The brain is not an onion with a tiny reptile inside (2020)
After reading this article as well as the relevant Wikipedia entry [1], I still don&#x27;t get what&#x27;s supposedly &quot;wrong&quot; with the triune brain model.<p>In fact, this article seems to set it up as a bit of a straw man. The main rebuttals in this article are 1) that evolution is branched rather than linear, 2) that larger brains aren&#x27;t necessarily more complex, and 3) that evolution modifies existing brain structures in addition to adding new layers.<p>But all of that seems rather obvious, and doesn&#x27;t really refute the triune brain theory at all.<p>Isn&#x27;t it scientifically true that we have a basal ganglia which evolved from reptiles, a limbic system also present mammals, and a neocortex that works similarly to that in other primates, dolphins, and elephants? And each of those map to certain types of behaviors, that we see in these species?<p>The triune brain hypothesis doesn&#x27;t seem &quot;wrong&quot;, it just seems like a simple categorization that is useful for making big-picture distinctions.<p>Am I missing something? I literally don&#x27;t understand what is even being &quot;refuted&quot; here, because the refutations don&#x27;t seem to match the claims at all.<p>[1] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Triune_brain" rel="nofollow noreferrer">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Triune_brain</a>