Is his oversimplification true to the original researchers findings or is he inserting unproven claims? What makes it pseudoscience and what author’s would you

Is his oversimplification true to the original researchers findings or is he inserting unproven claims? What makes it pseudoscience and what author’s would you recommend apart from the ones you already mentioned? Gazzaniga is featured on the documentary, is the documentary any good? What’s the real story here and what sources do you recommend for an outsider?