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Galvani's Spark - The Story of the Nerve Impulse (Hardcover)
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Galvani's Spark - The Story of the Nerve Impulse (Hardcover)
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Galvani's Spark chronicles the gradual understanding of the nerve
impulse which is the basis of all thoughts, sensations and actions.
The story begins with Luigi Galvani's chance observation of a spark
from a friction machine causing a frog's leg to twitch from across
the room. The accurate recording and the understanding of the
properties of the nerve fiber membrane that makes the impulse
possible became the objectives of neuroscientists for over 200
years.
The author, Alan J. McComas finely interweaves the stories, the
challenges, and the controversies of the most prominent figures in
neuroscience, from the histological descriptions of nerve cells by
Cajal to the discovery of a three-dimensional structure of ion
channels in cell membranes by MacKinnon. Along the way he details
the first recordings of the impulse with a cathode ray oscilloscope
by Gasser and Erlanger, Adrian's discovery that stimulus intensity
is coded by the frequency of nerve impulses, and Hodgkin and
Huxley's brilliant voltage clamp experiments, amongst many others.
The recognition by Galvani that muscles and nerves have an
electrical component triggered the field of neurophysiology and in
turn has produced some of the greatest discoveries in neuroscience.
16 investigators of the nerve impulse went on to win or share Nobel
prizes and this book not only emphasizes their work but also traces
their brilliant careers. For anyone interested in the nervous
system and the history of neuroscience, Galvani's Spark: The Story
of the Nerve Impulse is essential reading.
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