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Of or relating to the cerebral cortex and the spinal cord.
References in periodicals archive ?
Regeneration-enhancing effects of EphA4 blocking peptide following corticospinal tract injury in adult rat spinal cord.
NSI-566 was observed to extend hundreds of thousands of axons long distances from the graft site which appear to form synaptic connections with host neurons, including motor neuron populations; Host corticospinal axons regenerate into the NSI-566 graft; Grafting of NSI-566 led to a measurable improvement in forelimb function in injured animals.
Hot cross bun sign refers to the cruciform shaped pontine T2 hyperintensity in multiple system atrophy due to selective loss of myelinated transverse pontocerebellar fibers and neurons in the pontine raphe and sparing of the pontine tagmentum and corticospinal tracts.
Both motor learning processes and the effect of proprioceptive and cutaneous afferent signals on corticospinal excitability can be studied using electrophysiological methods.
6] Typical patterns of brain involvement in NMOSD, although not pathognomonic, include lesions of the dorsal medulla/area postrema, periependymal regions in the brainstem, diencephalic structures, or cerebral hemispheres or long lesions spanning much of the corpus callosum or corticospinal tracts, corresponding to regions of high AQP4 expression.
027 DTI, diffusion tensor imaging; MNI, Montreal neurological institute; FWE, family-wise error; SLF, superior longitudinal fasciculus; ATR, anterior thalamic radiation; CST, corticospinal tract.
In their study, Perez and her co-authors, departmental colleagues Jinyi Long, PhD, and Paolo Federico, PhD, used 180 pairs of noninvasive transcranial magnetic stimulation for 30 minutes over the hand representation of the primary motor cortex at an interstimulus interval, which is the time interval between the termination of one stimulus and the beginning of another, mimicking the rhythm of descending late indirect (I) waves in corticospinal neurons or at an interstimulus interval in between I-waves as a control protocol.
It is proposed that cortical myoclonus arises from abnormal excitation of corticospinal output, as suggested by following: (1) cortical myoclonus shows a time-locked premyoclonus EEG discharge reflecting apical dendrite excitation of pyramidal neurons; (2) myoclonus event latency is consistent with pyramidal tract conduction.
T2-weighted FLAIR images show hyperintense signals along the corticospinal tract and diffuse increases in white-matter signal intensities in the cerebral hemispheres (Rovira et al.
2016) Functional assessment of corticospinal system excitability in karate athletes.