Table 2

Data obtained from subjects in group II while they rested quietly but awake with their eyes closed

AreaxyzOEFPCBFPCMRO2P
AM 31/7−5−49401.0350.621.278*<0.00011.345*<0.0001
BL 40−53−39420.9030.040.8040.00420.756*0.003
CL 39/19−45−67360.9970.940.805*<0.00010.820*0.0004
DR 4045−57340.9940.770.9410.040.9570.11
EL lateral 8−2727401.0010.930.9640.050.9960.93
FL 8/9−1141420.7070.040.8930.030.7560.02
GR 8/9549360.8710.020.9260.150.8580.02
HL 9−1555260.9830.540.876*0.00020.878*0.0009
IL 10−195781.0420.060.9670.021.0120.61
JM 10−147−40.9840.361.187*<0.00011.166*<0.0001
KL 10/47−3345−61.0370.120.913*<0.00010.9640.27
LM 32331−100.9840.541.080*<0.00011.0610.03
ML 20−49−19−180.9620.350.865*<0.00010.8770.005
  • The values for OEF, CBF, and CMRO2 are expressed as local-to-global ratios (see Methods). For the 19 subjects in group II the global values for OEF and CBF (± SD) were 0.30 ± 0.09 (dimensionless) and 48 ± 10 ml/(min × 100 g), respectively. The mean arterial oxygen content for this group was 17.0 ± 0.02 ml/ml. From these data quantitative images of the CMRO2 were created that yielded a mean cerebral hemisphere value of 2.17 ± 0.41 ml/(min × 100 g) or 0.97 ± 0.17 μmol/(min × g). The asterisks denote values that differ significantly from the global mean after correction for multiple comparisons.