Definition of subcortical in English:



  • 1Below the cortex.

    • ‘Imaging studies done 9 days after admission showed significant progression of his disease, with increased meningeal thickening and focal extension to the adjacent cortex and subcortical white mater.’
    • ‘Radiographic studies showed a collapse of the eighth vertebra and a subcortical defect on the inner surface of the distal end of the patient's left femur.’
    • ‘The lesions characteristically involve subcortical white matter, extending to the lower layers of the cortical ribbon.’
    • ‘The liver was exposed by midline and subcortical incisions.’
    • ‘Layers V and VI have particularly large pyramidal cells that project to subcortical centres, such as the spinal cord and thalamus.’
    • ‘Left frontal lesions, left lesions of the basal ganglia, and cortical and subcortical atrophy also are common.’
    • ‘Hallucinations occur in up to 20 percent of patients with Parkinson's disease; delusions, paranoia, and subcortical dementia also may occur.’
    • ‘The ratio of cortical arousal to subcortical activation was significantly smaller in the infants who died of SIDS than in the control infants during REM sleep.’
    • ‘Computed tomograms on days 0 and 8 after left subcortical haemorrhage presenting as a transient ischaemic attack with symptoms lasting 50 minutes.’
    • ‘Inattention, latency in recall, and lack of spontaneity frequently are encountered indicators of subcortical dementia, the intellectual impairment observed in NPH.’
    • ‘All of these results support a peripheral polyneuropathy with a possible cortical or subcortical involvement.’
    • ‘Baseline sleep states that preceded arousal or subcortical activation were established during 30-sccond time periods.’
    • ‘It is unclear why the death of the infants could not be prevented by the increased frequency in subcortical activation as measured in the victims of Sudden Infant Death Syndrome.’
    • ‘These structures can be found in both cortical and subcortical areas, although structures in the medial temporal lobes show the most dramatic accumulation of these abnormalities.’
    • ‘Fear responses do not require brain structures needed for consciousness and analytic thought but can be processed without conscious awareness by subcortical structures.’
    • ‘Axial transport of melanosomes in the dendritic arms of melanocytes is now recognized as another bidirectional dual transport system, containing microtubules near the central axis and subcortical actin filaments.’
    • ‘All the neural equipment you need to do ocular following and emotional responses is subcortical.’
    • ‘Lewis and his co-authors tend to unnecessarily bifurcate explicit rational insight (so-called cortical knowledge) and experiential learning (so-called subcortical knowledge).’
    • ‘It is the somatosensory system that provides the most compelling evidence for plasticity, with cortical and subcortical reorganisation, with limits to the latter.’
    • ‘The locus coeruleus is one of a number of subcortical loci involved in modulating cortical activity and awareness.’
    1. 1.1Anatomy Relating to or denoting the region of the brain below the cortex.
      • ‘Normal consciousness requires wakefulness or arousal activated in the brain stem and midbrain and awareness via the cerebral cortex and projections to and from subcortical brain areas.’
      • ‘Neuroimaging studies demonstrate that pain involves highly distributed processing in multiple cortical and subcortical regions.’
      • ‘Retrieval success produced a significant cluster of activation in the prefrontal cortex, the medial frontal gyrus, and several clusters in subcortical regions, most notably in the left medial temporal lobe.’
      • ‘At one month of age there is intensive activity in the cortical and subcortical regions that control sensory-motor functions.’
      • ‘These subcortical regions may then serve to signal other critical nodes, such as the hypothalamus, that modulate the body's hormonal internal milieu and cortical regions initiating motor action.’