Useless, couldn't make heads or tails out of this. Impossible to summarize what my therapists should be doing with this to get me 100% recovered. At least with
the Margaret Yekutiel book about this from 2001, 'Sensory Re-Education of the Hand After Stroke', I could understand it.
Activation of Bilateral Secondary Somatosensory Cortex With Right Hand Touch Stimulation: A Meta-Analysis of Functional Neuroimaging Studies
Gemma Lamp1,2, 
Peter Goodin1, 
Susan Palmer1, 
Essie Low1,3,4, 
Ayla Barutchu1,5 and 
Leeanne M. Carey1,2*- 1Neurorehabilitation and Recovery, Florey Institute of Neuroscience and Mental Health, Melbourne Brain Centre, Heidelberg, VIC, Australia
- 2Occupational Therapy, School of Allied Health, La Trobe University, Bundoora, VIC, Australia
- 3Department of Neurology, Sunshine Hospital, Western Health, Melbourne, VIC, Australia
- 4Department of Psychology, Royal Adelaide Hospital, Adelaide, SA, Australia
- 5Balliol College, University of Oxford, Oxford, United Kingdom
Background: Brain regions involved in
processing somatosensory information have been well documented through
lesion, post-mortem, animal, and more recently, structural and
functional neuroimaging studies. Functional neuroimaging studies
characterize brain activation related to somatosensory processing; yet a
meta-analysis synthesis of these findings is currently lacking and
in-depth knowledge of the regions involved in somatosensory-related
tasks may also be confounded by motor influences.
Objectives: Our Activation Likelihood
Estimate (ALE) meta-analysis sought to quantify brain regions that are
involved in the tactile processing of the right (RH) and left hands (LH)
separately, with the exclusion of motor related activity.(So nothing in here is meant for survivor rehab? Good to know that your research has nothing useful for survivors. Under my leadership this would never get funding. Survivors are the one and only reason for stroke research. )
Methods: The majority of studies (n
= 41) measured activation associated with RH tactile stimulation. RH
activation studies were grouped into those which conducted whole-brain
analyses (n = 29) and those which examined specific regions of interest (ROI; n = 12). Few studies examined LH activation, though all were whole-brain studies (N = 7).
Results: Meta-analysis of brain
activation associated with RH tactile stimulation (whole-brain studies)
revealed large clusters of activation in the left primary somatosensory
cortex (S1) and bilaterally in the secondary somatosensory cortex (S2;
including parietal operculum) and supramarginal gyrus (SMG), as well as
the left anterior cingulate. Comparison between findings from RH
whole-brain and ROI studies revealed activation as expected, but
restricted primarily to S1 and S2 regions. Further, preliminary analyses
of LH stimulation studies only, revealed two small clusters within the
right S1 and S2 regions, likely limited due to the small number of
studies. Contrast analyses revealed the one area of overlap for RH and
LH, was right secondary somatosensory region.
Conclusions: Findings from the
whole-brain meta-analysis of right hand tactile stimulation emphasize
the importance of taking into consideration bilateral activation,
particularly in secondary somatosensory cortex. Further, the right
parietal operculum/S2 region was commonly activated for right and left
hand tactile stimulation, suggesting a lateralized pattern of
somatosensory activation in right secondary somatosensory region.
Implications for further research and for possible differences in right
and left hemispheric stroke lesions are discussed.
Pages more at the link if you want to try.
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