The brain is only the size of a pea, but looks like a normal brain and has multiple cell types and all the regions of a normal brain - "equal in maturity to that of a five-week-old fetus," according to the report.

They say it could be used as a more effective and more ethical way to test the effects of drug treatments on the brain.

Click here to read more from AFP.

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Ja’Quon Stembridge, shown here in July at the Henry County Republican Party monthly meeting, recently stepped from his position with the Georgia GOP. (Jenni Girtman for the AJC)

Credit: Jenni Girtman