Table 1Electrophysiological properties of MSNs and FSIs
MSN (n=15)
FSI (n=15)
Rmp (mV)
−76±5
−67±5*
Rin (MΩ)
207±21
226±24
Ap amplitude (mV)
50±4
38±2**
Ap threshold (mV)
−36±1
−33±1
Ap half-width (ms)
1.6±0.1
1.0±0.1*
dV/dt of Ap rising slope phase (V/s)
109±9
93±9
Ap repolarization time (ms)
33±5
3±0.2**
AHP (mV)
6.3±0.3
11.6±1.1*
Values are mean±S.E.M.Abbreviations: Rmp: resting membrane potential, Rin: input resistance, Ap: action potential, AHP: afterhyperpolarizing potential. The AP amplitude was measured with respect to firing threshold level. Ap repolarization time refers to the time window between the spike peak and the AHP minimum value.*p<0.05, **p<0.005; Mann–Whitney's U-test.
