About the book
The sodium theory revisited (45 years of a full time CNRS neurophysiologist). The sodium theory has been elegantly proposed by Hodkin, Huxley and Katz in the early fifties, after their experiments on Plymouth squids, to account for the role of sodium and potassium ions in nerve activity. Since then, the electrophysiological techniques and the data acquisition techniques have known an amazing development. In this short paper, Yves Pichon wants to give an account of what happened since then in different laboratories (mostly marine) with a variety invertebrate species and mostly insects. One of the most important technical development has been the use of single cockroach axons which have been found to behave very much like squid axons. Another, almost simultaneous development which revealed extremely useful for the understanding of the nerve function was “in situ” microelectrode recording which enables an indirect analysis of the extraaxonal environement. Experiments on several species indicate that the CNS is protected from the ionic environment by a blood-brain barrier. On the other hand, quite unexpectedly, little ion accumation is detected in the vicinity of the axonal membrane in physiological conditions. Another innovating technique was the 'patch-clamp' technique which enables the recording of the activity of individual ionic channels in cultured neurones. The last chapter of this report is devoted to different mechansims leading to repetitive activity through modificatrion of the sodium and potassium axonal conductances.
Editions of The Sodium Theory Revisited
- Hardcover
- ISBN 9781479793716
- Paperback
- ISBN 9781479793709
- EBook
- ISBN 9781479793723
- Kindle
- ISBN
Read an Excerpt
The sodium theory revisited (45 years of a full time CNRS neurophysiologist). The sodium theory has been elegantly proposed by Hodkin, Huxley and Katz in the early fifties, after their experiments on Plymouth squids, to account for the role of sodium and potassium ions in nerve activity. Since then, the electrophysiological techniques and the data acquisition techniques have known an amazing development. In this short paper, Yves Pichon wants to give an account of what happened since then in different laboratories (mostly marine) with a variety invertebrate species and mostly insects. One of the most important technical development has been the use of single cockroach axons which have been found to behave very much like squid axons. Another, almost simultaneous development which revealed extremely useful for the understanding of the nerve function was “in situ” microelectrode recording which enables an indirect analysis of the extraaxonal environement. Experiments on several species indicate that the CNS is protected from the ionic environment by a blood-brain barrier. On the other hand, quite unexpectedly, little ion accumation is detected in the vicinity of the axonal membrane in physiological conditions. Another innovating technique was the 'patch-clamp' technique which enables the recording of the activity of individual ionic channels in cultured neurones. The last chapter of this report is devoted to different mechansims leading to repetitive activity through modificatrion of the sodium and potassium axonal conductances.
Frequently Asked Questions
What is The Sodium Theory Revisited about?
The sodium theory revisited (45 years of a full time CNRS neurophysiologist). The sodium theory has been elegantly proposed by Hodkin, Huxley and Katz in the early fifties, after their experiments on Plymouth squids, to account for the role of sodium and potassium ions in nerve activity. Since then, the electrophysiological techniques and the data acquisition techniques have known an amazing development. In this short paper, Yves Pichon wants to give an account of what happened since then in different laboratories (mostly marine) with a variety invertebrate species and mostly insects. One of the most important technical development has been the use of single cockroach axons which have been found to behave very much like squid axons. Another, almost simultaneous development which revealed extremely useful for the understanding of the nerve function was “in situ” microelectrode recording which enables an indirect analysis of the extraaxonal environement. Experiments on several species indicate that the CNS is protected from the ionic environment by a blood-brain barrier. On the other hand, quite unexpectedly, little ion accumation is detected in the vicinity of the axonal membrane in physiological conditions. Another innovating technique was the 'patch-clamp' technique which enables the recording of the activity of individual ionic channels in cultured neurones. The last chapter of this report is devoted to different mechansims leading to repetitive activity through modificatrion of the sodium and potassium axonal conductances.
What core themes, tropes, or subjects are explored in The Sodium Theory Revisited?
Biography, Literature and Literary studies > Biography and non-fiction prose > Biography: general
Where can I read a sample of The Sodium Theory Revisited?
You can read an official preview of the few pages here https://www.book2look.com/book/9781479793716
Who is/are the Author/s of the book The Sodium Theory Revisited?
Yves Pichon
Who is the Publisher of the book The Sodium Theory Revisited?
Xlibris
What are the ISBN numbers for the physical and digital editions?
The Sodium Theory Revisited is available as hardcover(ISBN 9781479793716) and paperback(ISBN 9781479793709) and ebook(ISBN 9781479793723) and kindle(ISBN )