Kuvult: The Gemara suggests that the Shichvas Zera of a Nochri has different properties from that of a Jew, since the Nochri eats non-Kosher foods and is physically affected by his diet. The Chasam Sofer (Teshuvos YD 175) writes that this Gemara is relevant in practice. He rules that we cannot assume that a medical treatment that was tested successfully on a Nochri will also be successful on a Jew.
What that means is that you can’t automatically assume how a Goy reacts to a treatment will also be how a Jew reacts to it. It doesn’t necessarily either automatically imply that it won’t work for a Jew.
Rav Elyashev pointed out that the Chasam Sofer writes that the physical characteristics of a Yid are different than a Goy, and that what applies to one may not apply to the other. Therefore, said Rav Elyashev, how much more so regarding the mind/soul?