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The benefits of emotional stimuli in a virtual reality cognitive and motor rehabilitation task: assessing the impact of positive, negative and neutral stimuli with stroke patients
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Advisor(s)
Abstract(s)
VR-based methods for stroke rehabilitation have
mainly focused on motor rehabilitation, but there is increasing
interest towards the integration of cognitive training for
providing more ecologically valid solutions. However, more
studies are needed, especially in the definition of which type of
content should be used in the design of these tools. One possibility
is the use of emotional stimuli, which are known to enhance
attentional processes. According to the Socio-emotional
Selectivity Theory, as people age, this emotional salience arises
for positive and neutral, but not for negative stimuli. Conversely,
negative stimuli can be better remembered. In this study, we
investigated the impact of using emotional stimuli with positive,
negative and neutral valence in a VR cognitive and motor
attention task. Ten stroke patients participated in a within subjects experiment with four conditions based on the type of
stimuli: abstract (control condition), positive, negative and
neutral. The main task consisted of finding a target stimulus,
shown for only two seconds, among fourteen neutral distractors.
Eye movements were recorded with an eye-tracking system to
investigate differences between conditions and in search patterns.
Subsequently, a recall task took place and the patients had to
identify all the target images among a valence-matched number
of distractors. Our results corroborate the attention salience
effect of positive and neutral stimuli in the VR task performance.
Although we found no statistically significant differences between
conditions in the recall task, there was a trend for recalling more
negative images. This negative advantage comes at the expense of
significantly more wrongly identified images/false memories for
negative stimuli. Finally, we performed an analysis in which we
relate performance scores with well-established cognitive
assessment instruments, which supportsG the use of this
approach both for assessment and rehabilitation purposes.
Description
Keywords
Emotional stimuli Stroke Virtual reality Cognitive and motor rehabilitation . Faculdade de Ciências Exatas e da Engenharia
Citation
Faria, A. L., Cameirão, M. S., Paulino, T., & Bermúdez i Badia, S. (2015, June). The benefits of emotional stimuli in a virtual reality cognitive and motor rehabilitation task: assessing the impact of positive, negative and neutral stimuli with stroke patients. In 2015 International Conference on Virtual Rehabilitation (ICVR) (pp. 65-71). IEEE.
Publisher
IEEE