Electroencephalographic signals synchronize with behaviors and are sexually dimorphic during the light–dark cycle in reproductive frogs

Fang, Guangzhan; Xue, Fei; Cui, Jianguo; Brauth, Steven E.; Tang, Yezhong

doi:10.1007/s00359-013-0866-y

Cited by 10 publications

(12 citation statements)

References 68 publications

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“…Furthermore, previous behavioral and electrophysiological studies have shown REA for recognizing conspecific signals in this species (Fang et al 2014b;Xue et al 2015), and that left mesencephalic lateralization of EEG power is more pronounced in the reproductive than in the non-reproductive stage (Fang et al 2011). EEG studies also reveal sexual dimorphism in dark-light activity patterns (Yang et al 2014). Since sexual selection in anurans is highly dependent on acoustic communication, the existence of lateralized EEG response changes in this species related to the biological significance of acoustic stimuli, reproductive status, and sex suggests that the music frog is an ideal model to investigate auditory function networks involved in mate choice.…”

Section: Introductionmentioning

confidence: 78%

A lateralized functional auditory network is involved in anuran sexual selection

et al. 2016

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Right ear advantage (REA) exists in many land vertebrates in which the right ear and left hemisphere preferentially process conspecific acoustic stimuli such as those related to sexual selection. Although ecological and neural mechanisms for sexual selection have been widely studied, the brain networks involved are still poorly understood. In this study we used multi-channel electroencephalographic data in combination with Granger causal connectivity analysis to demonstrate, for the first time, that auditory neural network interconnecting the left and right midbrain and forebrain function asymmetrically in the Emei music frog (Babina daunchina), an anuran species which exhibits REA. The results showed the network was lateralized. Ascending connections between the mesencephalon and telencephalon were stronger in the left side while descending ones were stronger in the right, which matched with the REA in this species and implied that inhibition from the forebrain may induce REA partly. Connections from the telencephalon to ipsilateral mesencephalon in response to white noise were the highest in the non-reproductive stage while those to advertisement calls were the highest in reproductive stage, implying the attention resources and living strategy shift when entered the reproductive season. Finally, these connection changes were sexually dimorphic, revealing sex differences in reproductive roles.[Xue F, Fang G, Yue X, Zhao E, Brauth SE and Tang Y 2016 A lateralized functional auditory network is involved in anuran sexual selection. J.

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Section: Introductionmentioning

confidence: 78%

A lateralized functional auditory network is involved in anuran sexual selection

et al. 2016

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“…The tanks were placed in a room under controlled temperature (23±1°C) and relative humidity (70-80%) with a 12 h:12 h light:dark cycle (lights on at 08:00 h) using a fluorescent lamp. The animals were fed live crickets (bought from a pet food shop) every 3 days according to our previous study (Fang et al, , 2014b(Fang et al, , 2012Yang et al, 2014). About 50 crickets were provided to each box, not all of which were eaten.…”

Section: Animalsmentioning

confidence: 99%

“…Previous studies have shown that the frogs are active during these times of the night (Yang et al, 2014). Each subject was placed under the cover and allowed to move freely inside.…”

Section: Test Proceduresmentioning

confidence: 99%

The biological significance of acoustic stimuli determines ear preference in the music frog

Xue

Fang

Zhao

et al. 2015

Journal of Experimental Biology

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Behavioral and neurophysiological studies support the idea that right ear advantage (REA) exists for perception of conspecific vocal signals in birds and mammals. Nevertheless, few studies have focused on anuran species that typically communicate through vocalization. The present study examined the direction and latencies of orientation behaviors in Emei music frogs (Babina daunchina) produced in response to six auditory stimuli emitted by a speaker placed directly behind the subjects. The stimuli included male advertisement calls produced from within burrow nests, which have been shown to be highly sexually attractive (HSA), calls produced from outside burrows, which are of low sexual attractiveness (LSA), screech calls produced when frogs are attacked by snakes, white noise, thunder and silence. For all sound stimuli except the screech, the frogs preferentially turned to the right. Right ear preference was strongest for HSA calls. For the screech and thunder stimuli, there was an increased tendency for subjects to move further from the speaker rather than turning. These results support the idea that in anurans, right ear preference is associated with perception of positive or neutral signals such as the conspecific advertisement call and white noise, while a left ear preference is associated with perception of negative signals such as predatory attack.

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“…daunchina remains active throughout the day except for the periods around noon and midnight [10,37], with the highest levels of activity occurring at dawn and dusk. For this reason the experiments began at 20:30.…”

Section: Data Acquisitionmentioning

confidence: 99%

Right ear advantage for vocal communication in frogs results from both structural asymmetry and attention modulation

Fang

Xue

Cui

et al. 2014

Behavioural Brain Research

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Electroencephalographic signals synchronize with behaviors and are sexually dimorphic during the light–dark cycle in reproductive frogs

Cited by 10 publications

References 68 publications

A lateralized functional auditory network is involved in anuran sexual selection

A lateralized functional auditory network is involved in anuran sexual selection

The biological significance of acoustic stimuli determines ear preference in the music frog

Right ear advantage for vocal communication in frogs results from both structural asymmetry and attention modulation

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