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Article: Spontaneous bursting activity in the developing entorhinal cortex.

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Sheroziya MG; von Bohlen Und Halbach O; Unsicker K; Egorov AV
J. Neurosci., 2009


Table 1.

Quantitative parameters of the fp events at different postnatal periods

Period Peak of amplitude (mV) Duration (s) Frequency (Hz)
P1–P4
    fp events in mEC (n = 6) 0.03 ± 0.01 0.7 ± 0.3 ∼0.004
    fp events in CA3 (n = 29) 0.09 ± 0.06 0.7 ± 0.2 0.07 (pFE)
P5–P7
    Selective presence
        fp-sharp (n = 34) 0.16 ± 0.1 0.9 ± 0.36 0.08 (pFE)
        fp bursts (n = 11) 0.1 ± 0.08 3.5 ± 1.2 0.06 (pFE)
    Simultaneous presence(n = 8)
        For fp-sharp 0.08 ± 0.05 1.19 ± 0.5
        For fp bursts 0.09 ± 0.06 3.5 ± 2
P8–P10
    fp-sharp (n = 4) 0.08 ± 0.01 1.7 ± 0.3 0.16 ± 0.1
    fp bursts (n = 22) 0.03 ± 0.02 3.2 ± 0.8 0.1 ± 0.05
P11–P13
    fp bursts (n = 37) 0.04 ± 0.02 4.8 ± 2.5 0.14 ± 0.06
  • Averaged data are given as mean ± SD. Recordings were made in ACSF containing 1.6 mm Ca2+. At P1–P4, 1–4 events per 10 min were detected in the mEC LIII. At P5–P13, all recordings were made in the mEC LIII. For P5–P7, parameters are calculated for slices with selective presence of sharp fp events or fp bursts and for slices with simultaneous appearance of both forms of fp activity.


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