Softer sound appears closer to midline than louder sound, conflicting with a labelled-line representation of auditory space and supporting the idea that humans use rate coding when calculating sound directionality.
Computer simulations of interaural time difference decoders show that heterogeneous tuning of binaural neurons leads to accurate sound localization in natural environments.
The accuracy of the Hybrid Vocalization Localizer (HyVL) brings a revolution to the study of social vocalizations of rodents and other animals, where vocalizations often occur in close proximity, and will empower downstream analysis of sequence and semantic analyses.
Peter Keating, Onayomi Rosenior-Patten ... Andrew J King
Training enables adult humans to rapidly adapt their sound localization abilities to unilateral hearing loss by combining different strategies that rely on partially distinct neurophysiological substrates.
Ursula Kwong-Brown, Martha L Tobias ... Darcy B Kelley
When ancestral Xenopus returned to water ~170mya, they evolved a new method for producing courtship calls underwater without airflow, using vibrations that also preserve essential acoustic information on species identity.
Joshua P Neunuebel, Adam L Taylor ... SE Roian Egnor
A microphone array enables the vocal contribution of each socially interacting individual to be quantified, and reveals that vocalizations are exchanged between the sexes during mouse courtship.
The location of impact sounds, common stimuli whose detection is crucial for survival, is encoded by a precise interaction between excitation and inhibition rather than coincidence detection of excitatory events.
The juvenile barn owl displays wide heterogeneity in tuning properties in the auditory midbrain, which is shaped during development to match the pattern of sensory statistics experienced in early life and maintained into adulthood.