SOD1 and amyotrophic lateral sclerosis: In Fig. 6, the SOD1 fALS cervical cords and sALS thoracic cords have higher 50% ThT fluorescence and stronger dependence on lag phase (i.e., more negative slope values) relative to cervical cords of sALS and C9ORF72 patients, suggesting the former two ALS specimen types may have SOD1 seeds that better accommodate binding of ThT.