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Article: Long-term potentiation of synaptic response and intrinsic excitability in neurons of the rat medial vestibular nuclei.

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Pettorossi VE; Dieni CV; Scarduzio M; Grassi S
Neuroscience, 2011


Table 2Values of EPSP, IE and AP (mean±SD) before and after HFS in type-A and type-B neurons evaluated in separate groups of neurons (condition 1 and 2) or in the same neuron alternating EPSP and IE recordings (condition 3)
Type-A neurons
Condition 1 (n=4)Condition 2 (n=5)Condition 3 (n=1)
ControlHFSControlHFSControlHFS
EPSP
Amplitude (mV)2.86±1.563.68±0.42.42±0.93.2±0.62.63.1
Slope (mV/ms)0.45±0.250.57±0.070.520.76
Decay time constant τ (ms)45.1±15.558.3±3.948.768.9
Condition 1 (n=8)Condition 2 (n=6)Condition 3 (n=3)
ControlHFSControlHFSControlHFS
IE
SF (spikes/s)2.6±1.14.2±1.33±0.74.5±0.6
EF (spikes)12.3±5.821.3±6.810.5±3.617.8±4.511.2±2.517.6±3.8
Rin (MΩ)640.6±240.4770.6±65.5720.2±160.1866.1±28.9
AP
AHP amplitude (mV)−22.3±3−19.5±2
ISS (mv/s)57.89±10.281.93±6.8
Type-B neurons
Condition 1 (n=10)Condition 2 (n=10)Condition 3 (n=3)
ControlHFSControlHFSControlHFS
EPSP
Amplitude (mV)4.32±1.47±0.9⁎5.2±1.58.2±0.5⁎4.7±1.36.9±0.5⁎
Slope (mV/ms)1.26±0.991.99±0.25⁎2.2±0.73.1±0.2⁎
Decay time constant τ (ms)18.8±8.127±4.5⁎19.5±5.127.7±1.8⁎
Condition 1 (n=6)Condition 2 (n=6)Condition 3 (n=2)
ControlHFSControlHFSControlHFS
IE
SF (spikes/s)5.5±3.914.1±4.5⁎6.4±2.612±0.7⁎
EF (spikes)13.8±3.625.1±7.412.4±2.522.3±5.4⁎15.4±2.924.9±1.7
Rin (MΩ)272±113.6348.4±51.2197±99.6249.3±23.8
AP
AHP amplitude (mV)−16.2±1.3−13.3±1.2
ISS (mv/s)122.2±18.2237.14±35.7⁎
⁎Indicates significant difference (ANOVA and Tukey's post hoc test, P<0.05) in the change induced by HFS between type-A and type-B neurons.

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