Correction

Lacampagne, A., Ward, C.W., Klein, M.G., and M.F. Schneider The Journal of General PhysiologyVolume 113, No. 2, February 1999. 187–198.

Page 191.

Due to an editorial error, a function appeared incorrectly. The corrected function and surrounding paragraph appear below.

Fig. 2 B presents the same experimental Ca²⁺ spark ΔF/F time course as in Fig. 2 A, but now fit by the function

(2)

over the same interval as used in Fig. 1 A. The values of the parameters A, k ₁, d ₁, k ₂, d ₂, and C were adjusted to give a best least-squares fit of Fn. 2 to the experimental record. The resulting fit of Fn. 2, which has discontinuous derivatives at both its start and peak, closely follows all aspects of the experimental record in Fig. 2 and provides a better reproduction of the sharp peak in the experimental record in Fig. 2 than could be achieved using the function in Fn. 1.