As he has done previously, USC neuroscientist Damasio (Descartes' Error) explores the process that leads to consciousness. And as he has also done previously, he alternates between some exquisite passages that represent the best popular science has to offer and some technical verbiage that few will be able to follow. He draws meaningful distinctions among points on the continuum from brain to mind, consciousness to self, constantly attempting to understand the evolutionary reasons why each arose and attempting to tie each to an underlying physical reality. Damasio goes to great lengths to explain that many species, such as social insects, have minds, but humans are distinguished by the "autobiographical self," which adds flexibility and creativity, and has led to the development of culture, a "radical novelty" in natural history. Damasio ends with a speculative chapter on the evolutionary process by which mind developed and then gave rise to self. In the Pleistocene, he suggests, humans developed emotive responses to shapes and sounds that helped lead to the development of the arts. Readers fascinated from both a philosophical and scientific perspective with the question of the relationships among brain, mind, and self will be rewarded for making the effort to follow Damasio's arguments. (Nov.)
The arrival of neurons and their unique ability to transmit and receive messages was the radical break in the course of the human brain's evolution. This led to the development of the self. Neurons organize themselves in complex circuits and networks. Networks that serve to represent events occurring in the body, influence the function of other cells, even their own function. In this framework, the distinction between body and brain is blurred-the neurons that make up the brain and eventually generate the mind are body cells and are perpetually connected to the body. Neurons are the producers of mind states. The increasing complexity of the patterns in which neurons organize themselves is once the mystery and the clues to the myriad ways in which the brain operates, manages life, and controls human behavior-in ways that we are only beginning to understand.
The systems of neurons that govern life in the interior of a body-the process of homeostasis-are first assisted by reflex-like dispositions, eventually by images, which are the basic ingredient of minds. But the flexibility and creativity of the human mind do not emerge from images alone. They require images to create a protagonist; one's self that is capable of reflection. Once self comes to mind, the devices of reward and punishment, drives and motivations, and emotions, can be controlled by an autobiographical self. These devices, which have been present all along at earlier evolutionary stages, are now capable of personal reflection and deliberation. The reflective self uses expanded memory, language, and reasoning to create the very possibility of culture.
The arrival of neurons and their unique ability to transmit and receive messages was the radical break in the course of the human brain's evolution. This led to the development of the self. Neurons organize themselves in complex circuits and networks. Networks that serve to represent events occurring in the body, influence the function of other cells, even their own function. In this framework, the distinction between body and brain is blurred-the neurons that make up the brain and eventually generate the mind are body cells and are perpetually connected to the body. Neurons are the producers of mind states. The increasing complexity of the patterns in which neurons organize themselves is once the mystery and the clues to the myriad ways in which the brain operates, manages life, and controls human behavior-in ways that we are only beginning to understand.
The systems of neurons that govern life in the interior of a body-the process of homeostasis-are first assisted by reflex-like dispositions, eventually by images, which are the basic ingredient of minds. But the flexibility and creativity of the human mind do not emerge from images alone. They require images to create a protagonist; one's self that is capable of reflection. Once self comes to mind, the devices of reward and punishment, drives and motivations, and emotions, can be controlled by an autobiographical self. These devices, which have been present all along at earlier evolutionary stages, are now capable of personal reflection and deliberation. The reflective self uses expanded memory, language, and reasoning to create the very possibility of culture.
Self Comes to Mind: Constructing the Conscious Brain
Self Comes to Mind: Constructing the Conscious Brain
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Product Details
BN ID: | 2940172407338 |
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Publisher: | Brilliance Audio |
Publication date: | 11/09/2010 |
Edition description: | Unabridged |