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Article: Properties of precise firing synchrony between synaptically coupled cortical interneurons depend on their mode of coupling.

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Hu H; Agmon A
J. Neurophysiol., 2015

Table 3.

Multiple linear regression of the JBSI on uIPSP, ECC, and driver firing rate

ValueSEP Value
SOM pairs
    ECC β0.650.10<10-6
    Driver rate β0.300.100.005
FS pairs
    uIPSP β0.530.08<10-6
    ECC β0.310.080.0001
    Driver rate β0.270.080.002
FS pairs
    uIPSP β0.450.07<10-6
    Coupled Y/N? β0.380.071×10-6
    Driver rate β0.300.080.0002
  • Multiple linear regression of the Jitter-Based Synchrony Index (JBSI) shows relative contributions of electrical coupling (ECC, electrical coupling coefficient), inhibitory synaptic connections (unitary IPSP, uIPSP), and driver firing rate to pairwise synchrony in SOM (N = 49 pairs) and FS (N = 80 pairs) interneurons. Replacing the ECC in FS cells with a categorical variable (coupled/not coupled; 2nd set of data for FS pairs) increased the R2 value and approximately equalized the contributions of electrical and chemical coupling (see text).

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