Key result
Back tactile imagery is linked to ~5-fold higher SMR activation versus observation in stressed adults.
Why the study?
The effects of brain activation using sensory awareness, imagery, and observation in adults with psychological stress were not well understood.
Does sensory awareness and imagery increase the relative power of sensory motor rhythm in adults with psychological stress compared to observation?
Cross-Sectional (n=30)
No
Does sensory awareness and imagery increase the relative power of sensory motor rhythm in adults with psychological stress compared to observation?
Absolute Event Rate: 23.09% vs 4.66%
p-value: p=<0.001
Sensory awareness and imagery may be useful modalities for modulating brain activation in adults with psychological stress.
Small EEG study in stressed adults is preliminary; leaves open clinical relevance of sensory techniques.
[Purpose] The aim of the present study was to examine the effects of brain activation using sensory awareness, imagery, and observation in adults with psychological stress. [Participants and Methods] The participants of the study were 30 adults with psychological stress. They responded to questionnaires, including a stress response inventory. Data for brain activation were collected for sensory awareness, imagery, and observation using electroencephalography. To determine the neurological changes in the brain, this study analysed the relative power of sensory motor rhythm of the participants using electroencephalography. [Results] Results showed that the relative power of the sensory motor rhythm was significantly greater during awareness and imagery of sensory than during observation. [Conclusion] The results of this study suggest that awareness, imagery, and observation of sensation should be considered as useful modalities in people with psychological stress.
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Ahn et al. (2019) conducted a cross-sectional in Psychological stress (n=30). Sensory awareness and imagery (hand and back tactile sensation) vs. Observation of back tactile sensation for another person was evaluated on Sensory motor rhythm (SMR) relative power at C3 (p=<0.001). In adults with psychological stress, sensory motor rhythm activation was significantly higher during imagery of back tactile sensation compared to observation of another person.
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