Sounds evoked by brain stimulation in the oyster toadfish Opsanus tau L.

Fine, Michael L.

doi:10.1007/bf00236611

Cited by 31 publications

(14 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Opsanus tau (Cohen and Winn, 1967). In addition, through brain stimulation in Opsanus beta (Demski and Gerald, 1972;Demski and Gerald, 1974) and in O. tau (Fine, 1979;Fine and Perini, 1994), grunts were produced in the laboratory and shown to be similar to field-recorded calls of the species. Interestingly, the other agonistic vocalizations of the Lusitanian toadfish, such as croak and double-croak, were not emitted during sound recordings, because they are probably related to spacing functions and not distress.…”

Section: R O Vasconcelos and F Ladichmentioning

confidence: 99%

Development of vocalization, auditory sensitivity and acoustic communication in the Lusitanian toadfishHalobatrachus didactylus

Vasconcelos

Ladich²

2008

Journal of Experimental Biology

View full text Add to dashboard Cite

SUMMARYThe ontogenetic development of acoustic communication has so far only been investigated in one fish species. In order to determine whether detectability of conspecific sounds changes during growth in a species with limited hearing abilities (generalist), we investigated the development of auditory sensitivity and agonistic vocalizations in the Lusitanian toadfish Halobatrachus didactylus. Agonistic grunts were recorded, their sound pressure levels determined, and auditory sensitivities measured in five different size groups ranging from 3 to 32·cm standard length. Hearing thresholds were obtained using the auditory evoked potentials (AEP) recording technique. Dominant frequency, sound duration and number of pulses decreased, whereas pulse period and sound level increased with increasing fish size. The best hearing was below 300·Hz in all groups. Lower hearing sensitivity was found in the smallest juveniles at 100·Hz as well as at higher frequencies (800 and 1000·Hz). Comparisons between audiograms and sound spectra within the same-sized fish revealed that smaller juveniles would be barely able to detect agonistic grunts, while these vocalizations were clearly perceived by larger fish. In the latter, the main energy of sounds was found at the most sensitive frequencies. This study demonstrates that acoustic communication in the Lusitanian toadfish might be absent in early developmental stages and seems to start when juveniles are able to generate grunts of higher sound level and lower dominant frequency.

show abstract

Section: R O Vasconcelos and F Ladichmentioning

confidence: 99%

Development of vocalization, auditory sensitivity and acoustic communication in the Lusitanian toadfishHalobatrachus didactylus

Vasconcelos

Ladich²

2008

Journal of Experimental Biology

View full text Add to dashboard Cite

show abstract

“…Clapp states there is no distinct ganglion, and Pankratz describes a slight enlargement of the nerve. Teleosts are an extremely diverse group of vertebrates, yet the medullary lateral line projec tions have been examined in only a few nonelectric teleosts [McCormick, 1982 also see Discussion], In addition to it being an example of another nonelectric teleost, the toadfish's extensive reliance on sound pro duction for courtship and agonistic communication [Tavolga, 1958;Winn, 1972;Fine, 1978Fine, , 1979 pro- …”

Section: Introductionmentioning

confidence: 99%

Primary Connections of the Anterior and Posterior Lateral Line Nerves in the Oyster Toadfish

Rosa

Fine²

1988

Brain Behav Evol

View full text Add to dashboard Cite

This study used anterograde transport of horseradish peroxidase to identify primary projections of the anterior and posterior lateral line nerves in the oyster toadfish, Opsanus tau. Both lateralis nerves project to the nucleus medialis and nucleus caudalis, which comprise a continuous lateralis cell column. Separation between nucleus medialis and nucleus caudalis is based on cell type and position. Unlike the primitive condition, the nuclei are not obviously separable on the basis of gross topography. The anterior lateral line nerve projects to the ventral area, and the posterior lateral line nerve projects to the dorsal area of the lateralis cell column. Anterior lateral line nerve projections to nucleus medialis terminate in a larger area than do projections from the posterior lateral line nerve, suggesting that more lateralis information enters from the head than from the trunk and tail. This speculation is reasonable considering the animals''s large head and sedentary bottom existence. Both lateral line nerves project to the nucleus magnocellularis and the eminentia granularis, but only projections from the posterior lateral line nerve were seen in the granular layer of the cerebellum.

show abstract

“…In midshipman fish, a vocal pacemaker nucleus (VPN) functions as the frequency pacemaker network driving the vocal motor nucleus and VN activity, while call duration is set by a vocal pre-pacemaker network that gates and/or modulates VPN activity for the duration of a call (Chagnaud et al, 2011). In toadfish, mid-and hindbrain stimulation evoked a wide range of vocalisations, of which some examples seem to contain a P1 (Fine, 1979), but no simultaneous VN recordings were presented, which would be required to make firm conclusions about the origin of those irregularities.…”

Section: E Fmentioning

confidence: 99%

Vocal production complexity correlates with neural instructions in the oyster toadfish (Opsanus tau)

Elemans

Mensinger

Rome

2014

Journal of Experimental Biology

View full text Add to dashboard Cite

Sound communication is fundamental to many social interactions and essential to courtship and agonistic behaviours in many vertebrates. The swimbladder and associated muscles in batrachoidid fishes (midshipman and toadfish) is a unique vertebrate sound production system, wherein fundamental frequencies are determined directly by the firing rate of a vocal-acoustic neural network that drives the contraction frequency of superfast swimbladder muscles. The oyster toadfish boatwhistle call starts with an irregular sound waveform that could be an emergent property of the peripheral nonlinear soundproducing system or reflect complex encoding in the central nervous system. Here, we demonstrate that the start of the boatwhistle is indicative of a chaotic strange attractor, and tested whether its origin lies in the peripheral sound-producing system or in the vocal motor network. We recorded sound and swimbladder muscle activity in awake, freely behaving toadfish during motor nerve stimulation, and recorded sound, motor nerve and muscle activity during spontaneous grunts. The results show that rhythmic motor volleys do not cause complex sound signals. However, arrhythmic recruitment of swimbladder muscle during spontaneous grunts correlates with complex sounds. This supports the hypothesis that the irregular start of the boatwhistle is encoded in the vocal pre-motor neural network, and not caused by peripheral interactions with the sound-producing system. We suggest that sound production system demands across vocal tetrapods have selected for muscles and motorneurons adapted for speed, which can execute complex neural instructions into equivalently complex vocalisations.

show abstract

Sounds evoked by brain stimulation in the oyster toadfish Opsanus tau L.

Cited by 31 publications

References 28 publications

Development of vocalization, auditory sensitivity and acoustic communication in the Lusitanian toadfishHalobatrachus didactylus

Development of vocalization, auditory sensitivity and acoustic communication in the Lusitanian toadfishHalobatrachus didactylus

Primary Connections of the Anterior and Posterior Lateral Line Nerves in the Oyster Toadfish

Vocal production complexity correlates with neural instructions in the oyster toadfish (Opsanus tau)

Contact Info

Product

Resources

About