Auditory brain stem responses in characterization of dolphin hearing

Vv, Popov; Supin, Alexander Ya.

doi:10.1007/bf00204811

Cited by 97 publications

(63 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In bottlenose dolphins, Popov and Supin (Popov and Supin, 1990b) showed that the best ABR recording occurred when the electrode was positioned 6-9cm caudal to the blowhole. Similarly, in the present study, ABR waves had the highest amplitudes when the recording electrode was positioned ~9cm posterior to the blowhole (i.e.…”

Section: Electrode Placement and Wave Mappingmentioning

confidence: 99%

“…The use of AEP techniques to measure hearing sensitivity of odontocetes has become increasingly popular (e.g. Popov and Supin, 1990a;Popov and Supin, 1990b;Szymanksi et al, 1999;Andre et al, 2003;Nachtigall et al, 2004;Yuen et al, 2005;Cook et al, 2006;Houser and Finneran, 2006a;Mooney et al, 2008;Nachtigall et al, 2008;Mooney et al, 2009). Thus, a powerful tool to learn more about the hearing of live-stranded cetaceans, particularly those that are rare or endangered, would be to combine CT imaging and AEP techniques.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Live CT imaging of sound reception anatomy and hearing measurements in the pygmy killer whale, Feresa attenuata

Montie

Manire

Mann

2011

Journal of Experimental Biology

View full text Add to dashboard Cite

SUMMARYIn June 2008, two pygmy killer whales (Feresa attenuata) were stranded alive near Boca Grande, FL, USA, and were taken into rehabilitation. We used this opportunity to learn about the peripheral anatomy of the auditory system and hearing sensitivity of these rare toothed whales. Three-dimensional (3-D) reconstructions of head structures from X-ray computed tomography (CT) images revealed mandibles that were hollow, lacked a bony lamina medial to the pan bone and contained mandibular fat bodies that extended caudally and abutted the tympanoperiotic complex. Using auditory evoked potential (AEP) procedures, the modulation rate transfer function was determined. Maximum evoked potential responses occurred at modulation frequencies of 500 and 1000Hz. The AEP-derived audiograms were U-shaped. The lowest hearing thresholds occurred between 20 and 60kHz, with the best hearing sensitivity at 40kHz. The auditory brainstem response (ABR) was composed of seven waves and resembled the ABR of the bottlenose and common dolphins. By changing electrode locations, creating 3-D reconstructions of the brain from CT images and measuring the amplitude of the ABR waves, we provided evidence that the neuroanatomical sources of ABR waves I, IV and VI were the auditory nerve, inferior colliculus and the medial geniculate body, respectively. The combination of AEP testing and CT imaging provided a new synthesis of methods for studying the auditory system of cetaceans. Supplementary material available online at

show abstract

Section: Electrode Placement and Wave Mappingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Live CT imaging of sound reception anatomy and hearing measurements in the pygmy killer whale, Feresa attenuata

Montie

Manire

Mann

2011

Journal of Experimental Biology

View full text Add to dashboard Cite

show abstract

“…Actual threshold determinations can be conducted in several 4 ways (Finneran, et al, 2007a;Nachtigall, et al, 2007;Supin and Popov, 2007 Electrohysiological auditory measurement techniques have been established for several 10 decades in marine mammals. Initially, the methods varied, electrophysiological tools adapted for 11 marine mammals were not widely available, the experiments were often invasive, and the 12 methods were not widely applied (Bullock, et al, 1968;Popov and Supin, 1990;Ridgway, et al, 13 1981). Early studies initially required anesthesia, a major accomplishment for animals which 14 respire voluntarily (Ridgway and McCormick, 1967).…”

Section: The Auditory Evoked Potential (Aep) Methods 16mentioning

confidence: 99%

“…Using operant conditioning, Thompson and 19 Herman demonstrated that dolphins can distinguish two sounds that differ in frequency by only 20 0.2-0.3%, displaying remarkably precise frequency analyses (1975). 21 Amongst these early AEP studies was the establishment of non-invasive methods which 22 recorded responses from the surface of the skin (Seeley, et al, 1976 Early non-invasive dolphin AEP measurements were stimulated with tone pips and 6 revealed dolphin AEP responses involving a series of 5-7 neurophysiological "wave" responses 7 (Popov and Supin, 1985;Popov and Supin, 1990). An efficient and reliable method to obtain 8 AEP hearing thresholds has used the envelope following response (EFR) or auditory steady state 9 response (ASSR; Supin and Popov, 1995).…”

Section: The Auditory Evoked Potential (Aep) Methods 16mentioning

confidence: 99%

Hearing in Cetaceans: From Natural History to Experimental Biology

Mooney

Yamato

Branstetter

2012

Advances in Marine Biology

View full text Add to dashboard Cite

1Sound is the primary sensory cue for most marine mammals, and this is especially true for 2 cetaceans. To passively and actively acquire information about their environment, cetaceans 3 have perhaps the most derived ears of all mammals, capable of sophisticated, sensitive hearing 4 and auditory processing. These capabilities have developed for survival in an underwater world 5 where sound travels five times faster than in air, and where light is quickly attenuated and often 6 limited at depth, at night, and in murky waters. Cetacean auditory evolution has capitalized on 7 the ubiquity of sound cues and the efficiency of underwater acoustic communication. The sense 8 of hearing is central to cetacean sensory ecology, enabling vital behaviors such as locating prey, 9 detecting predators, identifying conspecifics, and navigating. Increasing levels of anthropogenic 10 ocean noise appears to influence many of these activities. 11Here we describe the historical progress of investigations on cetacean hearing, with a 12 particular focus on odontocetes and recent advancements. While this broad topic has been 13 studied for several centuries, new technologies in the last two decades have been leveraged to 14 improve our understanding of a wide range of taxa, including some of the most elusive species. 15 This paper addresses topics including how sounds are received, what sounds are detected, 16 hearing mechanisms for complex acoustic scenes, recent anatomy and physiology studies, the 17 potential impacts of noise, and mysticete hearing. We conclude by identifying emerging 18 research topics and areas which require greater focus. 19 20 3

show abstract

“…We investigated temporal processing using auditory evoked potentials (AEPs). AEPs measure neural activity from the auditory nerve and brainstem in response to acoustic stimuli, and they are a common tool for studying auditory processing in humans and other animals (Brittan-Powell et al, 2010a,b;Gall et al, 2013;Hall, 2007;Henry and Lucas, 2008;Higgs et al, 2002;Katbamna et al, 1992;Kenyon et al, 1998;Ladich and Fay, 2013;Popov and Supin, 1990;Supin et al, 1993). We used two well-established AEP techniques that have been used previously to investigate temporal processing: the auditory steady-state response (ASSR) evoked by AM tones and the auditory brainstem response (ABR) evoked by paired acoustic clicks (Burkard and Deegan, 1984;Dolphin and Mountain, 1992;Gall et al, 2013;Henry and Lucas, 2008;Mann et al, 2005;Purcell et al, 2004;Wysocki and Ladich, 2005).…”

Section: Introductionmentioning

confidence: 99%

Evolutionary adaptations for the temporal processing of natural sounds by the anuran peripheral auditory system

Schrode

Bee

2015

Journal of Experimental Biology

View full text Add to dashboard Cite

Sensory systems function most efficiently when processing natural stimuli, such as vocalizations, and it is thought that this reflects evolutionary adaptation. Among the best-described examples of evolutionary adaptation in the auditory system are the frequent matches between spectral tuning in both the peripheral and central auditory systems of anurans (frogs and toads) and the frequency spectra of conspecific calls. Tuning to the temporal properties of conspecific calls is less well established, and in anurans has so far been documented only in the central auditory system. Using auditoryevoked potentials, we asked whether there are species-specific or sex-specific adaptations of the auditory systems of gray treefrogs (Hyla chrysoscelis) and green treefrogs (H. cinerea) to the temporal modulations present in conspecific calls. Modulation rate transfer functions (MRTFs) constructed from auditory steady-state responses revealed that each species was more sensitive than the other to the modulation rates typical of conspecific advertisement calls. In addition, auditory brainstem responses (ABRs) to paired clicks indicated relatively better temporal resolution in green treefrogs, which could represent an adaptation to the faster modulation rates present in the calls of this species. MRTFs and recovery of ABRs to paired clicks were generally similar between the sexes, and we found no evidence that males were more sensitive than females to the temporal modulation patterns characteristic of the aggressive calls used in male-male competition. Together, our results suggest that efficient processing of the temporal properties of behaviorally relevant sounds begins at potentially very early stages of the anuran auditory system that include the periphery.

show abstract

Auditory brain stem responses in characterization of dolphin hearing

Cited by 97 publications

References 5 publications

Live CT imaging of sound reception anatomy and hearing measurements in the pygmy killer whale, Feresa attenuata

Live CT imaging of sound reception anatomy and hearing measurements in the pygmy killer whale, Feresa attenuata

Hearing in Cetaceans: From Natural History to Experimental Biology

Evolutionary adaptations for the temporal processing of natural sounds by the anuran peripheral auditory system

Contact Info

Product

Resources

About