Three Brain Pathways to Reading

The frontal reading system has been implicated in phonological processing and semantic processing (word analysis). This is also where Broca’s area is found. Broca’s area is involved in language processing, speech production, and comprehension. Neuron activation is increased in this area when words are spoken (Devlin, Matthews, & Rushworth, 2003). The ventral posterior processing system (located in the occipital and temporal lobes) is most associated with orthographic processing (visu...

 The Upstairs and Downstairs Brain

Our amygdala (pronounced uh-MIG-duh-luh) is about the size and shape of an almond and is part of the limbic area, which resides in the downstairs brain. The amygdala’s job is to quickly process and express emotions, especially anger and fear. This little mass of gray matter is the watchdog of the brain, remaining always alert for times we might be threatened. When it does sense danger, it can completely take over, or hijack, the upstairs brain. That’s what allows us to act before we think...

 Human Brain is "Conserved"

evolution conserves things that work. We have a conserved brain, with different ages for its different parts—in effect lizard at back and bottom, mammal in the middle, human at the front and top. Lizard brain to breathe and sleep, mammal brain to form packs, human brain to think it over

 The Brain Dies in Stages

“The body tries to stay alive. It’s not so… It’s natural. Maybe you’ll see it now. First the human brain dies, then the animal brain, then the lizard brain. Like your Rm, only backward. The lizard brain tries to its very last bit of energy to keep things going. I’ve seen it. Some kind of desire. It’s a real force. Life wants to live. But eventually a link breaks. The energy stops getting to where it needs to be. The last ATP gets used. Then we die. Our bodies return to earth, go...

 How the Brain Handles Novelty and Routine

When faced with complexity, our first response is to retreat to the familiar, even if the familiar means failing. But in addition to reverting to what is familiar, we also have another reaction: fear. We are hardwired to perceive real change as threatening, so we instinctively reject it. Sure, a few of us have the courage and tenacity to attack the complex, the unknown, and the risky. After all, this is hiow new discoveries are made. But many more of us do not. Why not? It turns out t...