A hierarchical sparse coding model predicts acoustic feature encoding in both auditory midbrain and cortex
Fig 3
Visualization of the representative bases in layer S2 along with typical STRFs of the inferior colliculus neurons in animals.
(a–d) STRFs of several typical layer S2 units. Curves denote the spectral and temporal profiles obtained by SVD. (a) Two ON-type units. (b) Two OFF-type units. (c) Two localized checkerboard units. (d) Two spectral motion units. Similar STRFs of typical inferior colliculus neurons have been observed in physiological experiments. One can compare (a) with Fig 3E in [34], (b) with Fig 6A in [23], (c) with Fig 7A in [23] and (d) with Fig 6C in [29].