Cerebral autoregulation (CA) refers to the properties of the brain vascular bed to maintain
cerebral perfusion despite changes in blood pressure (BP). Whereas classic studies have …

Blood flow (BF) increases with increasing exercise intensity in skeletal, respiratory, and
cardiac muscle. In humans during maximal exercise intensities, 85% to 90% of total cardiac …

Carbon dioxide is a potent cerebral vasodilator. We have identified a significant source of
low-frequency variation in blood oxygen level-dependent (BOLD) magnetic resonance …

We investigated slow spontaneous oscillations in cerebral oxygenation in the human adult's
visual cortex. The rationale was (1) to demonstrate their detectability by near infrared …

The examination of blood flow velocity (BFV) changes during the performance of mental
tasks is one of the applications of transcranial Doppler (TCD) ultrasonography. The purpose …

A communication means is presented for patients with amyotrophic lateral sclerosis in totally
locked-in state who are completely unable to move any part of the body and have no usual …

Functional transcranial Doppler sonography (fTCD) allows the noninvasive and
uncomplicated registration of intracranial blood flow parameters under defined conditions of …

Functional transcranial Doppler sonography (fTCD) adds to the techniques of functional
imaging. fTCD measures cerebral perfusion changes related to neural activation in a way …

A substantial body of evidence supports the hypothesis of a vascular component in the
pathogenesis of Alzheimer's disease (AD). Cerebral hypoperfusion and blood-brain barrier …

Background and Purpose—Estimation of dynamic cerebral autoregulation from
spontaneous fluctuations of arterial blood pressure (ABP) and cerebral blood flow velocity …