SOD1 and amyotrophic lateral sclerosis: For each ALS dataset type (i.e., cervical cords from SOD1 fALS patients, thoracic cords from sALS patients, cervical cords from sALS patients, cervical cords from C9ORF72 fALS patients), we used Eq. 3 to examine correlation between 50% ThT vs. lag phase.