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. 2012 Jan 4;32(1):46–61. doi: 10.1523/JNEUROSCI.2683-11.2012

Table 3.

Categorization of transplanted ESNP-derived neurons based on electrophysiological properties

Parameter Type I (10) Type II (4) Type III (11) Type IV (4) Type V (1) GIN (5) p < 0.05
Membrane potential (mV) −48.50 ± 2.4 −52.3 ± 3.1 −49.4 ± 2.5 −58.0 ± 2.7 −68 −44.7 ± 2.6
Delay to spike (ms) 19.7 ± 4.2 15.2 ± 6.1 18.0 ± 3.9 12.7 ± 4.3 44.2 16.6 ± 4.2
Spike threshold (mV) −38.7 ± 1.7 −39.0 ± 4.0 −40.8 ± 2.3 −40.8 ± 4.3 −22.5 −41.8 ± 1.2
AP amplitude (mV) 67.1 ± 2.9 29 ± 2.6 63 ± 3.9 62 ± 6.2 31.3 59.5 ± 6.0 I–II,
II–III,
II–IV, II–GIN
AP half-width (ms) 0.82 ± 0.06 1.13 ± 0.43 1.04 ± 0.1 0.78 ± 0.09 2.1 0.96 ± 0.1
AP drop (mV) 6.0 ± 1.4 −2.3 ± 0.4 7.1 ± 1.6 3.2 ± 1.4 4.5 0.8 ± 1.2 I–II,
II–III
Maximum frequency (Hz) 46.5 ± 3.2 50.7 ± 12.3 50.4 ± 8.1 55.2 ± 8.7 18.4 69.9 ± 17.6
Maximum number of APs 19.4 ± 2.4 24.5 ± 6.0 9.5 ± 1.0 25.8 ± 5.0 8 20.3 ± 6.7 I–III,
II–III,
III–IV
Adaptation 2.0 ± 0.2 2.2–0.3 2.3 ± 0.3 2.1 ± 0.2 2.3 1.6 ± 0.3
AHP1 amplitude (mV) −18.1 ± 2.6 −7.9 ± 1.6 −15.0 ± 2.0 −16.6 ± 1.9 −9.3 −11.6 ± 1.8
AHP2 amplitude (mV) −4.1 ± 0.9 −6.1 ± 2.3 −0.7 ± 0.7 −3.3 ± 1.2 0 −1.6 ± 1.6 II–III
Voltage sag ratio 1.47 ± 0.08 1.63 ± 0.26 1.01 ± 0.01 1.03 ± 0.03 1 1.17 ± 0.07 I–IV,
I–III,
II–III,
II–IV, II–GIN
Input resistance (MΩ) 717 ± 98 450 ± 51 784 ± 107 641 ± 92 377 529 ± 83