Article: Temporal sequence of changes in electrophysiological properties of oculomotor motoneurons during postnatal development.
Full Text (publisher's website) ; Article Metadata ; Article Data (extracted) Carrascal L; Nieto-Gonzalez JL; Núñez-Abades P; Torres B Neuroscience, 2006
Table 1Passive and active membrane properties of oculomotor Mns during postnatal development
Asterisks indicate differences between adjacent age groups; crosses indicate difference from first age group (Mann-Whitney U test): *,+P<0.05, **,++P<0.01, ***,+++P<0.001.
Variable | Age group (P) | ||||
1–5 | 6–10 | 11–15 | 16–20 | >20 | |
Resting membrane potential (mV) | −63.1±1.3 | −60.3±1.6 | −62.5±2.1 | −63.0±2.2 | −60.0±3.3 |
Input resistance (MΩ) | 82.9±5.1 | 63.7±3.8** | 60.5±4.1 | 59.5±1.5 | 53.1±2.8+++ |
Time constant (ms) | 9.4±0.6 | 5.9±0.4** | 5.5±0.3 | 5.4±0.2 | 4.9±0.6+++ |
Rheobase current (nA) | 0.29±0.05 | 0.20±0.04 | 0.18±0.04 | 0.15±0.03 | 0.11±0.02++ |
Depolarization voltage (mV) | 19.7±2.2 | 14.7±2.1 | 13.9±2.2 | 11.7±1.7 | 10.7±1.6+ |
Duration action potential (ms) | 2.3±0.10 | 1.8±0.05*** | 1.4±0.06*** | 1.3±0.05 | 1.2±0.04+++ |
Duration mAHP (ms) | 184.8±8.8 | 144.6±5.5*** | 123.6±4.6** | 104.2±6.2* | 94.4±5.2+++ |
Frequency gain (spikes s−1/nA) | 45.6±5.6 | 48.2±3.3 | 51.1±4.6 | 56.2±5.7 | 66.5±3.4+ |
Maximum frequency (spikes/s) | 29.8±4.0 | 40.0±4.3 | 47.9±3.8 | 79.6±4.7** | 81.5±4.8+++ |