1. Long-term microelectrode recording from Schwann cells surrounding the isolated giant axon of the squid; steady and oscillating potentials;Abbott N. J.;J. Physiol. Lond.,1990
2. shown by Pichon etal. (1990) in Alloteuthis. In Ca 2+-free Abbott N .J. Pichon Y. Inoue I. Brown E. R.
3. asw the potential more commonly remained stable
4. (figure 7) suggesting that external Ca 2+ is involved in
5. one or more of the steps leading to hyperpolarization.