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1006790213
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Neurons IonicConductances
51 records
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investigated with cell-attached recordings. ... Considerable variability was
observd between patches along the apical dendrite. Out of the 61 patches along
the dendrite 10 did not have any outward current and 14 displayed currents
that appeared to result from the activation of a single channel. In another 28
patches it was possible to observe, in some sweeps, unitary channel openings
even when the patch contained more than one channel. ... Channel openings that
could be clearly differentiated were associated by their unitary current
magnitude to one of the three types observed at the soma. ... The peak
amplitude of the ensemble K+ current changed as a function of the distance
from the soma (Fig. 13A) with a slope of -0.9 +- 0.3 pA(100µm)^-1 with a
statistically significant (P < 0.01) Spearman rank order correlation
coefficient of -0.3. The distribution of these channels as a function of the
distance from the soma is shown in Fig. 13A."pp.633-635
