A Tale of Two Aphasias

Paul Broca
Paul Broca

It’s 1861, and the French neurologist Paul Broca is examining a new patient. Dr. Broca is puzzled because all the patient can say is “tan.” When Dr. Broca asks him questions, Tan cannot seem to form the words. However, it is clear that Tan can understand language because, when he asked to whistle or sing a melody, he can do so without a problem. Something is wrong with his ability to speak! When he is asked to speak grammatically or create complete sentences, he cannot do it – not even in writing! Dr. Broca doesn’t know what to do for Tan, since he knows that Tan must have brain damage… but where?Continue reading

Split Brain Knowing Neurons

The Split Brain: Making Two Hemispheres Whole

Admit it!  You’ve taken one of those online quizzes to see if you’re more “right-brained” or “left-brained.”  Too bad it’s all bunk!    Popular culture would have you believe that creative and artistic people are right-brain dominated, while logical, methodical, and analytical people are left-brain dominated.    The fact of the matter is that you use all parts of your brain equally, no matter your personality traits!  So, how did this myth even come to be?Continue reading

What Songbirds Tell Us About Human Nature

Every once in a while, we hear of amazing scientific feats about how some new drug successfully reduces weight without dieting or exercise in monkeys, or how scientists slowed aging in worms and doubled their lifespans. These studies are often a cause for ridicule in the media, which reduces their significance and validity by implying that mice, flies, birds—any animal really—is not a true representation of the human condition.Continue reading