PMID: 8965258Jan 1, 1996Paper

Directional hearing by mechanical coupling in the parasitoid fly Ormia ochracea

Journal of Comparative Physiology. A, Sensory, Neural, and Behavioral Physiology
D RobertR R Hoy

Abstract

Sound localization is a basic processing task of the auditory system. The directional detection of an incident sound impinging on the ears relies on two acoustic cues: interaural amplitude and interaural time differences. In small animals, with short interaural distances both amplitude and time cues can become very small, challenging the directional sensitivity of the auditory system. The ears of a parasitoid fly Ormia ochracea, are unusual in that both acoustic sensors are separated by only 520 microns and are contained within an undivided air-filled chamber. This anatomy results in minuscule differences in interaural time cues (ca. 2 microseconds) and no measurable difference in interaural intensity cues generated from an incident sound wave. The tympana of both ears are anatomically coupled by a cuticular bridge. This bridge also mechanically couples the tympanana, providing a basis for directional sensitivity. Using laser vibrometry, it is shown that the mechanical response of the tympanal membranes has a pronounced directional sensitivity. Interaural time and intensity differences in the mechanical response of the ears are significantly larger than those available in the acoustic field. The tympanal membranes vibrate with ...Continue Reading

Citations

Dec 29, 2005·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Calvin C K Ho, Peter M Narins
Mar 3, 2009·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Natasha MhatreDaniel Robert
Jun 19, 2010·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Megan D Gall, Jeffrey R Lucas
Dec 20, 2002·Current Opinion in Neurobiology·Daniel Robert, Martin C Göpfert
Oct 29, 2008·Bulletin of Entomological Research·E J TuckD Robert
Apr 1, 2009·Proceedings of the National Academy of Sciences of the United States of America·Norman LeeAndrew C Mason
Sep 14, 2013·Science·Malcolm Burrows, Gregory Sutton
Jan 28, 2006·Audiology & Neuro-otology·R N Miles, R R Hoy
Dec 24, 2015·Biological cybernetics·Heiner Römer, Arne K D Schmidt
May 2, 2014·Frontiers in Physiology·Manfred Hartbauer, Heiner Römer
Sep 29, 2006·The Journal of the Acoustical Society of America·Ben J Arthur, Ronald R Hoy
Dec 10, 2008·The Journal of the Acoustical Society of America·Murat Akcakaya, Arye Nehorai
Aug 24, 2013·Scientific Reports·Haijun LiuMiao Yu
Nov 6, 2014·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Reinhard Lakes-Harlan, Gerlind U C Lehmann
Dec 22, 1999·Microscopy Research and Technique·D D Yager
Jul 15, 2004·Microscopy Research and Technique·Andrew C Mason, Paul A Faure
Sep 19, 2014·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Heiner Römer
Apr 5, 2001·Nature·P M Narins
Mar 28, 2008·Bioinspiration & Biomimetics·Axel Michelsen, Ole Naesbye Larsen
Aug 30, 2005·The Journal of Comparative Neurology·Elena Sivan-Loukianova, Daniel F Eberl
Nov 12, 2010·Bioinspiration & Biomimetics·Murat Akçakaya, Arye Nehorai
Dec 17, 2014·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Natasha Mhatre
Jan 1, 2012·Insects·Joel M Book, Samuel F Asokanthan
Nov 14, 2016·Biological cybernetics·J Leo van HemmenPeter M Narins
Aug 2, 2020·The Journal of Experimental Biology·Heiner Römer
May 17, 2011·The Journal of the Acoustical Society of America·A P LisiewskiD Gee
Oct 23, 2004·The Journal of Experimental Biology·Brian S Nelson, Roderick A Suthers
Dec 6, 2005·The Journal of Experimental Biology·Andrew C MasonMichael L Oshinsky

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.