Fig. 2 | Nature Communications

Fig. 2

From: Vibration hotspots reveal longitudinal funneling of sound-evoked motion in the mammalian cochlea

Fig. 2

A vibration hotspot at low sound levels in the organ of Corti. a OCT reflectance image (grayscale), with structural framework of Corti’s organ (yellow) superimposed for reference. Scale bar (bottom), 0.05 mm. b Underlying anatomical structures, labeled as in Fig. 1c. c Map of vibration magnitudes evoked by the 22.6 kHz component of a multi-tone stimulus at 40 dB SPL. Magnitudes are expressed in decibels relative to the 3-nm maximum observed at the location marked with an asterisk. Measurement beam ordinates are indicated at the base of the map using gray arrowheads, and the axial (vertical, z) resolution is ~8 µm. Vibrations clearly focus on a hotspot that encompasses the OHC and Deiters’ cell bodies, and sits well within the boundaries of the organ of Corti’s structure (gray framework). Scale bar, 0.05 mm. Preparation RG16725, CF 23 kHz