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Article: Two layers of synaptic processing by principal neurons in piriform cortex.

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Suzuki N; Bekkers JM
J. Neurosci., 2011


Table 1.

Mean and SE of selected parameters used in the cluster analysis

Electrical parameters Morphological parameters
SL-like SP-like p SL-like SP-like p
Resting potential (mV) −67.2 ± 0.7 −76.3 ± 0.7 <0.001 Soma cross-sectional area (μm2) 268 ± 7 315 ± 9 <0.001
Input resistance (MΩ) 221.2 ± 15.2 55.0 ± 3.5 <0.001 n apical dendrites at soma 2.68 ± 0.12 1.41 ± 0.13 <0.001
Membrane time constant (ms) 26.0 ± 1.7 10.1 ± 0.7 <0.001 n basal dendrites at soma 2.15 ± 0.32 5.96 ± 0.38 <0.001
Sag 0.91 ± 0.01 0.93 ± 0.01 0.22 Total length of apical dendrites (μm) 2594 ± 83 3646 ± 142 <0.001
Action potential threshold (mV) −36.0 ± 0.5 −41.5 ± 0.6 <0.001 Total length of basal dendrites (μm) 448 ± 84 2022 ± 159 <0.001
Action potential halfwidth (ms) 0.74 ± 0.01 0.76 ± 0.01 0.29 n apical dendritic branch points 13.0 ± 0.5 18.5 ± 0.9 <0.001
Action potential height (mV) 76.2 ± 1.1 92.9 ± 0.9 <0.001 n basal dendritic branch points 1.5 ± 0.3 8.6 ± 0.8 <0.001
  • Values were calculated for cells in the SL-like cluster (n = 34) and the SP-like cluster (n = 27) in Fig. 1D, as described in Materials and Methods. The p values indicate that sag and action potential half widths do not provide a distinction between SL-like and SP-like cells, but all the other parameters listed here do support a clear distinction, on average.


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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Olfactory cortex semilunar cell input resistance (MΩ) 221.2 ± 15.2 (34) 221.2 (MΩ) Data Table
Olfactory cortex pyramidal cell input resistance (MΩ) 55.0 ± 3.5 (27) 55.0 (MΩ) Data Table
Olfactory cortex semilunar cell membrane time constant (ms) 26.0 ± 1.7 (34) 26.0 (ms) Data Table
Olfactory cortex pyramidal cell membrane time constant (ms) 10.1 ± 0.7 (27) 10.1 (ms) Data Table
Olfactory cortex semilunar cell resting membrane potential (mV) -67.2 ± 0.7 (34) -67.2 (mV) Data Table
Olfactory cortex semilunar cell sag ratio 0.91 ± 0.01 (34) 0.91 (ratio) Data Table
Olfactory cortex pyramidal cell sag ratio 0.93 ± 0.01 (27) 0.93 (ratio) Data Table
Olfactory cortex pyramidal cell resting membrane potential (mV) -76.3 ± 0.7 (27) -76.3 (mV) Data Table
Olfactory cortex semilunar cell spike threshold (mV) -36.0 ± 0.5 (34) -36.0 (mV) Data Table
Olfactory cortex pyramidal cell spike threshold (mV) -41.5 ± 0.6 (27) -41.5 (mV) Data Table
Olfactory cortex semilunar cell spike half-width (ms) 0.74 ± 0.01 (34) 0.74 (ms) Data Table
Olfactory cortex pyramidal cell spike half-width (ms) 0.76 ± 0.01 (27) 0.76 (ms) Data Table
Olfactory cortex semilunar cell spike amplitude (mV) 76.2 ± 1.1 (34) 76.2 (mV) Data Table
Olfactory cortex pyramidal cell spike amplitude (mV) 92.9 ± 0.9 (27) 92.9 (mV) Data Table