Sunday, March 15, 2009

Three Pounds of Grey and a Little Red Car

Brains are amazing. According to my sources, it's like a three-pound sheet of tofu that is folded up in such a way as to fit inside a tiny human head. The human brain is five-times the size of brains in similarly sized mammals. Scientists have found that in different people, different lobes work in different ways. Here is my non-professional dissection:




Cerebral Cortex--Biggest part of brain consisting of four parts/lobes: frontal, parietal, temporal, and occipital
Frontal Lobes-- self-control, planning, reasoning, abstract thought, home of personality, emotitional epicenter
Parietal Lobes--Sensation and Perception and integrating sensory input. Coordinating where we fit in the world around us.
Temporal Lobe--auditory sensation, audio/visual input, organization and categorization of words, long-term memory, language comprehension, sexual behavior
Occipital Lobe--Not vulnerable to damage, so no one knows much. Disorders can cause hallucinations, word blindness, writing impairments, discoloration, distorted perception of size.



Cerebellum-- A fist-sized computer at the bottom of the brain that contributes to motor and mental dexterity. It continues to develop throughout childhood and is usually mature after about 20 years. Cerebellum exercises, anyone? :)

Brain Stem--

Corpus Collasum-- A Nerve bundle that connects the two sides of the brain.

Thanks for the pics, Wikipedia.



All this to say, I think it's pretty cool how the brain is so complex, it seems we can't even use it to understand it. Hrm.

So, I've had some strange scary dream-like moments before sleep and am wondering what part of the brain is hyperactive lately. According to one study, the dream part of the brain is buried in the back. A 73-year-old woman had a stroke that impacted only this small part and suddenly stopped dreaming. Even when doctors woke her up during REM sleep, she was not dreaming.

Too bad there's no such thing as a brain massage. I'd like one. Doctors of the world, let's get to work on that. Pronto.

Lobes. Crash. Panic. Sleep. Rain. Piano. :)

Aubrey

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