Effect of thinking on intracranial blood flow velocities.
OBJECTIVE
To determine the effect of thinking on intracranial blood flow velocities.


METHODS
Transcranial Doppler (TCD) was used to measure the blood flow velocities of the cerebral arteries, when 10 normal persons were at rest and during thinking.


RESULTS
The mean flow velocities (MFVs) of the cerebral arteries during thinking were significantly higher than those at rest, especially in the MCA and ACA. The MFVs were raised from between 10.3% to 14.3%.


CONCLUSIONS
Thinking can increase the blood flow velocities of cerebral arteries significantly.
Tian
F
F
Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, China. neurogxm@public.cs.hn.cn
Ouyang
S
S
Yang
Q
Q
D001783:Blood Flow Velocity; D002560:Cerebrovascular Circulation; D006801:Humans; D013850:Thinking / Q000502:physiology*