A kinesthetic motor imagery study in patients with writer' cramp

Tumas, Vítor; Sakamoto, Américo Ceiki

doi:10.1590/s0004-282x2009000300005

Cited by 8 publications

(5 citation statements)

References 28 publications

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“…With regards to explicit motor imagery, patients with focal hand dystonia appear to be slower than healthy controls during the imagination of writing and tapping movements (Tumas and Sakamoto, 2009).…”

Section: Cognitive Representation Of Movementmentioning

confidence: 96%

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Sensory-motor integration in focal dystonia

et al. 2015

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Traditional definitions of focal dystonia point to its motor component, mainly affecting planning and execution of voluntary movements. However, focal dystonia is tightly linked also to sensory dysfunction. Accurate motor control requires an optimal processing of afferent inputs from different sensory systems, in particular visual and somatosensory (e.g., touch and proprioception). Several experimental studies indicate that sensory-motor integration - the process through which sensory information is used to plan, execute, and monitor movements - is impaired in focal dystonia. The neural degenerations associated with these alterations affect not only the basal ganglia-thalamic-frontal cortex loop, but also the parietal cortex and cerebellum. The present review outlines the experimental studies describing impaired sensory-motor integration in focal dystonia, establishes their relationship with changes in specific neural mechanisms, and provides new insight towards the implementation of novel intervention protocols. Based on the reviewed state-of-the-art evidence, the theoretical framework summarized in the present article will not only result in a better understanding of the pathophysiology of dystonia, but it will also lead to the development of new rehabilitation strategies.

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Section: Cognitive Representation Of Movementmentioning

confidence: 96%

“…Different paradigms have been used to study cognitive representation of movement, such as explicit motor imagery (Delnooz et al, 2013;Delnooz et al, 2012;Tumas and Sakamoto, 2009), mental rotation of body parts Fiorio et al, 2006; and temporal expectation of movements outcome (Table. 1).…”

Section: Cognitive Representation Of Movementmentioning

confidence: 99%

Sensory-motor integration in focal dystonia

et al. 2015

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“…Motor imagery often accurately simulates the time taken to execute actions across a variety of tasks, including pointing (Decety & Michel, 1989; Watson & Rubin, 1996), writing (Papaxanthis, Pozzo, Skoura, & Schieppati, 2002; Tumas & Sakamoato, 2009), locomotion (Saimpont, Malouin, Tousignant, & Jackson, 2012) and sporting activities (MacIntyre & Moran, 1996; Oishi, Kasai, & Maeshima, 2000). Motor imagery and overt actions show similar effects of various cognitive variables such as word labels and visual illusions (Glover, Dixon, Castiello, & Rushworth, 2005; Glover & Dixon, 2013), and both generally adhere to Fitts’ Law (Cerritelli, Maruff, Wilson, & Currie, 2000; Decety & Jeannerod, 1995; Macuga & Frey, 2014; Macuga, Papailiou, & Frey, 2012; Maruff, Wilson, De Fazio, Cerritelli, Hedt, & Currie, 1999; Sirigu et al, 1995; but see Young, Pratt, & Chau, 2008).…”

Section: Behavioral Evidence Favors the Motor-cognitive Modelmentioning

confidence: 99%

The motor-cognitive model of motor imagery: Evidence from timing errors in simulated reaching and grasping.

Glover¹,

Баран²

2017

Journal of Experimental Psychology: Human Perception and Perfor

124

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Motor imagery represents an important but theoretically underdeveloped area of research in psychology. The motor-cognitive model of motor imagery was presented, and contrasted with the currently prevalent view, the functional equivalence model. In 3 experiments, the predictions of the two models were pitted against each other through manipulations of task precision and the introduction of an interference task, while comparing their effects on overt actions and motor imagery. In Experiments 1a and 1b, the motor-cognitive model predicted an effect of precision whereby motor imagery would overestimate simulated movement times when a grasping action involved a high level of precision; this prediction was upheld. In Experiment 2, the motor-cognitive model predicted that an interference task would slow motor imagery to a much greater extent than it would overt actions; this prediction was also upheld. Experiment 3 showed that the effects observed in the previous experiments could not be due to failures to match the motor imagery and overt action tasks. None of the above results were explainable by either a strong version of the functional equivalence model, or any reasonable adaptations thereof. It was concluded that the motor-cognitive model may represent a theoretically viable advance in the understanding of motor imagery. (PsycINFO Database Record

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“…Some data described the effects of FHD on motor imagery of different movements. In particular, in order to understand whether the physical impairments due to FHD generally or specifically influence the characteristics of mental imagery, patients suffering from writer’s cramp were asked to physically perform and mentally imagine finger tapping and writing (Tumas and Sakamoto, 2009). Surprisingly, with respect to healthy controls, patients had longer motor imagery latencies for both actions, suggesting that FHD would lead to unspecific deficits in mental imagery of complex movements.…”

Section: Mental Imagery and Rotation As “Clean” Tools To Investigate mentioning

confidence: 99%

Focal dystonia and the Sensory-Motor Integrative Loop for Enacting (SMILE)

Perruchoud

Murray

Lefebvre

et al. 2014

Front. Hum. Neurosci.

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Performing accurate movements requires preparation, execution, and monitoring mechanisms. The first two are coded by the motor system, the latter by the sensory system. To provide an adaptive neural basis to overt behaviors, motor and sensory information has to be properly integrated in a reciprocal feedback loop. Abnormalities in this sensory-motor loop are involved in movement disorders such as focal dystonia, a hyperkinetic alteration affecting only a specific body part and characterized by sensory and motor deficits in the absence of basic motor impairments. Despite the fundamental impact of sensory-motor integration mechanisms on daily life, the general principles of healthy and pathological anatomic–functional organization of sensory-motor integration remain to be clarified. Based on the available data from experimental psychology, neurophysiology, and neuroimaging, we propose a bio-computational model of sensory-motor integration: the Sensory-Motor Integrative Loop for Enacting (SMILE). Aiming at direct therapeutic implementations and with the final target of implementing novel intervention protocols for motor rehabilitation, our main goal is to provide the information necessary for further validating the SMILE model. By translating neuroscientific hypotheses into empirical investigations and clinically relevant questions, the prediction based on the SMILE model can be further extended to other pathological conditions characterized by impaired sensory-motor integration.

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A kinesthetic motor imagery study in patients with writer' cramp

Cited by 8 publications

References 28 publications

Sensory-motor integration in focal dystonia

Sensory-motor integration in focal dystonia

The motor-cognitive model of motor imagery: Evidence from timing errors in simulated reaching and grasping.

Focal dystonia and the Sensory-Motor Integrative Loop for Enacting (SMILE)

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