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Article: Microcircuits of excitatory and inhibitory neurons in layer 2/3 of mouse barrel cortex.

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Avermann M; Tomm C; Mateo C; Gerstner W; Petersen CC
J. Neurophysiol., 2012

Table 2.

Synaptic connectivity and uPSP amplitudes in L2/3 of mouse barrel cortex

    P, % (found/tested)16.8% (16/95)60.0% (21/35)46.5% (20/43)
    Mean ± SE, mV0.37 ± 0.10-0.52 ± 0.11-0.49 ± 0.11
    Median, mV0.20-0.29-0.30
    Range, mV0.06-1.42-0.10 to -1.55-0.10 to -2.00
    P, % (found/tested)57.5% (23/40)55.0% (11/20)37.9% (11/29)
    Mean ± SE, mV0.82 ± 0.10-0.56 ± 0.14-0.37 ± 0.10
    Median, mV0.68-0.44-0.23
    Range, mV0.16-1.94-0.07 to -1.46-0.12 to -0.99
    P, % (found/tested)24.4% (11/45)24.1% (7/29)38.1% (8/21)
    Mean ± SE, mV0.39 ± 0.11-0.83 ± 0.25-0.49 ± 0.20
    Median, mV0.19-0.60-0.15
    Range, mV0.12-1.21-0.09 to -1.85-0.07 to -1.47
  • The probability (P) of finding a synaptically connected pair of neurons with somata located in L2/3 is given as a percentage and as the ratio of the number of functional synaptic connections “found” to the number of connections “tested.” Unitary postynaptic potential (uPSP) amplitude is given as the mean ± SE, median, and range. According to a nonparametric Kruskal-Wallis test followed by Dunn's posttest, significant differences in uPSP amplitudes were found for EXC-EXC vs. EXC-FS and for EXC-FS vs. EXC-NFS. Significant differences in connectivity were assessed by a χ2 statistic on contingency table. Differences in excitatory connectivity were found for EXC-EXC vs. EXC-FS and EXC-FS vs. EXC-NFS. Differences in inhibitory connectivity were found for FS-EXC vs. FS-NFS.

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Inferred neuron-electrophysiology data values

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