Your hospital should have thousands of hours of action observation videos, assuming they are competent. But no, they've been incompetent for 9 years,
action observation (121 posts to January 2013)
The Reaching Phase of Feeding and Self-Care Actions Optimizes Action Observation Effects in Chronic Stroke Subjects
Abstract
Background
The
Action Observation Therapy (AOT) is a well-established post-stroke
rehabilitation treatment based on the theoretical framework of the
Mirror Neuron System (MNS) activation. However, AOT protocols are still
heterogeneous in terms of video contents of observed actions.
Objective
The
aim of this study was to analyze electroencephalographic (EEG)
recordings in stroke patients during the observation of different videos
of task-specific upper limb movements, and to define which category of
actions can elicit a stronger cortical activation in the observer’s
brain.
Methods
Signals
were analyzed from 19 chronic stroke subjects observing customized
videos that represented 3 different categories of upper limb actions:
Finalized Actions, Non-Finalized Actions, and Control Videos. The
Event-Related Desynchronization in the µ and β bands was chosen to
identify the involvement of the cerebral cortex: the area of the
normalized power spectral density was calculated for each category and,
deepening, for the reaching and completion sub-phases of Finalized
Actions. For descriptive purposes, the time course of averaged signal
power was described. The Kruskal–Wallis test (P < .05) was applied.
Results
The
analysis showed a greater desynchronization when subjects observed
Finalized Actions with respect to Non-Finalized in all recorded areas;
Control videos provoked a synchronization in the same areas and
frequency bands. The reaching phase of feeding and self-care actions
evoked a greater suppression both in µ and β bands.
Conclusions
The
observation of finalized arm movements seems to elicit the strongest
activation of the MNS in chronic stroke patients. This finding may help
the clinicians to design future AOT-based stroke rehabilitation
protocols.
Clinical Trial Registration:
Clinical Trial Registration—URL: http://www.clinicaltrials.gov. Unique identifier: NCT04047134.
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