It’s no secret that artists are known for incorporating hidden messages in their work, from The Beatles’ track ‘Lucy in the Sky with Diamonds’ spelling LSD to the backmasking of Missy Elliot’s "flip ...

Current sleep staging practice consists of visual analysis of 30-second segments of raw EEG wave forms (top) and subjective categorization into sleep stages to create a hypnogram (middle), which is ...

The app includes a categorized library of vocalizations tied to social and behavioural cues; a spectrogram tool to explore pitch, rhythm and tone; and an interactive quiz to test users' interpretation ...

An example of a spectrogram, which scientists use to highlight sound sources based on their visual signatures. Credit must be given to the creator. Only noncommercial uses of the work are permitted.