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. Author manuscript; available in PMC: 2023 Jul 11.
Published in final edited form as: Brain Res. 2022 Sep 20;1796:148097. doi: 10.1016/j.brainres.2022.148097

Table 1.

Changes due to tDCS in CBF, Yv and CMRO2.

Parameter PRE-tDCS (mean ± SD) DUR-tDCS (mean ± SD) POST-tDCS (mean ± SD) p-value (paired t-test)
PRE vs DUR DUR vs POST PRE vs POST
Global CBF (mL/100g/min) 53.67 ± 7.75 57.10 ± 8.33 56.79 ± 8.70 <0.0001**** 0.7475 0.0009***
Yv (%) 60.71 ± 4.12 60.96 ± 4.37 60.39 ± 4.66 0.6698 0.4887 0.7167
CMRO2 (μ mol/100g/min) 165.84 ± 25.32 175.68 ± 30.78 176.86 ± 28.58 0.0015** 0.7971 0.0150*

Notes: Comprehensive table of measurements for global cerebral blood flow (CBF), venous blood oxygenation (Yv) and calculated cerebral metabolic rate of oxygen (CMRO2). Interestingly, the elevated levels of CBF and CMRO2 due to tDCS persist even after the stimulation (post-tDCS).