Notice how you tend to selectively pick out a specific sound (e.g. your name) from a crowd of other sounds?
Teki et. al (2011) developed a new stimulus to capture the complexity of natural acoustic scenes like these. By integrating the patterns over time and frequency, they demonstrate that human listeners are remarkably sensitive to the appearance of such figures.
Read how they use neuroscience techniques (fMRI) to investigate auditory segregation mechanisms and which brain areas these mechanisms affect. This is an interesting read for those interested in neuroscience and our fascinating, complex auditory system.