Effect of object substitution, spontaneous compensation and repetitive training on reaching movements in a patient with optic ataxia

Baumard, Josselin; Etcharry-Bouyx, Frédérique; Chauviré, Valérie; Boussard, Delphine; Lesourd, Mathieu; Remigereau, Chrystelle; Rossetti, Yves; Gall, Didier Le

doi:10.1080/09602011.2019.1607397

Cited by 3 publications

(2 citation statements)

References 82 publications

(117 reference statements)

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“…Treatment of optic ataxia has been reported with the use of repetitive training on reaching movements with alternating objects. 111 Several single-case studies and exploratory group studies have shown benefit in treatments tested for limb apraxia. 112,113 These remain to be tested in larger, randomized controlled trials.…”

Section: Behavioral Therapiesmentioning

confidence: 99%

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Limb Apraxias: The Influence of Higher Order Perceptual and Semantic Deficits in Motor Recovery After Stroke

Rounis

Binkofski

2023

Stroke

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Stroke is a leading cause of disability worldwide. Limb apraxia is a group of higher order motor disorders associated with greater disability and dependence after stroke. Original neuropsychology studies distinguished separate brain pathways involved in perception and action, known as the dual stream hypothesis. This framework has allowed a better understanding of the deficits identified in Limb Apraxia. In this review, we propose a hierarchical organization of this disorder, in which a distinction can be made between several visuomotor pathways that lead to purposeful actions. Based on this, executive apraxias (such as limb kinetic apraxia) cause deficits in executing fine motor hand skills, and intermediate apraxias (such as optic ataxia and tactile apraxia) cause deficits in reaching to grasp and manipulating objects in space. These disorders usually affect the contralesional limb. A further set of disorders collectively known as limb apraxias include deficits in gesture imitation, pantomime, gesture recognition, and object use. These deficits are due to deficits in integrating perceptual and semantic information to generate complex movements. Limb apraxias are usually caused by left-hemisphere lesions in right-handed stroke patients, affecting both limbs. The anterior- to posterior-axis of brain areas are disrupted depending on the increasing involvement of perceptual and semantic processes with each condition. Lower-level executive apraxias are linked to lesions in the frontal lobe and the basal ganglia, while intermediate apraxias are linked to lesions in dorso-dorsal subdivisions of the dorsal fronto-parietal networks. Limb apraxias can be caused by lesions in both dorsal and ventral subdivisions including the ventro-dorsal stream and a third visuomotor pathway, involved in body schema and social cognition. Rehabilitation of these disorders with behavioral therapies has aimed to either restore perceptuo-semantic deficits or compensate to overcome these deficits. Further studies are required to better stratify patients, using modern neurophysiology and neuroimaging techniques, to provide targeted and personalized therapies for these disorders in the future.

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Section: Behavioral Therapiesmentioning

confidence: 99%

“…Treatment of optic ataxia has been reported with the use of repetitive training on reaching movements with alternating objects. 111…”

Section: Pathways To Recoverymentioning

confidence: 99%

Limb Apraxias: The Influence of Higher Order Perceptual and Semantic Deficits in Motor Recovery After Stroke

Rounis

Binkofski

2023

Stroke

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Kurzfassung der S2k-Leitlinie „Diagnostik und Therapie von Neglect und anderen Störungen der Raumkognition“ (AWMF-030/126)

Karnath,

Schenk,

Benke

et al. 2023

Zeitschrift für Neuropsychologie

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Zusammenfassung: In der neu überarbeiteten Leitlinie wurde das bewährte Explorationstraining bei der Behandlung des Neglects durch Vorschläge zum therapeutischen Vorgehen für verschiedene Schweregrade des Neglects und eine damit einhergehende zeitliche Reduktion ergänzt. Darüber hinaus erfährt es derzeit interessante Erweiterungen durch den Einsatz von „Augmented Reality“- und von „Virtual Reality“-Verfahren. Weiterhin empfohlen zur Behandlung des Neglects wird das Training mittels langsamer Folgebewegungen zur kontralateralen Seite und mittels Nackenmuskelvibration. Unter den nichtinvasiven transkraniellen Hirnstimulationsverfahren hat sich das kontinuierliche Theta-Burst Stimulation (cTBS) -Protokoll in Bezug auf die Neglectsymptomatik als wirksam erwiesen, wenn es mit mindestens einem weiteren Trainingsverfahren (z. B. Explorationstraining) kombiniert wurde. Zur Behandlung des Pusher-Syndroms wurden Visuelles-Feedback-Training und robotergestütztes Laufbandtraining von unterschiedlichen Gruppen erfolgreich eingesetzt. Die Situation ist problematischer bei jenen Verfahren, die zur Behandlung der weiteren in der Leitlinie besprochenen Störungen der Raumkognition (Bálint-Syndrom, Simultanagnosie, optische Ataxie, Störungen der visuell-räumlichen Wahrnehmung, visuokonstruktive Störungen, topografische Störungen) eingesetzt werden. Hier dominieren Einzelfall- bzw. Kleingruppenstudien. Die Auswertung einzelner methodisch hochwertiger und gut dokumentierter Therapiestudien bietet derzeit die einzige Grundlage zur Ableitung von Empfehlungen für die Behandlung dieser Gruppe von Störungen der Raumkognition.

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Integrating visual search, eye movement training and reversing prism exposure in the treatment of Balint-Holmes syndrome: a single case report

Panico

Arini²,

Cantone³

et al. 2021

Topics in Stroke Rehabilitation

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Effect of object substitution, spontaneous compensation and repetitive training on reaching movements in a patient with optic ataxia

Cited by 3 publications

References 82 publications

Limb Apraxias: The Influence of Higher Order Perceptual and Semantic Deficits in Motor Recovery After Stroke

Limb Apraxias: The Influence of Higher Order Perceptual and Semantic Deficits in Motor Recovery After Stroke

Kurzfassung der S2k-Leitlinie „Diagnostik und Therapie von Neglect und anderen Störungen der Raumkognition“ (AWMF-030/126)

Integrating visual search, eye movement training and reversing prism exposure in the treatment of Balint-Holmes syndrome: a single case report

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