Jan stegenga universiteit twente

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Selective adaptation in networks of cortical neurons. One hypothesis about the mechanism involved is that the oscillation of inhibitory neurons modulates the excitability of neurons that are postsynaptic to the stimulated neuron and consequently modulate the direction of change During mRBS, the same pulse was used for all electrodes. Simultaneous induction of pathway-specific potentiation and depression in networks of cortical neurons. The bin width used was 5 ms. Geinisman Y. We sinusoidally modulated 4 Hz the pulse rate of random background stimulation RBS and found that cultures were more active, burst less frequently, and expressed oscillatory activity. Based on the array-wide PSTHs, a selection of 10—13 electrodes was made for further use. Chiappalone M.

  • PhaseDependent Effects of Stimuli Locked to Oscillatory Activity in Cultured Cortical Networks
  • PhaseDependent Effects of Stimuli Locked to Oscillatory Activity in Cultured Cortical Networks
  • EMBC'08 Paper Abstract
  • Loop Enrico Marani

  • Jan Stegenga's 3 research works with 89 citations and reads, including: Jan Stegenga's research while affiliated with University of Twente and other. Jan Stegenga of INCAS³, Assen with expertise in Neurology, Geriatrics, Neuroscience. Vrije Universiteit Amsterdam. Tjitske Heida. University of Twente.

    PhaseDependent Effects of Stimuli Locked to Oscillatory Activity in Cultured Cortical Networks

    Jan Stegenga. Electronic Product Developer. Zwolle en omgeving, Nederland. Onderzoek en wetenschap. Onethinx.

    PhaseDependent Effects of Stimuli Locked to Oscillatory Activity in Cultured Cortical Networks

    Kalsbeek BV. University of Twente. Eprints .
    Abstract The archetypal activity pattern in cultures of dissociated neurons is spontaneous network-wide bursting.

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    Results Biomed. The electrodes were numbered in matrix form e. One hypothesis about the mechanism involved is that the oscillation of inhibitory neurons modulates the excitability of neurons that are postsynaptic to the stimulated neuron and consequently modulate the direction of change Curve 3 shows the interstimulus interval distribution.

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    The firing rates of individual neurons during a burst for one particular example are shown in Fig.

    images jan stegenga universiteit twente

    Tetani were repeated every 5 s during 6 min of mRBS see Fig. We found that changes in the magnitude of responses were pathway-specific and indeed depended on the phase at which the tetani were delivered.

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    Thresholds were adjusted to the culture's activity. The probability of activation i.

    EMBC'08 Paper Abstract

    Romijn H. Support Center Support Center.

    Jan Stegenga, E-mail: [email protected] Mathematics, and Computer Science, University of Twente, Enschede, The Netherlands. Jan. Jan Stegenga, Joost le Feber, [.

    Loop Enrico Marani

    . and Technical Medicine, University of TwenteEnschede, The Netherlands. Jan Stegenga: [email protected] Results 1 - 50 of 71 Timmerman, J. G., 18 JanEnschede: University of Twente. p. . Stegenga, J., 16 JanEnschede: University of Twente. p.
    Therefore, the results from the burst analysis may have been negatively influenced, especially when one considers that probe stimuli were delivered during these two blocks of 15 min, which may alter activity patterns by themselves Such an observation argues against the possibility that the excitability of the stimulated neuron was somehow changed.

    Huerta P. Ben-Ari Y. Natural patterns of activity and long-term synaptic plasticity.

    images jan stegenga universiteit twente

    images jan stegenga universiteit twente
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    Figure 3. This also vastly reduced the amount of PSTHs that merely contained direct responses i.

    To examine the effect of our interventions on spontaneous activity, we recorded 30 min of bursting activity before and after each intervention Fig. Tetani were repeated every 5 s during 6 min of mRBS see Fig. Huerta P.

    images jan stegenga universiteit twente

    Previous studies have shown that the spatiotemporal patterns of activity during bursts are stable over periods of several hours 26—28 but can also be changed by proper electrical stimuli 29—