SOEN Learning Trail / temporal binding
Coincidence and Sequence Detection
Watch two flux pulses sum through downstream dynamics and see how delay becomes a readout.
An interactive showing a disynaptic superconducting dendrite as a coincidence and sequence detector. Two synaptic flux pulses with adjustable relative delay sum into a downstream leaky integrator with a threshold. The top plot shows the two inputs, their sum, the threshold, and the output signal over time. The bottom plot shows peak output versus relative delay: symmetric when the two input time constants are equal (coincidence), asymmetric when they differ (sequence). Controls set the mode, the relative delay, and the detection threshold.
input 1
input 2
summed flux
output s
Time traces — dashed line is the detection threshold
Peak output vs relative delay Δt (input 2 relative to input 1)
0.0
0.50
Peak output s
0.00
Response shape
symmetric