hearing
- Ontogenetic change in predicted acoustic pressure sensitivity in larval red drum (Sciaenops ocellatus)
Summary: Computed tomography imagery in a finite-element model predicts that larval fishes detect acoustic pressure but that this pressure sensitivity declines ontogenetically, likely altering the detection and use of acoustic cues.
- Sexually dimorphic swim bladder extensions enhance the auditory sensitivity of female plainfin midshipman fish, Porichthys notatus
Highlighted Article: Saccular potential recordings reveal that the rostral horn-like extensions of the swim bladder in female plainfin midshipman enhance auditory sensitivity to sound pressure and higher frequencies.
- Internally coupled middle ears enhance the range of interaural time differences heard by the chicken
Summary: The interaural time differences that chickens can use for sound localization are significantly greater than their small head size suggests. Closed-field sound stimulation and skull openings can, however, produce complex artefacts.
- Sound localization behavior in Drosophila melanogaster depends on inter-antenna vibration amplitude comparisons
Highlighted Article: Walking Drosophila melanogaster steer toward sounds to their front, but away from sounds to their rear. These behaviors are explained by a simple rule: flies steer away from the antenna with the larger vibration amplitude.
- The influence of bat echolocation call duration and timing on auditory encoding of predator distance in noctuoid moths
Summary: Constraints on the activity of auditory receptor cells in moths limits the ability of moth ears to encode information about distance for bats that use short echolocation calls.
- Behavioural responses to infrasonic particle acceleration in cuttlefish
Editors’ Choice: Cuttlefish exhibit jet-propulsed escape responses adapted to the hydrodynamic signatures generated by predators in the initial approach phase of an attack.
- Acoustic communication in terrestrial and aquatic vertebrates
Summary: Aquatic and terrestrial vertebrates differ in their mechanisms of acoustic communication primarily because of their phylogenetic history and less so because of the physical differences between media.
- Frequency channel-dependent selectivity for temporal call characteristics in gray treefrogs, Hyla versicolor
Summary: Nervous systems process and integrate information from multiple components of complex signals. Frogs process acoustic signals in two different frequency channels, which vary in their temporal sensitivity.
- Influence of fatiguing noise on auditory evoked responses to stimuli of various levels in a beluga whale, Delphinapterus leucas
Summary: Investigation of the effects of a fatiguing sound on the hearing of a beluga whale within a wide range of levels of test signals shows that fatiguing noise exposure reduces responses to supra-threshold signals.
- The effects of call-like masking diminish after nightly exposure to conspecific choruses in green treefrogs (Hyla cinerea)
Summary: Hearing dynamic social stimuli, like frog choruses, can alter the responses of the auditory periphery in a way that could enhance detection of and response to conspecific acoustic communication.