Fig. 1

Willingness to use three neural stem cell (NSC) sources. a Sources of NSCs were presented to participants with the aid of schematic diagrams, created using images sourced from Biorender.com. Participants were asked about b their willingness to use these three NSC sources (fetal, n = 224; embryonic, n = 222; induced pluripotent stem cell (iPSC), n = 219) to treat CP in themselves or their child/person they care for and c whether they have ethical concerns about these cell sources. If they responded with ‘yes’ to ethical concerns, they were prompted to list their ethical concerns. Ethical concerns were then analyzed using content analysis, with categories of ethical concerns shown d. Categories of ethical concerns were raised for different combinations of cell types, indicated by the right column titled ‘cell source.’