Substantia nigra echomorphology in the healthy very old: Correlation with motor slowing. - Stefanie Behnke; Kay L. Double; Stephen R. Duma; G. Anthony Broe; V. Guenther; G. Becker; G. M. Halliday (NeuroImage, 2007)

Hyperechogenicity of the substantia nigra in healthy controls is related to MRI changes and to neuronal loss as determined by F-Dopa PET. - Stefanie Behnke; U. Schroeder; U. Dillmann; Hans-Georg Buchholz; Mathias Schreckenberger; G. Fuss; W. Reith; Daniela Berg; Christoph M. Krick (NeuroImage, 2009)

Substantia nigra echomorphology and motor cortex excitability. - Gabrielle Todd; Janet L. Taylor; D. Baumann; J. E. Butler; Stephen R. Duma; Michael Hayes; Francine Carew-Jones; Olivier Piguet; Stefanie Behnke; Michael C. Ridding; Daniela Berg; Kay L. Double (NeuroImage, 2010)