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Functional Transcranial Doppler Ultrasound for Monitoring Cerebral Blood Flow
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Measuring cerebral hemodynamic changes during action observation with functional transcranial doppler.
Seong-Sik Kim1, Byoung-Hee Lee1
1Department of Physical Therapy, Sahmyook University: 815 Hwarang-ro, Nowon-gu, Seoul 139-742, Republic of Korea.
Journal of Physical Therapy Science
|July 10, 2015
Summary
Action observation training (AOT) significantly increases cerebral blood flow velocity and volume in healthy individuals. This suggests AOT enhances brain metabolic demand and blood supply.
Area of Science:
- Neuroscience
- Physiology
Background:
- Action observation training (AOT) involves watching movements, potentially influencing brain activity.
- Cerebral hemodynamics, including cerebral blood flow velocity (CBFV) and cerebral blood flow volume (CBFvol), are crucial indicators of brain function.
Purpose of the Study:
- To investigate the impact of AOT on cerebral hemodynamic parameters in healthy subjects.
- To quantify changes in CBFV and CBFvol following AOT.
Main Methods:
- Fifteen healthy subjects underwent AOT.
- Cerebral blood flow velocity (systolic peak velocity [Vs] and mean flow velocity [Vm]) in the middle cerebral artery (MCA), anterior cerebral artery (ACA), and posterior cerebral artery (PCA) was measured using functional transcranial doppler before and after AOT.
Main Results:
- Significant increases in Vs and Vm were observed in the MCA, ACA, and PCA after AOT compared to baseline measurements.
- These findings indicate a measurable change in cerebral hemodynamics due to AOT.
Conclusions:
- Action observation training positively affects cerebral hemodynamics by increasing CBFV and CBFvol in healthy individuals.
- The observed increases in cerebral blood flow suggest an elevated metabolic demand in the brain during AOT.
