Action observation and imagery reduce hemineglect
(2014) IONS phD Day — Location: UCL, Campus de Woluwe, 1200 Bruxelles, Belgique (24.November.2014)
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- Abstract
- Hemineglect significantly hinders the functional daily activities of patients. In the present study, we evaluated the efficacy of a new method for the rehabilitation of this condition using the Mirror Neuron System (MNS). The MNS shows co-activation by the execution, observation and imagination of actions. We aimed to investigate if action observation and imagination can prime attention in hemineglect. We tested five post-stroke patients with hemineglect. The study used a counterbalanced design. The experimental condition involved forty video clips of daily life actions starting in the center of the screen and then moving to the contralesional hemifield of the screen, and filmed from a first-person perspective. A white screen during which the patients had to imagine the actions they had just observed followed each clip. The control condition featured the same video clips as the experimental condition but flipped in a way that the actions were oriented to the ipsilesional hemifield. Each condition consisted of the viewing of the appropriate forty clips for four days in a row. The study lasted for four weeks, with five repeated measures of hemineglect severity across the period. All of the results were analyzed using single case 95% confidence interval analyses. Every patient showed a reduced hemineglect after the experimental condition on at least one measure, and this effect was absent or statistically lower in the control condition. In conclusion, the results from the study were encouraging for future research and for the development of potential clinical treatments for hemineglect rehabilitation.
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Montedoro, V., Grade, S., Coyette, F., Prairial, C., Ivanoiu, A., & Edwards, M. (2014). Action observation and imagery reduce hemineglect. IONS phD Day, UCL, Campus de Woluwe, 1200 Bruxelles, Belgique. https://hdl.handle.net/2078.5/215721