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Article: External urethral sphincter motoneuron properties in adult female rats studied in vitro.

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Carp JS; Tennissen AM; Liebschutz JE; Chen XY; Wolpaw JR
J. Neurophysiol., 2010

Table 4.

Regression analyses of EUS motoneuron properties on afterhyperpolarization (AHP) half-decay time and resting membrane potential (RMP)

Percentage of Dependent Variable Variance Accounted for by Independent Variable(s)
Test Design Independent Variables That Account for Variance in Dependent Variable Input Resistance Depolarization Threshold Rheobase ΔI Recruitment Current Derecruitment Current
One-factor AHP half-decay time 20.8** 40.6*** 43.5*** 21.8* 45.6*** 47.2***
RMP 12.7* 28.7** 35.4** 2.1 61.8*** 60.2***
Two-factor All factors 22.2* 45.9** 65.0*** 22.8* 77.0*** 77.0***
AHP half-decay time (unique) 9.9 17.3* 29.7** 21.4* 16.8** 18.6**
RMP (unique) 2.8 9.0 22.8** 0.3 33.6*** 31.6***
AHP half-decay time and RMP (common) 9.5 19.6 12.5 1.1 26.6 26.8
  • Regressions of input resistance, depolarization threshold (voltage excursion from RMP to reach the action potential threshold), rheobase (current threshold for action potential initiation during 40-ms depolarizing pulse), ΔI (ramp decrecruitment − recruitment current), ramp recruitment current, and ramp derecuitment current on AHP half-decay time and/or RMP determine the variance they account for in the dependent variables. The two-factor analyses show the percentage of the dependent variable variance accounted for by the variation in: all factors together (All factors), the unique contribution of each independent variable (unique), and the variance that is common among independent variable (common; calculated as the difference between the variance accounted for by the entire model and the sum of the unique contributions of the independent variables individually).

  • * P < 0.05,

  • ** P < 0.01, and

  • *** P < 0.001, variance accounted for by variable(s) significantly different from zero.

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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source