In other words, scientists at Ohio State University say, it’s the most complete model of a human brain ever grown in a lab.

If approved for use in research, the tiny organoid unveiled at the Military Health System Research Symposium in Ft. Lauderdale, Fla. on Tuesday could improve research into a whole host of brain-related illnesses, including autism, Parkinsons and post-traumatic stress disorder.

Because the process hasn’t been published in an academic study, other scientists were hesitant to judge the quality of Anand and McKay’s work.