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Substantia nigra echomorphology and motor cortex excitability

G. Todd, J.L. Taylor, D. Baumann, J.E. Butler, S.R. Duma, M. Hayes, F. Carew-Jones, O. Piguet, S. Behnke, M.C. Ridding, D. Berg, K.L. Double
<span title="">2010</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="" style="color: black;">NeuroImage</a> </i> &nbsp;
The aim of our study was to investigate the relation between substantia nigra (SN) echomorphology and indices of motor cortex excitability.  ...  Nigral hyperechogenicity in healthy individuals is thought to represent an SN abnormality or predisposition to Parkinson's disease (PD) and its prevalence is greater in the very old.  ...  An association between SN hyperechogencity and subtle motor dysfunction has also been reported in healthy very aged individuals (86-95 years: Behnke et al., 2007) and signs of motor slowing are more  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="">doi:10.1016/j.neuroimage.2010.01.088</a> <a target="_blank" rel="external noopener" href="">pmid:20117219</a> <a target="_blank" rel="external noopener" href="">fatcat:svskhfgnpff7lecvrtbbzbgcpm</a> </span>
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