Cognitive Neuroscience. The Biology of the Mind - download pdf or read online

By Michael S. Gazzaniga

ISBN-10: 0393922286

ISBN-13: 9780393922288

The such a lot authoritative cognitive neuroscience textual content can be the main accessible.

the 1st textbook for the path, and nonetheless the marketplace chief, Cognitive Neuroscience has been completely refreshed, rethought, and reorganized to reinforce scholars’ and teachers’ event. a gorgeous, all new artwork software conveys facts and ideas in actual fact, and new chapter-opening Anatomical Orientation figures aid scholars get their bearings. The desk of contents and the chapters themselves were reorganized to enhance the logical movement of the narrative, and the area well known writer group has saved the ebook totally brand new at the newest study during this fast paced box.

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Example text

Kety’s method and results were used in developing positron emission tomography (described later in this section), which uses radiotracers rather than an inert gas. 23 Angelo Mosso’s experimental setup was used to measure the pulsations of the brain at the site of a skull defect. Although blood flow was of interest to those studying brain function, having good anatomical images in order to locate tumors was motivating other developments in instrumentation. Investigators needed to be able to obtain three-dimensional views of the inside of the human body.

As Ramón y Cajal and others of his time deduced, neurons take in information, make a “decision” about it following some relatively simple rules, and then, by changes in their activity levels, pass it along to other neurons. 2), and these variations are closely related to their functions. Glial cells are nonneural cells that serve various functions in the nervous system, some of which are only now being elucidated. These include providing structural support and electrical insulation to neurons, and modulating neuronal activity.

55 mV, an action potential is triggered. We refer to this depolarized membrane potential value as the threshold for initiating an action potential. 11b illustrates an idealized action potential. The numbered boxes in the figure correspond to the numbered events in the next paragraph. Each event alters a small region of the membrane’s permeability for Na+ and K+ due to the opening and closing of voltage-gated ion channels. 11 b, label 1) is reached, voltage-gated Na+ channels open and Na+ flows rapidly into the neuron.

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Cognitive Neuroscience. The Biology of the Mind by Michael S. Gazzaniga

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