Ba++ induced square-shaped potential waves in molluscan neurones |
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Authors: | M Gola C Ducreux |
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Institution: | (1) Département de Biophysique des Neuromembranes, C. N. R. S., Institut de Neurophysiologie et Psychophysiologie, 31, Chemin Joseph-Aiguier, F-13274 Marseille Cedex 2, (France) |
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Abstract: | Summary Rhythmic slow square-shaped potential waves lasting 20–50 sec are induced in Aplysia neurones when Ca++ is replaced by Ba++. During the plateau, the membrane is highly permeable to Ba++ ions, whereas in the inter-wave period the membrane resistance increases by 60 times. Analysis with slow current ramps suggests that the membrane properties of Ba-treated neurones and normally burst-generating neurones are similar. |
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