Article: Specialized cortical subnetworks differentially connect frontal cortex to parahippocampal areas.

Full Text (publisher's website) ; Article Metadata ; Article Data (extracted)
Hirai Y; Morishima M; Karube F; Kawaguchi Y
J. Neurosci., 2012

Table 1.

Comparisons of electrophysiological and morphological properties between projection subtypes

	(a) L2/3 PRC-projecting	n	(b) L5 PRC-projecting	n	(c) CTh	n	Comparisons, ANOVA/post hoc Tukey's test
Passive membrane properties
Resting potential (mV)	−76.0 ± 5.0	60	−65.7 ± 4.8	53	−62.5 ± 3.3	53	a < b^ < c^
Input resistance (MΩ)	89.0 ± 21.9		97.2 ± 21.7		58.1 ± 10.6		c < a, b^**
Time constant (ms)	20.1 ± 5.7		18.3 ± 3.6		12.5 ± 2.7		c < a, b^**
Firing properties
Threshold current (pA)	263 ± 65	60	148 ± 36	53	212 ± 54	53	b < c^ < a^
f-I curve characteristics
Maximum slope of 1st ISIs (kHz/nA)	0.52 ± 0.26	60	0.41 ± 0.15	53	1.29 ± 0.83	53	a, b < c^**
Linear slope
Median ISIs (Hz/nA)	50.9 ± 11.0	58	45.8 ± 12.7	53	49.6 ± 6.0	53	b < a^*
3rd ISIs	68.3 ± 19.7		78.4 ± 22.9		42.6 ± 333		c < a, b^**
last ISIs	45.3 ± 11.7		39.5 ± 13.8		46.8 ± 6.7		b < a^, b < c^*
Linear slope ratio of last/third ISIs (constant firing index)	0.67 ± 0.11	58	0.50 ± 0.12	53	1.00 ± 0.12	52	b < a^ < c^
Somatodendritic properties
Soma position from pia (μm)	197 ± 50	21	539 ± 54	11	629 ± 67	10	a < b^ < c^
Basal dendrites
Primary dendrite number	5.7 ± 1.6		6.5 ± 1.7		7.6 ± 1.6		a < c^*
Branching points (nodes)	31.2 ± 9.5		26.5 ± 7.6		30.4 ± 5.5
Internode interval (μm)	15.6 ± 3.1		21.5 ± 6.0		19.6 ± 3.0		a < c^, a < b^*
Mean horizontal extent (μm)	79 ± 12		118 ± 21		101 ± 11		a < c^** < b^*
Mean vertical extent (μm)	46 ± 8		83 ± 16		64 ± 12		a < c^ < b^
Mean dendritic length from soma to each end (μm)	124 ± 20		212 ± 35		162 ± 21		a < c^ < b^
Apical tufts
Tuft origin from L1-L2/3 border (μm)	25 ± 23		36 ± 28		195 ± 101		a, b^** < c
Tuft area (×100 μm²)	409 ± 171		227 ± 82		527 ± 120		b < a^, c^
L1 dendritic length (μm)	2368 ± 657		1661 ± 669		2987 ± 1029		b < a^, b < c^*
L1 branching point number	15.2 ± 5.1		10.9 ± 6.1		14.8 ± 6.1

Data are mean ± SD; n, number of cells.
↵*p < 0.05;
↵**p < 0.01.

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Inferred neuron-electrophysiology data values

Neuron Type	Neuron Description	Ephys Prop	Extracted Value	Standardized Value	Content Source
Neocortex pyramidal cell layer 2-3	Layer 2/3 frontal cortex corticocortical pyramidal cell projecting to perirhinal cortex	resting membrane potential (mV)	-76.0 ± 5.0 (58)	-76.0 (mV)	Data Table
Neocortex pyramidal cell layer 5-6	Layer 5a frontal cortex corticocortical pyramidal cell projecting to perirhinal cortex	FI slope	0.5 ± 0.12 (53)	0.5 (Hz/nA)	Data Table
Neocortex pyramidal cell layer 5-6	Layer 5 frontal cortex pyramidal corticothalamic projecting cell	FI slope	1.0 ± 0.12 (53)	1.0 (Hz/nA)	Data Table
Neocortex pyramidal cell layer 5-6	Layer 5a frontal cortex corticocortical pyramidal cell projecting to perirhinal cortex	resting membrane potential (mV)	-65.7 ± 4.8 (53)	-65.7 (mV)	Data Table
Neocortex pyramidal cell layer 5-6	Layer 5 frontal cortex pyramidal corticothalamic projecting cell	resting membrane potential (mV)	-62.5 ± 3.3 (53)	-62.5 (mV)	Data Table
Neocortex pyramidal cell layer 2-3	Layer 2/3 frontal cortex corticocortical pyramidal cell projecting to perirhinal cortex	input resistance (MΩ)	89.0 ± 21.9 (58)	89.0 (MΩ)	Data Table
Neocortex pyramidal cell layer 5-6	Layer 5a frontal cortex corticocortical pyramidal cell projecting to perirhinal cortex	input resistance (MΩ)	97.2 ± 21.7 (53)	97.2 (MΩ)	Data Table
Neocortex pyramidal cell layer 5-6	Layer 5 frontal cortex pyramidal corticothalamic projecting cell	input resistance (MΩ)	58.1 ± 10.6 (53)	58.1 (MΩ)	Data Table
Neocortex pyramidal cell layer 2-3	Layer 2/3 frontal cortex corticocortical pyramidal cell projecting to perirhinal cortex	membrane time constant (ms)	20.1 ± 5.7 (58)	20.1 (ms)	Data Table
Neocortex pyramidal cell layer 5-6	Layer 5a frontal cortex corticocortical pyramidal cell projecting to perirhinal cortex	membrane time constant (ms)	18.3 ± 3.6 (53)	18.3 (ms)	Data Table
Neocortex pyramidal cell layer 5-6	Layer 5 frontal cortex pyramidal corticothalamic projecting cell	membrane time constant (ms)	12.5 ± 2.7 (53)	12.5 (ms)	Data Table
Neocortex pyramidal cell layer 2-3	Layer 2/3 frontal cortex corticocortical pyramidal cell projecting to perirhinal cortex	rheobase (pA)	263.0 ± 65.0 (58)	263.0 (pA)	Data Table
Neocortex pyramidal cell layer 5-6	Layer 5a frontal cortex corticocortical pyramidal cell projecting to perirhinal cortex	rheobase (pA)	148.0 ± 36.0 (53)	148.0 (pA)	Data Table
Neocortex pyramidal cell layer 5-6	Layer 5 frontal cortex pyramidal corticothalamic projecting cell	rheobase (pA)	212.0 ± 54.0 (53)	212.0 (pA)	Data Table
Neocortex pyramidal cell layer 2-3	Layer 2/3 frontal cortex corticocortical pyramidal cell projecting to perirhinal cortex	FI slope	0.67 ± 0.11 (58)	0.67 (Hz/nA)	Data Table