Are the Homunculus of Alchemy related to Tulpas?

Many of you may have discovered the term "homunculus" (like myself as well) via the Full Metal Alchemist manga and anime series. As i have read from some sources, it is represented as a man in a bottle and is usually portrayed as an attempt to create other humans by humans themselves. Are they actually thoughtforms like Tulpas?

I think homuculus is a codeword for thoughtforms/egregore just like how metals are codeword for chakras.