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Hierarchical auditory perception for species discrimination and individual recognition in the music frog

Current Zoology 2022年第5期68卷 581-591页

作者： Yanzhu Fan Ke fang Ruolei Sun Di Shen Jing Yang Yezhong Tang guangzhan fang Chengdu Institute of Biology Chinese Academy of SciencesChengdu 610041China College of Life Sciences University of Chinese Academy of SciencesBeijing 100049China School of Life Science Anhui UniversityHefei 230601China

The ability to discriminate species and recognize individuals is crucial for reproductive success and/or survival in most ***,the temporal order and neural localization of these decision-making processes has remained *** this study,event-related potentials(ERPs)were measured in the telencephalon,diencephalon,and mesencephalon of the music frog Nidirana *** ERPs were elicited by calls from 1 group of heterospecifics(recorded from a sympatric anuran species)and 2 groups of conspecifics that differed in their fundamental *** terms of the polarity and position within the ERP waveform,auditory ERPs generally consist of 4 main components that link to selective attention(N1),stimulus evaluation(P2),identification(N2),and classification(P3).These occur around 100,200,250,and 300 ms after stimulus onset,*** results show that the N1 amplitudes differed significantly between the heterospecific and conspecific calls,but not between the 2 groups of conspecific calls that differed in fundamental *** the other hand,the N2 amplitudes were significantly different between the 2 groups of conspecific calls,suggesting that the music frogs discriminated the species first,followed by individual identification,since N1 and N2 relate to selective attention and stimuli identification,***,the P2 amplitudes evoked in females were significantly greater than those in males,indicating the existence of sexual dimorphism in auditory *** addition,both the N1 amplitudes in the left diencephalon and the P2 amplitudes in the left telencephalon were greater than in other brain areas,suggesting left hemispheric dominance in auditory *** together,our results support the hypothesis that species discrimination and identification of individual characteristics are accomplished sequentially,and that auditory perception exhibits differences between sexes and in spatial dominance.

关键词： event-related potentials(ERPs) individual identification music frog species discrimination temporal hierarchy

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Consistency in responses to conspecific advertisement calls with various signal-to-noise ratios in both sexes of the Anhui tree frog

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Current Zoology 2023年第6期69卷 718-726页

作者： Zhiyue Wang Haohao Ma Cheng Chen Ruolei Sun Kai Liu Baowei Zhang guangzhan fang School of LifeScience Anhui UniversityHefei230601China Thematic Area of Biodiversity and Ecosystem Services Chengdu Institute of BiologyChinese Academy of SciencesChengdu 610041China

Environmental noise has a significant negative impact on acoustic communication in most situations,as it influences the production,transmis-sion,and reception of acoustic ***,how animals respond to conspecific sounds when there is interference from environmental noise,and whether males and females display convergent behavioral responses in the face of noise masking remain poorly *** this study,we investigated the effects of conspecific male advertisement calls with different signal-to-noise ratios on male-male competition and female choice in the Anhui tree frog Rhacophorus zhoukaiyae using playback and phonotaxis experiments,*** results showed that(1)female Anhui tree frogs preferentially selected the conspecific calls with higher SNR compared to calls with lower SNR;(2)males preferen-tially responded vocally to the conspecific calls with higher SNR compared to calls with lower SNR;and(3)males'competitive strategies were flexible in the face of noise *** results suggest that preferences of both sexes converge in outcome,and that male competitive strategies may depend on predictable female *** study will provide an important basis for further research on decision-making in animals.

关键词： advertisement call female choice male-male competition noise signal-to-noise ratio(SNR)

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帕金森病步态障碍发生机制及动物模型

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科学通报 2023年第23期68卷 3043-3051页

作者：吴悦唐业忠方光战中国科学院成都生物研究所成都610041 四川师范大学生命科学学院成都610101

帕金森病(Parkinson’s disease,PD)是一种常见的神经退行性疾病,在65岁以上的老年人群中的发病率约为1%.PD通常伴随着静止性震颤、步态障碍、运动迟缓、肌僵直和姿势不稳等症状.PD病因极为复杂,可能与年龄、遗传、环境及行为习惯等因... 详细信息

帕金森病(Parkinson’s disease,PD)是一种常见的神经退行性疾病,在65岁以上的老年人群中的发病率约为1%.PD通常伴随着静止性震颤、步态障碍、运动迟缓、肌僵直和姿势不稳等症状.PD病因极为复杂,可能与年龄、遗传、环境及行为习惯等因素的交互作用有关.步态障碍是PD患者常见的致残症状,通常表现为步态速度降低、步长缩短、僵直程度上升和步态节律受损等;步态障碍随着病情进展而恶化,严重影响患者的运动独立性和生活质量.本文总结了运动控制的神经环路和异常步态的表型,归纳了PD动物模型特别是啮齿类动物模型的造模原理和特点,探讨了异常步态的发生机制和治疗康复进展.最后,对PD动物模型的步态控制研究方向进行了展望,并提出了可能的解决方案,以期为人类治疗PD相关症状提供诊疗思路.

关键词：帕金森病动物模型步态障碍步态控制神经机制治疗康复

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Flexibility as a Strategy for Avoiding Call Overlap in Male Anhui Treefrogs

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Asian Herpetological Research 2020年第3期11卷 230-239页

作者： Jinjin SONG Ruolei SUN Ke fang Baowei ZHANG Yezhong TANG guangzhan fang School of Life Science Anhui UniversityHefei 230601AnhuiChina Chengdu Institute of Biology Chinese Academy of SciencesChengdu 610041SichuanChina Institute of Bio-inspired Structure and Surface Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016JiangsuChina

Male-male vocal competition is critical for mating success in anuran species;however,it remains unknown that how males regulate their competitive strategies dynamically during competition because calling is highly time-consuming,energetically demanding and likely to increase predation *** different parts of calls will encode different information for vocal communication,we hypothesized that competitive strategies of male frogs may be modulated by the temporal and spectral features of different call *** test this hypothesis,the natural advertisement calls(OC),its modified versions with the first call note replaced by white noise(WN)or other notes and with the fifth call note replaced by WN,were played back to the Anhui tree frogs(Rhacophorus zhoukaiyae).Results showed that 1)males produced more competitive calls in response to acoustic stimuli compared to their baseline calling during silence;and 2)males emitted more non-overlapping calls compared to overlapping calls in response to the acoustic *** results are consistent with the idea that males are flexible to acoustic signals and their competition strategies are modulated dynamically by social contexts.

关键词： acoustic stimulus call overlap flexibility frog individual recognition male-male competition

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Behavior and Approximate Entropy of Right-eye Lateralization During Predation in the Music Frog

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Asian Herpetological Research 2020年第2期11卷 115-123页

作者： Yansu LIU Jiangyan SHEN Ke fang Jinjin SONG Yanzhu FAN Jing YANG Di SHEN fang LU guangzhan fang Sichuan Nursing Vocational College Chengdu 610100SichuanChina Chengdu Institute of Biology Chinese Academy of SciencesChengdu 610041SichuanChina School of Life Science Anhui UniversityHefei 230601AnhuiChina Department of Ophthalmology West China HospitalSichuan UniversityChengdu 610041SichuanChina

Brain asymmetry for processing visual information is widespread in ***,it is still unknown how the complexity of the underlying neural network activities represents this asymmetrical pattern in the *** the present study,we investigated this complexity using the approximate entropy(ApEn)protocol for electroencephalogram(EEG)recordings from the forebrain and midbrain while the music frogs(Nidirana daunchina)attacked prey *** results showed that(1)more significant prey responses were evoked by the prey stimulus presented in the right visual field than that in the left visual field,consistent with the idea that right-eye preferences for predatory behaviors exist in animals including anurans;(2)in general,the ApEn value of the left hemisphere(especially the left mesencephalon)was greatest under various stimulus conditions,suggesting that visual lateralization could be reflected by the dynamics of underlying neural network activities and that the stable left-hemisphere dominance of EEG ApEn may play an important role in maintaining this brain asymmetry.

关键词： approximate entropy(ApEn) complexity electroencephalogram(EEG) frog lateralization predatory behavior right-eye preference

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Coevolution of Male and Female Response Preferences to Sexual Signals in Music Frogs

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Asian Herpetological Research 2016年第2期7卷 87-95页

作者： Jianguo CUI Jichao WANG guangzhan fang Xiaowei SONG Steven E.BRAUTH Yezhong TANG Chengdu Institute of Biology Chinese Academy of Sciences Ministry of Education Key Laboratory for Tropical Animal and Plant Ecology College of Life SciencesHainan Normal University School of Life Sciences Xinyang Normal University Department of Psychology University of MarylandCollege Park

Male signaling influences both female choice and male-male competition. Although male signaling characteristics and female preferences have been shown to coevolve in many species, few studies have examined whether male signal characteristics and male receiver responses related to male-male competition also coevolve. The present study tested the hypothesis that male and female signal receiver preferences may coevolve in parallel for flogs in the genus Babina by comparing the acoustic structure of male advertisement calls of four closely related and geographically isolated Babina species. Then we assessed the behavioral responses of both male and female B. daunchina （Emei music frog） to male call playbacks from each of the four species. The results support the hypothesis that male and female signal receiver preferences have coevolved in this species. Specifically, both male and female B. daunchina respond strongly to the heterospecific calls of B. hainanensis, suggesting that preexisting biases exist in both females and males. Both male and female individuals showed a slight response to the calls of B. adenopleura while no response was evoked by the calls ofB. lini. The manifestation of similar response profiles in male and female B. daunchina to the calls of the four species support the idea that male and female signal receiver preferences evolved in parallel and that the origin of these receiver biases reflects adaptations dependent on the same neural and cognitive systems in both sexes.

关键词： sexual selection acoustic communication male-male competition phonotaxis tests coevolution

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Male Music Frogs Compete Vocally on the Basis of Temporal Sequence Rather Than Spatial Cues of Rival Calls

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Asian Herpetological Research 2015年第4期6卷 305-316页

作者： Fan JIANG guangzhan fang Fei XUE Jianguo CUI Steven E.BRAUTH Yezhong TANG Chengdu Institute of Biology Chinese Academy of Sciences Department of Psychology University of Maryland

Male-male vocal competition in anuran species may be influenced by cues related to the temporal sequence of male calls as well by internal temporal, spectral and spatial ones. Nevertheless, the conditions under which each type of cue is important remain unclear. Since the salience of different cues could be reflected by dynamic properties of male-male competition under certain experimental manipulation, we investigated the effects of repeating playbacks of conspecific calls on male call production in the Emei music frog（Babina daunchina）. In Babina, most males produce calls from nest burrows which modify the spectral features of the cues. Females prefer calls produced from inside burrows which are defined as highly sexually attractive（HSA） while those produced outside burrows as low sexual attractiveness（LSA）. In this study HSA and LSA calls were broadcasted either antiphonally or stereophonically through spatially separated speakers in which the temporal sequence and/or spatial position of the playbacks was either predictable or random. Results showed that most males consistently avoided producing advertisement calls overlapping the playback stimuli and generally produced calls competitively in advance of the playbacks. Furthermore males preferentially competed with the HSA calls when the sequence was predictable but competed equally with HSA and LSA calls if the sequence was random regardless of the availability of spatial cues, implying that males relied more on available sequence cues than spatial ones to remain competitive.

关键词： male-male competition advertisement call sequence cue spatial cue call timing.

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Changes in Electroencephalogram Approximate Entropy Reflect Auditory Processing and Functional Complexity in Frogs

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Asian Herpetological Research 2016年第3期7卷 180-190页

作者： Yansu LIU Yanzhu FAN Fei XUE Xizi YUE Steven E.BRAUTH Yezhong TANG guangzhan fang Sichuan Nursing Vocational College. No. 173 Longdu Nan Road Longquan district Chengdu Sichuan China College of Life Science Northwest Normal University. No. 967 Anning East Road Lanzhou Gansu China Chengdu Institute of Biology Chinese Academy of Sciences. No. 9 Section 4 Renmin Nan Road Chengdu Sichuan China Department of Psychology University of Maryland College Park MD 20742 USA

Brain systems engage in what are generally considered to be among the most complex forms of information processing. In the present study, we investigated the functional complexity of anuran auditory processing using the approximate entropy（Ap En） protocol for electroencephalogram（EEG） recordings from the forebrain and midbrain while male and female music frogs（Babina daunchina） listened to acoustic stimuli whose biological significance varied. The stimuli used were synthesized white noise（reflecting a novel signal）, conspecific male advertisement calls with either high or low sexual attractiveness（reflecting sexual selection） and silence（reflecting a baseline）. The results showed that 1） Ap En evoked by conspecific calls exceeded Ap En evoked by synthesized white noise in the left mesencephalon indicating this structure plays a critical role in processing acoustic signals with biological significance; 2） Ap En in the mesencephalon was significantly higher than for the telencephalon, consistent with the fact that the anuran midbrain contains a large well-organized auditory nucleus（torus semicircularis） while the forebrain does not; 3） for females Ap En in the mesencephalon was significantly different than that of males, suggesting that males and females process biological stimuli related to mate choice differently.

关键词： Complexity reflecting auditory evoked sexual silence calls advertisement engage approximate

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Circadian Rhythm of Calling Behavior in the Emei Music Frog(Babina daunchina) is Associated with Habitat Temperature and Relative Humidity

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Asian Herpetological Research 2011年第3期2卷 149-154页

作者： Jianguo CUI Xiaoyan SONG guangzhan fang Fei XU Steven E. BRAUTH Yezhong TANG Chengdu Institute of Biology Chinese Academy of Sciences Sichuan Institute of Animal Sciences Department of Psychology University of MarylandCollege Park

Generally, the function of vocalizations made by male anurans are to attract females or defend resources. Typically, males vocalize in choruses during one or more periods in a twenty-four-hour cycle, which varies, however, among species. Nevertheless, the causal factors influencing circadian variations of calling patterns in anuran species are not clear. In this study, male chorus vocalizations were monitored in the Emei music frog(Babina daunchina) for 17 consecutive days during the breeding season, while its habitat air temperature and relative humidity in the course of experiments were measured as well. The results revealed that the circadian calling patterns were characterized by two periods of peak vocalization, which were observed from 0500 h to 0700 h and from 1300 h to 2000 h, while the lowest activity period was found from 2100 h to 2200 h. Both calls/h and notes/h were positively correlated with air temperature and negatively with relative humidity. Overall, our data indicate that the Emei music frogs(B. daunchina) could regulate their vocal activities based on the changes of physical micro-environment(e. g., temperature or humidity) to maximize reproductive success.

关键词： rest-activity cycle advertisement call temperature humidity Emei music frog(Babina daunchina

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圈养大熊猫刻板行为的节律

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应用与环境生物学报 2022年第6期28卷 1629-1634页

作者：刘赫张轶卓张媛媛唐业忠方光战北京动物园圈养野生动物技术北京市重点实验室北京100044 中国科学院成都生物研究所成都610041

刻板行为通常是指在笼养环境下出现的不变和重复的无功能行为,相对野生环境下的行为而言是异常行为,常被作为评价笼养环境优劣的重要行为指标,因此具有重要的科学研究价值,然而目前诸多研究集中于环境对刻板行为的影响上,关于刻板行为... 详细信息

刻板行为通常是指在笼养环境下出现的不变和重复的无功能行为,相对野生环境下的行为而言是异常行为,常被作为评价笼养环境优劣的重要行为指标,因此具有重要的科学研究价值,然而目前诸多研究集中于环境对刻板行为的影响上,关于刻板行为的节律仍不清楚.以北京动物园的8只大熊猫(Ailuropoda melanoleuca)为研究对象,在2018年1月至2019年12月,通过全天24 h的视频录像,采用焦点动物取样法和全事件记录法对圈养大熊猫的所有行为活动进行记录和分析,用以探明圈养环境下大熊猫刻板行为的节律.结果表明,幼年大熊猫没有刻板行为发生,而成年大熊猫均存在不同程度的刻板行为.成年大熊猫刻板行为的持续时间占全天的0.72%,全年刻板行为的高峰时段在上午7点至9点和夜间1点至3点,且夜间刻板行为的平均持续时间和平均次数均高于白天,但差异不显著.春季刻板行为的平均频次最高,冬季刻板行为平均持续时间最长,而且冬季白天刻板行为的平均持续时间最长,夏秋季白天刻板行为的平均持续时间最短,但夏秋季夜晚的平均刻板行为持续时间最长,且季节间不存在显著差异.综上,尽管差异不显著,但当前结果亦表明成年大熊猫的刻板行为可能存在昼夜节律和季节差异;由于成年和幼年大熊猫的笼养环境相似,提示刻板行为的产生可能与年龄有关,可能是后天环境作用的结果,或是适应环境的一种方式.(图4表3参43)

关键词：刻板行为昼夜节律季节差异大熊猫

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