During each cycle, confluent cultures were subjected to vigorous shaking to dislodge neurons, which were then discarded.
We found that 51 trials were necessary for the CN neuron to start eliciting a vigorous CR that completely suppressed spike generation by the IO neuron, whereas 19 trials were sufficient in the normal case.
IR-time course analysis of Ctrl neurons at D30 showed a vigorous ATM-dependent phosphorylation of SMC1-S966, KAP1-S824, Chk2-T68, p53-S15 and γ-H2AX, while this response was repressed in A-T neurons.
Hence, a particular set of conductance parameters that was effective in driving vigorous firing in a type I or II neuron was usually ineffective for a type III neuron.
At the 19th trial the neuron fired more spikes, representing a vigorous CR.
This increasing lag gave excitatory neurons a larger window of opportunity, leading to more vigorous excitatory firing followed by more sustained inhibitory firing that produced a decrease in oscillation frequency.
Because thalamic neurons in areas innervated by basal ganglia or cerebellar nuclei are under vigorous GABAergic (inhibitory) or glutamatergic (excitatory) bombardment, respectively, they should be readily distinguished by their spontaneous firing rates and patterns.
Hence, while CNS and PNS neurons cope with many similar challenges inherent to their high oxygen consumption and vigorous metabolism, PNS neurons are also exposed to circulating toxins and inflammatory mediators due to relative permeability of PNS blood nerve barrier (BNB).
As augmenting firing frequency in DA neurons enhances DA release (Sulzer, 2011), and CNO stimulation of successfully transduced DAT-Cre mice evokes vigorous firing of dopamine neurons (Wang et al., 2013), CNO is expected to increase DA release.
When the leading sound ends, neurons representing the lag location may begin to fire (Fig. 2E) but the response is less vigorous and roughly equivalent to that which occurs near the end of the single-source PSTH (Fig. 2A).
