Motor imagery in blind subjects: The influence of the previous visual experience

Imbiriba, Luís Aureliano; Rodrigues, Elisa da Conceição; Magalhães, José; Vargas, Claudia D.

doi:10.1016/j.neulet.2006.02.042

Cited by 28 publications

(23 citation statements)

References 23 publications

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“…With regard to the task familiarity, the congenitally blind subjects are able to perform visual MI, though made more errors. Imbiriba et al (2006) made similar conclusions for blind individuals. Thus, clearly there is conflicting information regarding the role of familiarity in the successfully using MI due to several definitions of terms such as "motor tasks" and "novelty".…”

Section: Factors That Influence On Motor Imagery Practicesupporting

confidence: 56%

Motor Imagery and Stroke Neurorehabilitation: An Overview of Basic Concepts and Therapeutic Effects

Abbas¹,

Lucas²,

Teixeira³

et al. 2011

American Journal of Neuroscience

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Problem statement: Motor Imagery (MI), which corresponds to an active process during which the representation of a specific action is internally reproduced into working memory without any motor output. It represents the result of conscious access to the content of a movement intention, which is usually performed unconsciously during movement preparation. Approach: This review study aims to provide information on the current research and main findings related to the potential therapeutic effects of motor imagery on stroke neurorehabilitation. Results: Several studies demonstrate that conscious motor imagery and unconscious motor preparation share common mechanisms and are functionally equivalent, improving recovery of motor skills in stroke patients. Conclusion: In conclusion, motor imagery, proved very useful and effective, with significant results in improvement of motor deficits in post stroke patients. Thus, it is recommended that further studies must be conducted to determine specific parameters such as number and weekly frequency, duration (minutes per session), type (visual or kinesthetic) and the appropriate moment to apply mental practice (phases recovery of pathology), in order to create specific protocols for each treatment phase.

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Section: Factors That Influence On Motor Imagery Practicesupporting

confidence: 56%

Motor Imagery and Stroke Neurorehabilitation: An Overview of Basic Concepts and Therapeutic Effects

Abbas¹,

Lucas²,

Teixeira³

et al. 2011

American Journal of Neuroscience

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“…The preservation of motor imagery vividness in the late blindness group can likely be explained by the preservation in memory of a mental representation of movement acquired prior to becoming functionally blind and the retrieval of visual aspects related to limb and body movements stored in memory. 26 Kinesthetic information, which is still available, further contributes to maintain movement representation. However, participants with late blindness not only maintained a good mental representation of movements, but showed a better performance than age-matched sighted individuals.…”

Section: Discussionmentioning

confidence: 99%

Effects of Practice, Visual Loss, Limb Amputation, and Disuse on Motor Imagery Vividness

Malouin

Richards

Durand³

et al. 2009

Neurorehabil Neural Repair

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“…Postnatally blind subjects permit an assessment of the possible contribution of some prior visual experience compared with congenitally blind subjects, who have never experienced visual feedback and have no memory of motor performance under visual guidance (Imbiriba et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Evidence for a Proprioception-Based Rapid On-Line Error Correction Mechanism for Hand Orientation during Reaching Movements in Blind Subjects

Gosselin-Kessiby

Kalaska²,

Messier³

2009

J. Neurosci.

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The contribution of visual experience to the perception and sensorimotor control of spatial orientation of the hand was investigated in blind subjects. In "orientation-matching" tasks, subjects aligned a match handle held in their right hand to a target handle held in their left hand and fixed in different orientations, with both arms outstretched. In "letter-posting" task 1, the same subjects reached out and simultaneously oriented their right hand to insert the match handle into a target slot fixed in the same range of orientations. Orientations were signaled proprioceptively by a reference handle held in the left hand. Final hand orientation errors were smaller when blind subjects simultaneously reached out and rotated their hand to insert the match handle into the target slot in letter-posting task 1 than when they held their arm extended and aligned the handles in the orientation-matching task. In letter-posting task 2, blind subjects first aligned their hand to the orientation of the target and then subsequently reached to the target with the instruction to not change hand orientation during reaching. Despite the instruction, subjects showed a reduction in absolute hand orientation error from the beginning to the end of the reach. In all tasks, performance of blind subjects was very similar to that of blindfolded normally sighted subjects. These findings provide the first evidence of an automatic on-line error-correction mechanism for hand orientation guided only by proprioceptive inputs during reaching in blind subjects, and reveal that the on-line mechanism does not depend on prior visual experience.

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Motor imagery in blind subjects: The influence of the previous visual experience

Cited by 28 publications

References 23 publications

Motor Imagery and Stroke Neurorehabilitation: An Overview of Basic Concepts and Therapeutic Effects

Motor Imagery and Stroke Neurorehabilitation: An Overview of Basic Concepts and Therapeutic Effects

Effects of Practice, Visual Loss, Limb Amputation, and Disuse on Motor Imagery Vividness

Evidence for a Proprioception-Based Rapid On-Line Error Correction Mechanism for Hand Orientation during Reaching Movements in Blind Subjects

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