements of the orofacial articulators, including visible (lips) and invisible (tongue) articulators. Thus, clear speech provides the listener with audible and visual cues that are used to increase the overall intelligibility of speech produced by the speaker. It is unclear how those cues are produced by visually impaired speakers who never had access to vision. In this paper, we investigate the acoustic and articulatory correlates of vowels in clear versus conversational speech, and in sighted and congenitally blind speakers. Participants were recorded using electroarticulography while producing multiple repetitions of the ten Quebec French oral vowels in carrier sentences in both speaking conditions. Articulatory variables (lip, jaw, and tongue positions) as well as acoustic variables (contrasts between vowels, within-vowel dispersion, pitch, duration, and intensity) were measured. Lip movements were larger when going from conversational to clear speech in sighted speakers only. On the other hand, tongue movements were affected to a larger extent in blind speakers compared to their sighted peers. These findings confirm that vision plays an important role in the maintenance of speech intelligibility.

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Section: Discussionmentioning

confidence: 99%

Speaking Clearly for the Blind: Acoustic and Articulatory Correlates of Speaking Conditions in Sighted and Congenitally Blind Speakers

et al. 2016

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“…Therefore, evaluating these risk factors in healthy individuals is important to protect and rehabilitate the ankle. When healthy subjects are in question, the clinicians mostly prefer to evaluate or measure the strength, proprioceptive ability, or muscle latency of the dominant ankle (12)(13)(14). Recently, however, it was shown that the latency of the peroneus longus muscle was significantly different between the non-dominant and dominant ankles in healthy physically active individuals, with the dominant ankle having a longer latency than the non-dominant ankle (15).…”

Section: Introductionmentioning

confidence: 99%

Muscle Latency and Proprioception in Non-Dominant and Dominant Legs of Healthy Sedentary Individuals

Şekir¹,

Keleş²,

Gür³

2015

Turk J Phys Med Rehab

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Objective: The effects of lower extremity dominance on response latency and proprioceptive ability have been reported for physically active individuals, but not for sedentary individuals. The aim of this research was to explore the differences in muscle latency and proprioceptive ability between the non-dominant and dominant legs of healthy sedentary individuals. Material and Methods: Nineteen healthy male subjects without a history of any physical training practice for a minimum of 12 months were enrolled in this study. An ankle inversion tilting platform was used to measure the reaction times of the tibialis anterior and peroneus longus muscles. Joint position sense measured actively and passively and kinesthesia were used to evaluate proprioception of the ankle joint. Results: Neither the latency times of the tibialis anterior and peroneus longus muscles nor the proprioceptive ability score measurements exhibited significant differences between the non-dominant and dominant legs (p>0.05). Conclusion:The results of this investigation indicates that there is no side differences between the limbs with the evaluation of the peroneus longus or tibialis anterior muscle reaction times, ankle joint position sense, and ankle kinesthesia for healthy sedentary individuals.

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“…They added that ''independent, simultaneous measurements of the CoP and CoM are a necessary step towards characterizing their relationship''. Unfortunately, CoM is sometimes still estimated through a simple low-pass filtering of CoP [75]. However, this assumption came from comparing low-pass filtering of CoP to an approximation of CoM, the weighted sum of segment CoM and not the real CoM.…”

Section: Resultsmentioning

confidence: 99%

Which biomechanical models are currently used in standing posture analysis?

Crétual

2015

Neurophysiologie Clinique/Clinical Neurophysiology

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Sensorimotor posture control in the blind: Superior ankle proprioceptive acuity does not compensate for vision loss

Cited by 41 publications

References 23 publications

Speaking Clearly for the Blind: Acoustic and Articulatory Correlates of Speaking Conditions in Sighted and Congenitally Blind Speakers

Speaking Clearly for the Blind: Acoustic and Articulatory Correlates of Speaking Conditions in Sighted and Congenitally Blind Speakers

Muscle Latency and Proprioception in Non-Dominant and Dominant Legs of Healthy Sedentary Individuals

Which biomechanical models are currently used in standing posture analysis?

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