BoingBoing documents the research of Backyard Brains, which, as of late, has consisted of monitoring how playing Cyprus Hill affects a squid’s chromatophores. The results look not unlike an iTunes Visualizer:
“Greg Gage of the DIY neuroscience company Backyard Brains stimulated the axons of a squid with the electrical signals coming out of a headphone jack plugged into an iPhone playing a Cypress Hill song. He videotaped the Squid’s pigmented cells called chromatophores, which changed with the music.”