Fig. 3. Neuronal counts, with animals group according to the total period of transcranial motor evoked potential (tcMEP) reduction. Three periods are shown: < 10 = tcMEP recovery within 10 min; 20–50 = tcMEP reduction between 20 and 50 min, after which recovery was observed; > 60 = tcMEP reduction for more than 60 min. The y-axis for the total number of eosinophilic neurons is shown on the right side of the diagram.