The transformed inputs are summed to obtain the summed input.
The summed input constitutes the variables to the activation/transfer function, g, which generates the output a i.
The higher the overall population input rate to each LN, the lower is the variability of the summed input and hence, the probability of spurious spikes.
As the trailing portion of the over-riding EPSC is often skewed by the direct response, the individual EPSC summed input is defined as 2×[the integral over the segment between the leading edge and the EPSC center].
EPSC parameters, such as the peak amplitude (defined as the difference between the amplitudes at tp and the onset), the summed
After correct detection and extraction of the events, EPSCs are subsequently analyzed and the parameters such as EPSC peak amplitudes and summed input amplitudes, EPSC rise times, EPSC latency/arrival times, and the number of EPSCs from each photostimulation site are measured (Figure 6 A).
(B ) Reinforcement processing by value (based on e.g., Heisenberg, 2003 ; Schleyer et al., 2011 ; Perisse et al., 2013 ): a reward neuron sums input from fructose and aspartic acid pathways and thus establishes a memory allowing for learned search for 'good'good
The term is a difference of 2 exponentials with different time constants: where r i(t) is the activity of unit i at time t, h i(t) is the summed input to the unit at time t, and β1 = 0.1 β2 = 0.2, and γ = 2 × 10-4 are time constants.
The definition of n i should read: n i = ∑ j w ij max ( 0, a j ) for w ij < 0. There were also errors in the definition of s i, the weighted sum of a node's current activation a i and its summed inputs p i and n i across positively and negatively weighted links, respectively.
