SOD1 and amyotrophic lateral sclerosis: As expected, we see a similar relationship between ALS spinal neural tissue dilution and lag phase here, as well as a strong negative correlation between lag phase and 50% ThT fluorescence for SOD1 fALS cervical cords (R = 0.88), C9ORF72 fALS cervical cords (R = 0.85), and sporadic ALS thoracic cords (R = 0.84).