This is an early recording of the SpikerBox connected to a cockroach leg. The popping sounds you hear are neuronal discharges ("Spikes").  You can hear the spikes change in response to a gentle blowing on the leg (8, then a pause, then 7 more).


EarlyRecordingSession

Cockroach - SpikerBox3 copy

One is the rapid scream of a neuron dying (all the ion channels discharge..listen near the end of the 15 second file), two are normal cockroach neural activity, and one is from an experiment where I had a toothpick attached to a speaker playing Beastie Boys Paul's Boutique. The toothpick then rested on the cockroach leg, and I was recording the neural response. You can hear the neurons modulating in rhythm to the vibration of the music. Note: The backyard hiss in all the recordings is noise which can be cleaned up by any decent audio engineer

BackyardBrains