Descriptive pilot study of vividness and temporal equivalence during motor imagery training after quadriplegia / Sébastien Mateo in Annals of physical and rehabilitation medicine, Vol. 61, n°5 (Septembre 2018)

Public ISBD [article]  inAnnals of physical and rehabilitation medicine > Vol. 61, n°5 (Septembre 2018) . - p. 300-308 Titre : Descriptive pilot study of vividness and temporal equivalence during motor imagery training after quadriplegia Type de document : texte imprimé Auteurs : Sébastien Mateo ; Karen T. Reilly ; Christian Collet ; Gilles Rode Année de publication : 2018 Article en page(s) : p. 300-308 Note générale : Doi : 10.1016/j.rehab.2018.06.003 Langues : Anglais (eng) Mots-clés : Mental practice  Tetraplegia  Tenodesis grasp  Rehabilitation  Vividness  Mental chronometry Résumé : Background Motor imagery (MI) training is often used to improve physical practice (PP), and the functional equivalence between imagined and practiced movements is widely considered essential for positive training outcomes. Objective We previously showed that a 5-week MI training program improved tenodesis grasp in individuals with C6–C7 quadriplegia. Here we investigated whether functional equivalence changed during the course of this training program. Methods In this descriptive pilot study, we retrospectively analyzed data for 6 individuals with C6–C7 quadriplegia (spinal cord injured [SCI]) and 6 healthy age-matched controls who trained for 5 weeks in visual and kinesthetic motor imagery or visualization of geometric shapes (controls). Before training, we assessed MI ability by using the Kinesthetic and Visual Imagery Questionnaire (KVIQ). We analyzed functional equivalence by vividness measured on a visual analog scale (0–100) and MI/PP time ratios computed from imagined and physically practiced movement durations measured during MI training. These analyses were re-run considering that half of the participants with quadriplegia were good imagers and the other half were poor imagers based on KVIQ scores. To investigate generalization of training effects, we analyzed MI/PP ratios for an untrained pointing task before (3 baseline measures), immediately after, and 2 months after training. Results During MI training, imagery vividness increased significantly. Only the good imagers evolved toward temporal equivalence during training. Good imagers were also the only participants who showed changes in temporal equivalence on the untrained pointing task. Conclusion This is the first study reporting improvement in functional equivalence during an MI training program that improved tenodesis grasp in individuals with C6–C7 quadriplegia. We recommend that clinical MI programs focus primarily on vividness and suggest that feedback about movement duration could potentially improve temporal equivalence, which could in turn lead to further improvement in PP. Permalink : ./index.php?lvl=notice_display&id=80624 [article] Descriptive pilot study of vividness and temporal equivalence during motor imagery training after quadriplegia [texte imprimé] / Sébastien Mateo ; Karen T. Reilly ; Christian Collet ; Gilles Rode . - 2018 . - p. 300-308. Doi : 10.1016/j.rehab.2018.06.003 Langues : Anglais (eng) in Annals of physical and rehabilitation medicine > Vol. 61, n°5 (Septembre 2018) . - p. 300-308 Mots-clés : Mental practice  Tetraplegia  Tenodesis grasp  Rehabilitation  Vividness  Mental chronometry Résumé : Background Motor imagery (MI) training is often used to improve physical practice (PP), and the functional equivalence between imagined and practiced movements is widely considered essential for positive training outcomes. Objective We previously showed that a 5-week MI training program improved tenodesis grasp in individuals with C6–C7 quadriplegia. Here we investigated whether functional equivalence changed during the course of this training program. Methods In this descriptive pilot study, we retrospectively analyzed data for 6 individuals with C6–C7 quadriplegia (spinal cord injured [SCI]) and 6 healthy age-matched controls who trained for 5 weeks in visual and kinesthetic motor imagery or visualization of geometric shapes (controls). Before training, we assessed MI ability by using the Kinesthetic and Visual Imagery Questionnaire (KVIQ). We analyzed functional equivalence by vividness measured on a visual analog scale (0–100) and MI/PP time ratios computed from imagined and physically practiced movement durations measured during MI training. These analyses were re-run considering that half of the participants with quadriplegia were good imagers and the other half were poor imagers based on KVIQ scores. To investigate generalization of training effects, we analyzed MI/PP ratios for an untrained pointing task before (3 baseline measures), immediately after, and 2 months after training. Results During MI training, imagery vividness increased significantly. Only the good imagers evolved toward temporal equivalence during training. Good imagers were also the only participants who showed changes in temporal equivalence on the untrained pointing task. Conclusion This is the first study reporting improvement in functional equivalence during an MI training program that improved tenodesis grasp in individuals with C6–C7 quadriplegia. We recommend that clinical MI programs focus primarily on vividness and suggest that feedback about movement duration could potentially improve temporal equivalence, which could in turn lead to further improvement in PP. Permalink : ./index.php?lvl=notice_display&id=80624

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L5-S1 Charcot spine induced by diffuse idiopathic skeletal hyperostosis in chronic tetraplegia: 2 cases / Damien Riquier in Annals of physical and rehabilitation medicine, Vol. 62, n°2 (Mars 2019)  

Public ISBD [article]  inAnnals of physical and rehabilitation medicine > Vol. 62, n°2 (Mars 2019) . - p. 132-134 Titre : L5-S1 Charcot spine induced by diffuse idiopathic skeletal hyperostosis in chronic tetraplegia: 2 cases Type de document : texte imprimé Auteurs : Damien Riquier ; André Basch ; Sophie Jacquin-Courtois ; François Cotton ; Gilles Rode Année de publication : 2019 Article en page(s) : p. 132-134 Note générale : https://doi.org/10.1016/j.rehab.2018.06.002 Langues : Anglais (eng) Mots-clés : Charcot spine  Neuropathic spinal arthropathy  Diffuse idiopathic skeletal hyperostosis  Hyperostosis vertebral ankyloses  Autonomic dysreflexia Résumé : Charcot spine, or spinal neuroarthropathy, is a rare and underestimated arthropathy occurring in the setting of neurological impairment [1] like spinal cord injury [2]. It is characterized by disc and vertebral degeneration followed by massive bone formation of the articulation that can mimic infective spondylitis or vertebral tumor [3]. It results in impaired joint innervation with loss of proprioception and sensitivity to pain, associated with repeated microtraumas due to instability [4]. It can cause mechanical low back pain, spinal deformation, audible noises, and altered neurological function including spasticity or autonomic dysfunction [5]. En ligne : https://www.sciencedirect.com/science/article/pii/S187706571831399X Permalink : ./index.php?lvl=notice_display&id=84108 [article] L5-S1 Charcot spine induced by diffuse idiopathic skeletal hyperostosis in chronic tetraplegia: 2 cases [texte imprimé] / Damien Riquier ; André Basch ; Sophie Jacquin-Courtois ; François Cotton ; Gilles Rode . - 2019 . - p. 132-134. https://doi.org/10.1016/j.rehab.2018.06.002 Langues : Anglais (eng) in Annals of physical and rehabilitation medicine > Vol. 62, n°2 (Mars 2019) . - p. 132-134 Mots-clés : Charcot spine  Neuropathic spinal arthropathy  Diffuse idiopathic skeletal hyperostosis  Hyperostosis vertebral ankyloses  Autonomic dysreflexia Résumé : Charcot spine, or spinal neuroarthropathy, is a rare and underestimated arthropathy occurring in the setting of neurological impairment [1] like spinal cord injury [2]. It is characterized by disc and vertebral degeneration followed by massive bone formation of the articulation that can mimic infective spondylitis or vertebral tumor [3]. It results in impaired joint innervation with loss of proprioception and sensitivity to pain, associated with repeated microtraumas due to instability [4]. It can cause mechanical low back pain, spinal deformation, audible noises, and altered neurological function including spasticity or autonomic dysfunction [5]. En ligne : https://www.sciencedirect.com/science/article/pii/S187706571831399X Permalink : ./index.php?lvl=notice_display&id=84108

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Optic ataxia in Bálint-Holmes syndrome / Laure Pisella in Annals of physical and rehabilitation medicine, Vol. 60, n° 3 (June 2017)

Public ISBD [article]  inAnnals of physical and rehabilitation medicine > Vol. 60, n° 3 (June 2017) . - p. 148-154 Titre : Optic ataxia in Bálint-Holmes syndrome Type de document : texte imprimé Auteurs : Laure Pisella, Auteur ; Yves Rossetti, Auteur ; Gilles Rode, Auteur Année de publication : 2017 Article en page(s) : p. 148-154 Langues : Anglais (eng) Français (fre) Mots-clés : Cerveau  Optic ataxia,Posterior parietal cortex,Dorsal attentional network Résumé : The objective of this review is to reinstate the diversity of visual perception and visuomotor symptoms following lesions to the posterior parietal cortex (dorsal visual stream). This diversity was overshadowed for a long time and shows the contribution of the dorsal visual stream not only to action but also to perception. More precisely, we propose that the visuomotor deficit in optic ataxia stems from two distinct components: visual proprioceptive deficit (hand effect) and visual attentional deficit (field effect) also affecting the perception in peripheral vision. Permalink : ./index.php?lvl=notice_display&id=51682 [article] Optic ataxia in Bálint-Holmes syndrome [texte imprimé] / Laure Pisella, Auteur ; Yves Rossetti, Auteur ; Gilles Rode, Auteur . - 2017 . - p. 148-154. Langues : Anglais (eng) Français (fre) in Annals of physical and rehabilitation medicine > Vol. 60, n° 3 (June 2017) . - p. 148-154 Mots-clés : Cerveau  Optic ataxia,Posterior parietal cortex,Dorsal attentional network Résumé : The objective of this review is to reinstate the diversity of visual perception and visuomotor symptoms following lesions to the posterior parietal cortex (dorsal visual stream). This diversity was overshadowed for a long time and shows the contribution of the dorsal visual stream not only to action but also to perception. More precisely, we propose that the visuomotor deficit in optic ataxia stems from two distinct components: visual proprioceptive deficit (hand effect) and visual attentional deficit (field effect) also affecting the perception in peripheral vision. Permalink : ./index.php?lvl=notice_display&id=51682

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Semiology of neglect: An update / Gilles Rode in Annals of physical and rehabilitation medicine, Vol. 60, n° 3 (June 2017)

Public ISBD [article]  inAnnals of physical and rehabilitation medicine > Vol. 60, n° 3 (June 2017) . - p. 177-185 Titre : Semiology of neglect: An update Type de document : texte imprimé Auteurs : Gilles Rode, Auteur ; Laure Huchon, Auteur ; Chiara Pagliari, Auteur Année de publication : 2017 Article en page(s) : p. 177-185 Langues : Anglais (eng) Français (fre) Mots-clés : Symptôme neurologique  Système nerveux [pathologie]  Sémiologie  Neglect,Hemineglect,Unilateral spatial neglect,Sensory neglect,Motor neglect,Egocentric neglect,Allocentric neglect,Personal neglect,Extrapersonal neglect,Representational neglect Résumé : Hemispatial neglect is a common disabling condition following brain damage to the right hemisphere. Generally, it involves behavioral bias directed ipsilaterally to the damaged hemisphere and loss of spatial awareness for the contralesional side. In this syndrome, several clinical subtypes were identified. The objective of this article is to provide a nosological analysis of the recent data from the literature on the different subtypes of neglect (visual, auditory, somatosensory, motor, egocentric, allocentric and representational neglect), associated ipsilesional and contralesional productive manifestations and their anatomical lesion correlates. These different anatomical-clinical subtypes can be associated or dissociated. They reflect the heterogeneity of this unilateral neglect syndrome that cannot be approached or interpreted in a single manner. We propose that these subtypes result from different underlying deficits: exogenous attentional deficit (visual, auditory neglect); representational deficit (personal neglect, representational neglect, hyperschematia); shift of the egocentric reference frame (egocentric neglect); attentional deficit between objects and within objects (allocentric neglect), endogenous attentional deficit (representational neglect) and transsaccadic working memory or spatial remapping deficit (ipsilesional productive manifestations). Taking into account the different facets of the unilateral neglect syndrome should promote the development of more targeted cognitive rehabilitation protocols. Permalink : ./index.php?lvl=notice_display&id=51692 [article] Semiology of neglect: An update [texte imprimé] / Gilles Rode, Auteur ; Laure Huchon, Auteur ; Chiara Pagliari, Auteur . - 2017 . - p. 177-185. Langues : Anglais (eng) Français (fre) in Annals of physical and rehabilitation medicine > Vol. 60, n° 3 (June 2017) . - p. 177-185 Mots-clés : Symptôme neurologique  Système nerveux [pathologie]  Sémiologie  Neglect,Hemineglect,Unilateral spatial neglect,Sensory neglect,Motor neglect,Egocentric neglect,Allocentric neglect,Personal neglect,Extrapersonal neglect,Representational neglect Résumé : Hemispatial neglect is a common disabling condition following brain damage to the right hemisphere. Generally, it involves behavioral bias directed ipsilaterally to the damaged hemisphere and loss of spatial awareness for the contralesional side. In this syndrome, several clinical subtypes were identified. The objective of this article is to provide a nosological analysis of the recent data from the literature on the different subtypes of neglect (visual, auditory, somatosensory, motor, egocentric, allocentric and representational neglect), associated ipsilesional and contralesional productive manifestations and their anatomical lesion correlates. These different anatomical-clinical subtypes can be associated or dissociated. They reflect the heterogeneity of this unilateral neglect syndrome that cannot be approached or interpreted in a single manner. We propose that these subtypes result from different underlying deficits: exogenous attentional deficit (visual, auditory neglect); representational deficit (personal neglect, representational neglect, hyperschematia); shift of the egocentric reference frame (egocentric neglect); attentional deficit between objects and within objects (allocentric neglect), endogenous attentional deficit (representational neglect) and transsaccadic working memory or spatial remapping deficit (ipsilesional productive manifestations). Taking into account the different facets of the unilateral neglect syndrome should promote the development of more targeted cognitive rehabilitation protocols. Permalink : ./index.php?lvl=notice_display&id=51692

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Using eye movements to explore mental representations of space / Myriam Fourtassi in Annals of physical and rehabilitation medicine, Vol. 60, n° 3 (June 2017)

Public ISBD [article]  inAnnals of physical and rehabilitation medicine > Vol. 60, n° 3 (June 2017) . - p. 160-163 Titre : Using eye movements to explore mental representations of space Type de document : texte imprimé Auteurs : Myriam Fourtassi, Auteur ; Laure Pisella, Auteur ; Gilles Rode, Auteur Année de publication : 2017 Article en page(s) : p. 160-163 Langues : Anglais (eng) Français (fre) Mots-clés : Représentation  Vision  Oeil  Visual imagery,Ocular-tracking,Bi-dimensional regression,Mental representation of space Résumé : Visual mental imagery is a cognitive experience characterised by the activation of the mental representation of an object or scene in the absence of the corresponding stimulus. According to the analogical theory, mental representations have a pictorial nature that preserves the spatial characteristics of the environment that is mentally represented. This cognitive experience shares many similarities with the experience of visual perception, including eye movements. The mental visualisation of a scene is accompanied by eye movements that reflect the spatial content of the mental image, and which can mirror the deformations of this mental image with respect to the real image, such as asymmetries or size reduction. The present article offers a concise overview of the main theories explaining the interactions between eye movements and mental representations, with some examples of the studies supporting them. It also aims to explain how ocular-tracking could be a useful tool in exploring the dynamics of spatial mental representations, especially in pathological situations where these representations can be altered, for instance in unilateral spatial neglect. Permalink : ./index.php?lvl=notice_display&id=51698 [article] Using eye movements to explore mental representations of space [texte imprimé] / Myriam Fourtassi, Auteur ; Laure Pisella, Auteur ; Gilles Rode, Auteur . - 2017 . - p. 160-163. Langues : Anglais (eng) Français (fre) in Annals of physical and rehabilitation medicine > Vol. 60, n° 3 (June 2017) . - p. 160-163 Mots-clés : Représentation  Vision  Oeil  Visual imagery,Ocular-tracking,Bi-dimensional regression,Mental representation of space Résumé : Visual mental imagery is a cognitive experience characterised by the activation of the mental representation of an object or scene in the absence of the corresponding stimulus. According to the analogical theory, mental representations have a pictorial nature that preserves the spatial characteristics of the environment that is mentally represented. This cognitive experience shares many similarities with the experience of visual perception, including eye movements. The mental visualisation of a scene is accompanied by eye movements that reflect the spatial content of the mental image, and which can mirror the deformations of this mental image with respect to the real image, such as asymmetries or size reduction. The present article offers a concise overview of the main theories explaining the interactions between eye movements and mental representations, with some examples of the studies supporting them. It also aims to explain how ocular-tracking could be a useful tool in exploring the dynamics of spatial mental representations, especially in pathological situations where these representations can be altered, for instance in unilateral spatial neglect. Permalink : ./index.php?lvl=notice_display&id=51698

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