The FCC is looking into the matter separately from the FTC, but obviously, it's at least somewhat related.
When considering grey and white matter separately, anatomical studies in humans suggest that asymmetries in white matter within the KNOB region are associated with handedness.
Using new data for anthropoid primates, we estimated a scaling parameter close to the suggested 4/3 [4], [4] between the entire neopallial white and grey matter, and also between white and grey matter separately in the frontal and the non-frontal lobe.
By contrast, our comparison was on a per-subject and voxel-wise basis, and was performed for gray matter and white matter separately.
Then, MTR histograms were generated for grey matter and white matter separately according to a method described previously [ 23] using Statistical Parametric Mapping '99 (Wellcome Department of Cognitive Neurology, Institute of Neurology, London, UK [ 24]).
Binary masks were then produced for grey matter and white matter separately based on conservative thresholds to avoid partial voluming at tissue interfaces, and these binary masks were applied to the original MTR maps producing grey matter and white matter MTR maps.
A recent MTI study examining cerebral grey and white matter separately in SLE patients with a history of diffuse neuropsychiatric manifestations [ 23] identified MTR histogram abnormalities specifically in the grey matter, suggesting that neuronal injury is among the key factors in diffuse NPSLE.
Density determination with a gradient column permits the use of smaller samples, for example of cortex and white matter separately [ 40], however this parameter is not a true measurement of tissue water alone because it is influenced by lipid content [ 39].
After automated topology correction (Fischl et al., 2001; Segonne et al., 2007) the original surface was nudged to follow the white grey matter and, separately, grey matter – cerebrospinal fluid (CSF) intensity gradients, thus resulting in the white and pial surfaces, respectively.
We can address this issue separately, as is needed, but this statistic does in no way have any effect on what the Black Lives Matter movement is exposing.
