Update on apraxia

Gross, Rachel G.; Grossman, Murray

doi:10.1007/s11910-008-0078-y

Cited by 108 publications

(75 citation statements)

References 48 publications

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“…At the basis of ideational apraxia there would be amnesia for the use of objects, such as a disorder in recalling semantic memory of attributes relating to object use. In conclusion, ideational apraxia might not constitute a higherorder programming deficit of movement per se, but a combination of executive, language, and memory deficits or a diffuse reduction of cognitive resources (Gross and Grossman, 2008). Different lesion sites have been indicated as responsible for ideational apraxia, showing an involvement of mainly left temporo-parieto-occipital regions (Hécaen, 1972;Bolognini et al, 2015) even if patients with ideational apraxia have also been reported following frontal lesions, or basal ganglia damage (De Renzi e Lucchelli, 1988;Manuel et al, 2013;Huey et al, 2009).…”

Section: Introductionmentioning

confidence: 90%

Brain Activation Patterns Characterizing Different Phases of Motor Action: Execution, Choice and Ideation

et al. 2016

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Motor behaviour is controlled by a large set of interacting neural structures, subserving the different components involved in hierarchical motor processes. Few studies have investigated the neural substrate of higher-order motor ideation, i.e. the mental operation of conceiving a movement. The aim of this functional Magnetic Resonance Imaging (fMRI) study was to segregate the neural structures involved in motor ideation from those involved in movement choice and execution. An index finger movement paradigm was adopted, including three different conditions: performing a pre-specified movement, choosing and executing a movement and ideating a movement of choice.The tasks involved either the right or left hand, in separate runs. Neuroimaging results were obtained by comparing the different experimental conditions and computing conjunction maps of the right and left hands for each contrast. Pre-specified movement execution was supported by bilateral fronto-parietal motor regions, the cerebellum and putamen. Choosing and executing finger movement involved mainly left fronto-temporal areas and the anterior cingulate. Motor ideation activated almost exclusively left hemisphere regions, including the inferior, middle and superior frontal regions, middle temporal and middle occipital gyri. These findings show that motor ideation is controlled by a cortical network mainly involved in abstract thinking, cognitive and motor control, semantic and visual imagery processes.

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Section: Introductionmentioning

confidence: 90%

Brain Activation Patterns Characterizing Different Phases of Motor Action: Execution, Choice and Ideation

et al. 2016

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“…The MCA territory is an important area for motor function because it is comprised of the CST, the corticoreticulospinal tract and neural tracts which are related with apraxia [4,5,6,7,8,9,10,11,12,13,14,15,16]. In addition, the MCA occupies the largest area among the cerebral artery territories and has many branches.…”

Section: Resultsmentioning

confidence: 99%

“…That seems to be related to the characteristics of the MCA territory for motor function. The MCA territory comprises the corticospinal tract (CST) which is mandatory for fine motor activity of hand, the corticoreticulospinal tract which is involved in postural control and locomotor function, the corticofugal fibers which are responsible for limb-kinetic apraxia, and the anterior portion of superior longitudinal fasciculus which is related with ideomotor apraxia [4,5,6,7,8,9,10,11,12,13,14,15,16]. …”

Section: Introductionmentioning

confidence: 99%

Motor Recovery Mechanisms in Patients with Middle Cerebral Artery Infarct: A Mini-Review

Jang¹

2012

Eur Neurol

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Previous studies on the mechanisms of motor recovery in patients with middle cerebral artery (MCA) infarct except for the studies on cortical peri-infarct reorganization after primary motor cortex infarct were reviewed. Eight studies were classified and reviewed by the following four motor recovery mechanisms: contribution of premotor cortex, subcortical peri-infarct reorganization, ipsilateral motor pathway, and contribution of aberrant motor pathway. MCA infarct is the most common type among the arterial territory infarcts. In addition, MCA territory is important for motor function because it comprises the corticospinal tract, the corticoreticulospinal tract and the neural tracts which are related with apraxia (superior longitudinal fasciculus and corticofugal fibers from the premotor cortex). In spite of the significance of the MCA territory for motor function, fewer studies have reported on the mechanisms of motor recovery in MCA infarct compared to total number of studies about cerebral infarct. In addition, the majority of these studies have focused on the corticospinal tract. Therefore, the total number of studies on this topic should be increased. We believe that further studies comprising other neural tracts except for the corticospinal tract including the extrapyramidal tracts such as the corticoreticulospinal and neural tracts which are related with apraxia, are necessary.

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“…Those acts might be transitive (i.e. involving tools or multi-step actions, such as sawing a piece of wood or teeth brushing) or intransitive (e.g., pantomime of gestures and imitation tool use) (Gross et al, 2008). These two different subtypes of apraxia are classified separately -conceptual apraxia and ideomotor apraxia respectively, but might coincide together.…”

Section: Apraxia As a Stroke Consequencementioning

confidence: 99%

Use of Biological Motion based Cues and Ecological Sounds in the Neurorehabilitation of Apraxia

Bieńkiewicz

Goldenberg

Cogollor

et al. 2013

Proceedings of the International Conference on Health Informatics

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Abstract:Technological progress in the area of informatics and human interface platforms create a window of opportunities for the neurorehablitation of patients with motor impairments. The CogWatch project (www.cogwatch.eu) aims to create an intelligent assistance system to improve motor planning and execution in patients with apraxia during their daily activities. Due to the brain damage caused by cardiovascular incident these patients suffer from impairments in the ability to use tools, and to sequence actions during daily tasks (such as making breakfast). Based on the common coding theory (Hommel et al., 2001) and mirror neuron primate research (Rizzolatti et al., 2001) we aim to explore use of cues, which incorporate aspects of biological motion from healthy adults performing everyday tasks requiring tool use and ecological sounds linked to the action goal. We hypothesize that patients with apraxia will benefit from supplementary sensory information relevant to the task, which will reinforce the selection of the appropriate motor plan. Findings from this study determine the type of sensory guidance in the CogWatch interface. Rationale for the experimental design is presented and the relevant literature is discussed.

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Update on apraxia

Cited by 108 publications

References 48 publications

Brain Activation Patterns Characterizing Different Phases of Motor Action: Execution, Choice and Ideation

Brain Activation Patterns Characterizing Different Phases of Motor Action: Execution, Choice and Ideation

Motor Recovery Mechanisms in Patients with Middle Cerebral Artery Infarct: A Mini-Review

Use of Biological Motion based Cues and Ecological Sounds in the Neurorehabilitation of Apraxia

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