Cellular intelligence

I have heard Paul Stamets refer to a Japanese study in which a slime mold was able to negotiate a maze. The researchers referred to this as an example of "cellular intelligence". I am trying to locate that paper. Would some please direct me to the primary source? thanks.


slime mold in a maze

I think this is what you're looking for:

— Nakagaki, Toshiyuki 2001a "Smart behavior of true slime mold in a labyrinth". Research in Microbiology 152: 767-70
— Nakagaki, Toshiyuki, Hiroyasu Yamada, and Agotha Tóth 2000 "Maze-solving by an amoeboid organism". Nature 407: 470.
———. 2001. "Path finding by tube morphogenesis in an amoeboid orgamism".Biophysical Chemistry 92:47-52
— Nakagaki, Toshiyuki, Hiroyasu Yamada, and Masahiko Hara 2004 "Smart network solutions in an amoeboid organism" Biophysical Chemistry 107:1-5

This is from the bibliography of Jeremy Narby's "Intelligence in Nature" (Chapter 8: "Smart Slime")