Pitch-sensitive Components Emerge from Hierarchical Sparse Coding of Natural Sounds

  title={Pitch-sensitive Components Emerge from Hierarchical Sparse Coding of Natural Sounds},
  author={Engin Bumbacher and Vivienne L. Ming},
The neural basis of pitch perception, our subjective sense of the tone of a sound, has been a great ongoing debates in neuroscience. [...] Key Method Motivated by gist research (Oliva and Torralba, 2006), we extended the nonlinear hierarchical generative model developed by Karklin et al. (Karklin and Lewicki, 2003) with a parallel gist pathway. The basic model encodes higher-order structure in natural sounds capturing variations in the underlying probability distribution.Expand
Learning Midlevel Auditory Codes from Natural Sound Statistics


Sparse Spectrotemporal Coding of Sounds
Topographic organization is essential for pitch perception.
  • S. Shamma
  • Computer Science, Medicine
  • Proceedings of the National Academy of Sciences of the United States of America
  • 2004
Analysis of temporal structure in sound by the human brain
Correct tonotopic representation is necessary for complex pitch perception.
Modulation spectra of natural sounds and ethological theories of auditory processing.
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