They look like brain to me too :D
You can probably look for care tips for a regular Mammilaria Elongata. They are super easy to grow!
If you are gonna keep it at home in winter, make sure she gets enough light and water very little and only when the soil is completely dry.
When it gets warmer you can probably keep it outside - cacti love fresh air, sun and rain (just don't keep them soaked all the time).
I can't wait to see yours bloom. I have a regular one, but those cristata forms can produce flowers along the edges which looks pretty cool :)
Thanks a lot! I will hope that it will bloom, and I will please you with good pictures, and of course I will be glad myself)