pause / play: a pause waits for the next output spike and stops on it (press again to cancel); the buttons Pause and Play do each half
c
motif mode: the latest output spike is the reference, drawn in the colour of its neuron, with the 41 ms before it
n / b
next / back, output spike by output spike (with the motif mode, the reference moves)
d
with the motif mode, paused: explains one output spike in 3 presses — (1) the spike and the dashed box of the 41 ms before it, (2) the input spikes of its motif, in its colour, (3) the delays, animated from the past to the present: a spike slides along each connection to the output neuron and they all arrive together on its spike (b then d replays it); a 4th press goes to the next output spike. While playing: show / hide the live connections, an arrow drawn from each input spike along all its connections (the motif which appears strong and coloured before its output spike, the others pale, inhibitory dashed with a bar); the time is slowed to ×0.1 while a motif appears
s
scenario: the presentation step by step, one step per press (shift + S: the previous step); the caption says what is shown
w
shade the last 41 ms before the present (always shown with the motif mode and in zen mode)
k / l
slower / faster
r
reset the view (the 3 s period, speed ×1) and the colours
f / z
fullscreen / zen mode (no interface; the only text is the width of the time window and the speed, or «paused»; z leaves it)
? or h
this help
Reading the raster
top
128 input neurons: spikes only
frame
5 output LIF neurons with delays up to 41 ms: membrane potential u from −1 (reset) to 0 (threshold), with background excitatory and inhibitory synapses; a spike is drawn up to 2.5
Trackpad and mouse
two-finger scroll
horizontal: move in time (pauses)
pinch
zoom the time window (ctrl + wheel)
Touch screen
one finger
drag to move in time
two fingers
spread horizontally = zoom the time window · moving both = move in time