[dopu]

Rather interestingly, you see this sort of mirroring in other areas of neuroscience as well. One example is the simple cell receptive fields in the visual cortex [0]. If you take a natural image, slice it up into a bunch of small patches, and run independent components analysis (ICA) on them [1], you end up with patches that look a lot like simple cell receptive fields, implying that the visual system uses something very similar to ICA to process information.

In the same way, you can run ICA on human speech, and what you get back are gammatone filters, [2] which are commonly used to model the auditory system!

[0]: https://en.wikipedia.org/wiki/Simple_cell [1]: https://en.wikipedia.org/wiki/Independent_component_analysis [2]: https://en.wikipedia.org/wiki/Gammatone_filter