Relationships Between Cerebral Perfusion and Electrical Activity in Man
Flow thresholds for synaptic transmission have been demonstrated in basic studies in baboons (3, 4). In man, we have also found a threshold relationship between (a) prolongation of the central conduction time (CCT), defined as the time interval between the arrival of the impulse at the C2 level and at the somatosensory cortex, and (b) the hemispheric CBF measured by a simple two-channel system (6): at a flow value below 30 ml/100 g/min, CCT was significantly prolonged in proportion to the reduction in CBF.
KeywordsInternal Carotid Artery Middle Cerebral Artery Middle Cerebral Artery Occlusion Intracranial Aneurysm Cortical Response
Unable to display preview. Download preview PDF.
- 3.Branston NM, Symon L, Crockard HA, Pasztor E (1974) Relationship between the cortical evoked potential and local cortical blood flow following acute middle cerebral artery occlusion in the baboon.Google Scholar