The first lesson in Lisa Feldman Barrett’s popular book, Seven and a Half Lessons About the Brain, 1 is titled "You Have One Brain (Not Three)." It focuses on debunking Paul MacLean’s triune model of ...

The triune brain is a popular but flawed model in neuroscience. However, the triune mind works very well in psychology.

Dr. Paul D. MacLean, the neuroscientist who in the 1960s developed the then-revolutionary concept of the three-part brain -- one part controlling involuntary actions, one controlling emotions and the ...

Unfortunately, the triune-brain theory remains a staple of introductory science textbooks. The study’s coauthors sampled 20 introductory psychology textbooks, published from 2009 and 2017.