By Todd E. Feinberg
It can be the inner most secret of philosophy, psychology, and neuroscience: how does the mind unite to create the self, the subjective "I"? In Altered Egos, Dr. Todd Feinberg provides a brand new idea of the self, in accordance with his first-hand adventure as either a psychiatrist and neurologist.
Feinberg first introduces the reader to dozens of interesting circumstances of sufferers whose problems have ended in what he calls "altered egos": a transformation within the mind that transforms the bounds of the self. He describes sufferers that suffer from "alien hand syndrome" the place one hand may well assault the patient's personal throat, sufferers with frontal lobe harm who invent wonderful tales approximately their lives, paralyzed sufferers who reject and disown one in all their limbs. Feinberg argues that the mind harm suffered via those humans has performed extra than just impair convinced functions--it has fragmented their feel of self. After illustrating how those sufferers supply a window into the self and the brain, the writer provides a brand new version of the self that hyperlinks the workings of the mind with specific and private beneficial properties of the brain, reminiscent of which means, objective, and being. Drawing on his personal and different proof, Feinberg explains how the unified self, whereas no longer situated in a single or one other mind quarter, arises out of the miraculous complexity and variety of the brain's part elements.
Lucid, insightful, packed with attention-grabbing case reports and provocative new principles, Altered Egos provides to alter the way in which we take into consideration human recognition and the production and upkeep of human id.
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Additional info for Altered Egos How the Brain Creates the Self
It may appear shrunken inwards from the skull. The gyri (bumps) will look ‘deflated’, and the sulci (grooves) will be wider. Usually however, researchers are less interested in the outward appearance of the brain than in its cell structure and connectivity, perhaps within a discrete region. Staining techniques have enabled researchers to identify small groups of neurons, or even individual neurons using a light microscope. Microscopy has, of course developed considerably in the last 100 years, and today electron microscopes can produce images of individual synapses (junctions between neurons), or even of receptor sites on the surface of neurons for neurotransmitter chemicals.
The subject had to say what (if anything) they had seen after each presentation. 6). Reprinted with permission of Wadsworth Publishing, a division of International Publishing. items with either their left or right hand that might be related to the stimuli presented on the screen. Using this procedure the true nature of the split brain syndrome was revealed. If a picture of a car was flashed to the right of the fixation point, the patient reported seeing a car. This would be expected because the image travelled to the left (talking) hemisphere, and the patient could say what s/he saw.
In fact, about two-thirds of cortical tissue is hidden in these folds. If you could flatten out the human cortex, it would cover a square measuring about 50 cm ϫ 50 cm. Cortex means bark and it is a very apt term in this case, for the cortex is only a few millimetres thick. Its pinky grey appearance tells us that it is made up primarily of cell bodies (remember cell bodies do not have myelin sheaths), which are usually arranged in a series of between four and six layers parallel to the surface.
Altered Egos How the Brain Creates the Self by Todd E. Feinberg