Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology最新文献_第2页

The cold tolerance of the terrestrial slug, Ambigolimax valentianus. 陆生蛞蝓的耐寒性。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-01-11 DOI: 10.1007/s00359-025-01730-z

Lauren T Gill, Hiroko Udaka, Katie E Marshall

{"title":"The cold tolerance of the terrestrial slug, Ambigolimax valentianus.","authors":"Lauren T Gill, Hiroko Udaka, Katie E Marshall","doi":"10.1007/s00359-025-01730-z","DOIUrl":"https://doi.org/10.1007/s00359-025-01730-z","url":null,"abstract":"Terrestrial molluscs living in temperate and polar environments must contend with cold winter temperatures. However, the physiological mechanisms underlying the survival of terrestrial molluscs in cold environments and the strategies employed by them are poorly understood. Here we investigated the cold tolerance of Ambigolimax valentianus, an invasive, terrestrial slug that has established populations in Japan, Canada, and Europe. To do this, we acclimated A. valentianus to different environmental conditions (differing day lengths and temperatures), then exposed them to sub-zero temperatures and measured overall survival. Then, we measured low molecular weight metabolites using 1H NMR to see if they play a role in their cold tolerance as they do in other invertebrate species. We found that A. valentianus is not strongly freeze tolerant but does become more cold-hardy after acclimation to shorter day lengths. We also found that no metabolites were strongly upregulated in response to winter conditions despite the change in cold hardiness, and instead saw evidence of metabolic suppression leading up to winter such as formate and L-glutamine being suppressed in winter conditions.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142967355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Male seminal fluid allocation according to socio-sexual context in the South American fruit fly. 南美果蝇社会性别背景下的雄性精液分配。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-01-07 DOI: 10.1007/s00359-024-01728-z

Antonella Giudice, Gisela Castillo, Viviana Díaz, Andrea Moyano, Alfonsina Palladini, Diana Pérez-Staples, Carolina de Lourdes Olea, Solana Abraham

{"title":"Male seminal fluid allocation according to socio-sexual context in the South American fruit fly.","authors":"Antonella Giudice, Gisela Castillo, Viviana Díaz, Andrea Moyano, Alfonsina Palladini, Diana Pérez-Staples, Carolina de Lourdes Olea, Solana Abraham","doi":"10.1007/s00359-024-01728-z","DOIUrl":"https://doi.org/10.1007/s00359-024-01728-z","url":null,"abstract":"During copulation male insects transfer sperm and seminal fluids, including accessory gland proteins (Acps) to females, produced in the accessory glands (AGs). These Acps influence female behavior and physiology, inhibiting sexual receptivity, promoting ovulation and/or oviposition. The theory of ejaculate allocation postulates that production is costly; therefore, males strategically allocate ejaculates based on perception of sperm competition and quality and availability of females. The objective of this study was to determine in the South American fruit fly Anastrepha fraterculus whether there is differential allocation of Acps by males under different social contexts: (i) presence or absence of males in the mating arena (male social context), (ii) presence/absence of females in the mating arena (female social context), and (iii) female condition (sugar-fed/protein-fed). This was inferred through female behavior (fecundity, fertility and remating) and the dynamics of the reduction in male AGs size and protein content after copulation. No effect was observed from the various social contexts perceived by males on female's fecundity, fertility, or remating. Mated males had less protein in their AGs compared to unmated males. Male social context affected AG size after copulation: there was a marked decrease in AG size in males which mated in the presence of rival males; moreover, males mated under competition had lower protein content in their AGs than males mating without competition, suggesting that males can adjust seminal fluid quantity depending on social-mating context, although this difference did not impact the physiology and behavior of females after copulation. Our results also indicate that AG size and protein content are correlated.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142959063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Note similarities affect syntactic stability in zebra finches. 注释相似性会影响斑马雀的句法稳定性。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-01-01 Epub Date: 2024-08-12 DOI: 10.1007/s00359-024-01713-6

Jorge M Méndez, Brenton G Cooper, Franz Goller

{"title":"Note similarities affect syntactic stability in zebra finches.","authors":"Jorge M Méndez, Brenton G Cooper, Franz Goller","doi":"10.1007/s00359-024-01713-6","DOIUrl":"10.1007/s00359-024-01713-6","url":null,"abstract":"The acquisition of an acoustic template is a fundamental component of vocal imitation learning, which is used to refine innate vocalizations and develop a species-specific song. In the absence of a model, birds fail to develop species typical songs. In zebra finches (Taeniopygia guttata), tutored birds produce songs with a stereotyped sequence of distinct acoustic elements, or notes, which form the song motif. Songs of untutored individuals feature atypical acoustic and temporal structure. Here we studied songs and associated respiratory patterns of tutored and untutored male zebra finches to investigate whether similar acoustic notes influence the sequence of song elements. A subgroup of animals developed songs with multiple acoustically similar notes that are produced with alike respiratory motor gestures. These birds also showed increased syntactic variability in their adult motif. Sequence variability tended to occur near song elements which showed high similarity in acoustic structure and underlying respiratory motor gestures. The duration and depth of the inspirations preceding the syllables where syntactic variation occurred did not allow prediction of the following sequence of notes, suggesting that the varying duration and air requirement of the following expiratory pulse is not predictively encoded in the motor program. This study provides a novel method for calculation of motor/acoustic similarity, and the results of this study suggest that the note is a fundamental acoustic unit in the organization of the motif and could play a role in the neural code for song syntax.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":"35-52"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141918130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Expression of proteins supporting visual function in heterobranch gastropods. 支持视觉功能的蛋白质在异鳃腹足类动物中的表达。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-01-01 Epub Date: 2024-08-09 DOI: 10.1007/s00359-024-01712-7

Ryota Matsuo, Haeri Kwon, Kiyotaka Takishita, Takako Nishi, Yuko Matsuo

{"title":"Expression of proteins supporting visual function in heterobranch gastropods.","authors":"Ryota Matsuo, Haeri Kwon, Kiyotaka Takishita, Takako Nishi, Yuko Matsuo","doi":"10.1007/s00359-024-01712-7","DOIUrl":"10.1007/s00359-024-01712-7","url":null,"abstract":"To sense light, animals often utilize mechanisms that rely on visual pigments composed of opsin and retinal. The photon-induced isomerization of 11-cis-retinal to the all-trans configuration triggers phototransduction cascades, resulting in a change in the membrane potential of the photoreceptor. In mollusks, the most abundant opsin in the eye is Gq-coupled rhodopsin (Gq-rhodopsin). The Gq-rhodopsin-based visual pigment is bistable, with the regeneration of 11-cis-retinal occurring in a light-dependent manner without leaving the opsin moiety. 11-cis-retinal is also regenerated by the action of retinochrome in the cell bodies. Retinal binding protein (RALBP) mediates retinal transport between Gq-rhodopsin and retinochrome in the cytoplasm. However, recent studies have identified additional bistable opsins in mollusks, including Opn5 and xenopsin. It is unknown whether these bistable opsins require RALBP and retinochrome for the continuous regeneration of 11-cis-retinal. In the present study, we examined the expression of RALBP and retinochrome in the photoreceptors expressing Opn5 or Xenopsin in the heterobranch gastropods Limax and Peronia. Our findings revealed that retinochrome, but not RALBP, was present in some of the Opn5A-positive brain photosensory neurons of Limax. The ciliary cells in the dorsal eye of Peronia, which express Xenopsin2, lacked both retinochrome and RALBP. Therefore, bistable opsins do not necessarily depend on the RALBP-retinochrome system in a cell. We also examined the expression of other proteins that support visual function, such as β-arrestin, Gq, and Go, in all types of photoreceptors in these animals, and uncovered differences in the molecular composition among the photoreceptors.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":"19-34"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141908397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of extracellular potassium concentration on the oscillation frequency of the pacemaker nucleus in the weakly electric fish Apteronotus leptorhynchus. 细胞外钾浓度对弱电鱼起搏核振荡频率的影响

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-01-01 Epub Date: 2024-10-23 DOI: 10.1007/s00359-024-01719-0

Masashi Kawasaki, Günther K H Zupanc

{"title":"The effect of extracellular potassium concentration on the oscillation frequency of the pacemaker nucleus in the weakly electric fish Apteronotus leptorhynchus.","authors":"Masashi Kawasaki, Günther K H Zupanc","doi":"10.1007/s00359-024-01719-0","DOIUrl":"10.1007/s00359-024-01719-0","url":null,"abstract":"The weakly electric brown ghost knifefish (Apteronotus leptorhynchus) exhibits a pronounced sexual dimorphism in its electric behavior-males discharge at higher frequencies than females, with little overlap between the sexes. The frequency of these electric organ discharges is controlled by the frequency of the synchronized oscillations of the medullary pacemaker nucleus. Previous studies have suggested that sex-specific differences in the morphology and gene expression pattern of the astrocytic syncytium that envelopes the pacemaking neural network cause differences in its capacity to buffer the extracellular concentration of K+. This change in the K+ buffering capacity affects the K+ equilibrium potential of the neurons constituting the neural network, which in turn modulates the frequency of the pacemaker nucleus. In the present study, we have tested a critical element of this hypothesis by examining whether, and how, changes in the extracellular K+ concentration influence the frequency of the pacemaker nucleus oscillations. By using an in vitro preparation of the pacemaker nucleus, the results of this investigation demonstrate that exposure of this nucleus to acutely increased/decreased concentrations of K+ in the perfusate (while maintaining osmolarity) leads to concentration-dependent increases/decreases in the frequency of the synchronized oscillations generated by the pacemaker nucleus.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":"113-121"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11846712/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142513221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ips typographus vision system: a comprehensive study. Ips typographus 视觉系统：一项综合研究。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-01-01 Epub Date: 2024-09-27 DOI: 10.1007/s00359-024-01717-2

Giuseppe Morgante, Gregor Belušič, Marko Ilić, Aleš Škorjanc, Enrico Negrisolo, Andrea Battisti

{"title":"Ips typographus vision system: a comprehensive study.","authors":"Giuseppe Morgante, Gregor Belušič, Marko Ilić, Aleš Škorjanc, Enrico Negrisolo, Andrea Battisti","doi":"10.1007/s00359-024-01717-2","DOIUrl":"10.1007/s00359-024-01717-2","url":null,"abstract":"Aggressive bark beetle species such as the Eurasian spruce bark beetle Ips typographus play a fundamental role in forest ecosystems but can also lead to extensive forest mortality and massive economic damage during outbreaks. Currently I. typographus' eyes, visual perception of the world and recognition of specific targets like host plants are understudied topics. Studying its visual sense can open the way to novel efficient monitoring and management methods, particularly important in avoiding the switch from an endemic to an epidemic condition. In addition, the integration of visual cues in trapping systems may offer new opportunities for surveillance. Vision in I. typographus was investigated by means of morphological analysis, electroretinography (ERG), molecular analysis of opsin genes and behavioural tests. ERG has revealed that the compound eyes contain two classes of photoreceptors, maximally sensitive to UV and green at 370 and 530 nm, respectively. The result was further supported by the identification of two relevant opsin genes. Finally, the innate wavelength sensitivity was tested in a Y-maze. Ips typographus consistently preferred UV over non-UV (VIS) light, irrespective of their intensity ratios, but preferred high over low intensity VIS light, consistent with a UV-VIS dichromatic visual system. Overall, the results may open the way to better understand the navigation pattern in tree canopies and the host selection processes of this ecologically and economically important beetle species.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":"101-112"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11846742/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142332660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The distribution and chemosensory responses of pharyngeal taste buds in the sea lamprey Petromyzon marinus. 海鳗咽味蕾的分布和化学感应反应。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-01-01 Epub Date: 2024-07-30 DOI: 10.1007/s00359-024-01708-3

Hasan Polat, Gianfranco Grande, Zeenat Aurangzeb, Huiming Zhang, Gheylen Daghfous, Réjean Dubuc, Barbara Zielinski

{"title":"The distribution and chemosensory responses of pharyngeal taste buds in the sea lamprey Petromyzon marinus.","authors":"Hasan Polat, Gianfranco Grande, Zeenat Aurangzeb, Huiming Zhang, Gheylen Daghfous, Réjean Dubuc, Barbara Zielinski","doi":"10.1007/s00359-024-01708-3","DOIUrl":"10.1007/s00359-024-01708-3","url":null,"abstract":"Little is known about the chemosensory system of gustation in sea lampreys, basal jawless vertebrates that feed voraciously on live prey. The objective of this study was to investigate taste bud distribution and chemosensory responses along the length of the pharynx in the sea lamprey. Scanning electron microscopy and immunocytochemistry revealed taste buds and associated axons at all six lateral pharyngeal locations between the seven pairs of internal gill pores. The most rostral pharyngeal region contained more and larger taste buds than the most caudal region. Taste receptor cell responses were recorded to sweet, bitter, amino acids and the bile acid taurocholic acid, as well as to adenosine triphosphate. Similar chemosensory responses were observed at all six pharyngeal locations with taste buds. Overall, this study shows prominent taste buds and taste receptor cell activity in the seven pharyngeal regions of the sea lamprey.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":"1-17"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11846773/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141794087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Werner Nachtigall (1934-2024). 维尔纳-纳赫蒂加尔（1934-2024）。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-01-01 Epub Date: 2024-11-26 DOI: 10.1007/s00359-024-01726-1

Reinhard Blickhan

引用次数: 0

Tanycytes from a bird's eye view: gene expression profiling of the tanycytic region under different seasonal states in the Svalbard ptarmigan. 鸟瞰澹细胞：斯瓦尔巴特鸻澹细胞区域在不同季节状态下的基因表达谱分析。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-01-01 Epub Date: 2024-09-20 DOI: 10.1007/s00359-024-01716-3

Daniel Appenroth, Alexander C West, Shona H Wood, David G Hazlerigg

{"title":"Tanycytes from a bird's eye view: gene expression profiling of the tanycytic region under different seasonal states in the Svalbard ptarmigan.","authors":"Daniel Appenroth, Alexander C West, Shona H Wood, David G Hazlerigg","doi":"10.1007/s00359-024-01716-3","DOIUrl":"10.1007/s00359-024-01716-3","url":null,"abstract":"In mammals and birds, tanycytes are known to regulate thyroid hormone conversion, and this process is central to the control of seasonal reproduction. In mammals, this cell type is also implicated in retinoic acid signalling, neurogenesis, and nutritional gatekeeping, all of which have been linked to hypothalamic regulation of energy metabolism. Less is known about these potential wider roles of tanycytes in birds. To address this gap, we combined LASER capture microdissection and transcriptomics to profile the tanycytic region in male Svalbard ptarmigan, a High Arctic species with photoperiod-dependent seasonal rhythms in reproductive activation and body mass. Short photoperiod (SP) adapted birds were transferred to constant light (LL) to trigger breeding and body mass loss. After five months under LL, the development of photorefractoriness led to spontaneous re-emergence of the winter phenotype, marked by the termination of breeding and gain in body mass. The transfer from SP to LL initiated gene expression changes in both thyroid hormone and retinoic acid pathways, as described in seasonal mammals. Furthermore, transcriptomic signatures of cell differentiation and migration were observed. Comparison to data from Siberian hamsters demonstrated that a photoperiod-dependent re-organisation of the hypothalamic tanycytic region is likely a conserved feature. Conversely, the spontaneous development of photorefractoriness showed a surprisingly small number of genes that reverted in expression level, despite reversal of the reproductive and metabolic phenotype. Our data suggest general conservation of tanycyte biology between photoperiodic birds and mammals and raise questions about the mechanistic origins of the photorefractory state.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":"87-99"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11846777/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142301309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vocalization-induced middle ear muscle reflex and auditory fovea do not contribute to the unimpaired auditory sensitivity after intense noise exposure in the CF-FM bat, Hipposideros pratti. CF-FM蝙蝠（Hipposideros pratti）在暴露于强烈噪声后，发声引起的中耳肌肉反射和听觉眼窝不会导致听觉灵敏度受损。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-01-01 Epub Date: 2024-08-30 DOI: 10.1007/s00359-024-01714-5

Zhongdan Cui, Jianwen Zou, Yuting Zhou, Yuntu Cao, Haonan Song, Haoyue Xu, Jing Wu, Baoling Jin, Lijian Yang, Ya Jia, Qicai Chen, Ziying Fu

{"title":"Vocalization-induced middle ear muscle reflex and auditory fovea do not contribute to the unimpaired auditory sensitivity after intense noise exposure in the CF-FM bat, Hipposideros pratti.","authors":"Zhongdan Cui, Jianwen Zou, Yuting Zhou, Yuntu Cao, Haonan Song, Haoyue Xu, Jing Wu, Baoling Jin, Lijian Yang, Ya Jia, Qicai Chen, Ziying Fu","doi":"10.1007/s00359-024-01714-5","DOIUrl":"10.1007/s00359-024-01714-5","url":null,"abstract":"Behaviors and auditory physiological responses of some species of echolocating bats remain unaffected after exposure to intense noise, but information on the underlying mechanisms remains limited. Here, we studied whether the vocalization-induced middle ear muscle (MEM) contractions (MEM reflex) and auditory fovea contributed to the unimpaired auditory sensitivity of constant frequency-frequency modulation (CF-FM) bats after exposure to broad-band intense noise. The vocalizations of the CF-FM bat, Hipposideros pratti, were inhibited through anesthesia to eliminate the vocalization-induced MEM reflex. First, the anesthetized bats were exposed to intense broad-band noise, and the findings showed that the bats could still maintain their auditory sensitivities. However, auditory sensitivities were seriously impaired in CBA/Ca mice exposed to intense noise under anesthesia. This indicated that the unimpaired auditory sensitivity in H. pratti after exposure to intense noise under anesthesia was not due to anesthetization. The bats were further exposed to low-frequency band-limited noise, whose passband did not overlap with echolocation call frequencies. The results showed that the auditory responses to sound frequencies within the noise spectrum and one-half octave higher than the spectrum were also unimpaired. Taken together, the results indicate that both vocalization-induced MEM reflex and auditory fovea do not contribute to the unimpaired auditory sensitivity in H. pratti after exposure to intense noise. The possible mechanisms underlying the unimpaired auditory sensitivity after echolocating bats were exposed to intense noise are discussed.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":"53-67"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142114908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0