This page provides audio files where neuronal activity is “visualized” by creating music. The music is created from neuronal spikes recorded extracellularly in parietal cortex of awake and naturally-sleeping cats (taken from Destexhe et al., J Neurosci, 1999). 8 multiunit recordings were obtained with a system of 8 pairs of tungsten microelectrodes. Spikes were extracted using the BrainWave software. They were converted to MIDI, by associating each neuron to a given tone, and triggering the tone whennever this neuron fired. The MIDI files were then converted to MP3 using freeware programs. The music scores were generated by importing the MIDI files into the “Guitar Pro 5″ program.

Musique du cerveau d’un chat se réveillant ou d’un poisson qui fait de même, mais il n’y a pas celle d’un poisson chat qui s’endort…

Source : Équipe de Neurosciences Computationnelles.