Fig. 3: NMDA channel blockade is affected by Alzheimer’s disease in right parietal cortex.

The PEB posterior estimate of the expected value of the NMDA channel blockade parameter for each person with Alzheimer’s disease are shown. This NMDA-blockade parameter is re-estimated during the second-level PEB analysis. NMDA channel blockade (a) correlates with MMSE (posterior estimate of the second-level NMDA channel blockade parameter=0.06, posterior probability = 0.99) and (b) reduces further at follow-up compared to baseline (posterior estimate of the second-level NMDA blockade parameter = −0.125, posterior probability = 0.97). Lines are weighted by each subject’s average precision of NMDA blockade over sessions. MMSE mini-mental state examination, PEB parametric empirical Bayes.