![]() ![]() The brain started off with just three rooms, or clumps of neurons: a hindbrain (connected to the spinal column), a midbrain, and a forebrain (connected to the sensory organs at the front of the animal). The right hemisphere is better at processing patterns in space, including that all-important pattern, the face. In visual tasks, it is better at noticing details. ![]() The left hemisphere is specialized for language processing and analytical tasks. But in other respects, the two hemispheres are specialized for different tasks. Nobody knows why the signals cross over in this way in all vertebrates they just do. The right hemisphere is in this respect the left’s mirror image, taking in information from the left half of the world and controlling movement on the left side of the body. The left hemisphere takes in information from the right half of the world (that is, it receives nerve transmissions from the right arm and leg, the right ear, and the left half of each retina, which receives light from the right half of the visual field) and sends out commands to move the limbs on the right side of the body. The brain divides its processing of the world into its two hemispheres-left and right. Indeed it is: It allows the two halves of the brain to communicate and coordinate their activity. The corpus callosum is the largest single bundle of nerves in the entire body, so it must be doing something important. ![]() The human brain has two separate hemispheres joined by a large bundle of nerves, the corpus callosum. Montaigne also noted the ways in which our facial expressions betray our secret thoughts our hair stands on end our hearts race our tongues fail to speak and our bowels and anal sphincters undergo “dilations and contractions proper to, independent of our wishes or even opposed to them.” Second Division: Left vs. We sometimes say that the body has a mind of its own, but the French philosopher Michel de Montaigne went a step further and suggested that each part of the body has its own emotions and its own agenda. The fourth is the most important, for it corresponds most closely to the rider and the elephant but the first three also contribute to our experiences of temptation, weakness, and internal conflict. We assume that there is one person in each body, but in some ways we are each more like a committee whose members have been thrown together to do a job, but who often find themselves working at cross purposes. To understand most important ideas in psychology, you need to understand how the mind is divided into parts that sometimes conflict. Today this mind does not stray and is under the harmony of control, even as a wild elephant is controlled by the trainer. In days gone by this mind of mine used to stray wherever selfish desire or lust or pleasure would lead it. It’s also hard to think about the mind, but once you pick a metaphor it will guide your thinking.īuddha, for example, compared the mind to a wild elephant: For example, it’s hard to think about life in general, but once you apply the metaphor “life is a journey,” the metaphor guides you to some conclusions: You should learn the terrain, pick a direction, find some good traveling companions, and enjoy the trip, because there may be nothing at the end of the road. We understand new or complex things in relation to things we already know. □ Listen for free on Scribd (plus 1+ million other books) The Divided Self □ Buy The Happiness Hypothesis on Amazon Highly recommended to anyone who doesn't like self-help advice, and wants to understand where hapinness comes from, and how to become a happier person. An interesting book that analyzes happiness from a psychological and phylosophical standpoint. ![]()
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