Hikaku Seiri Seikagaku(comparative Physiology and Biochemistry)最新文献_第5页

Adaptive strategies of animal behaviors based on spontaneous self-motions 基于自发自我运动的动物行为适应策略

Hikaku Seiri Seikagaku(comparative Physiology and Biochemistry) Pub Date : 2019-12-20 DOI: 10.3330/hikakuseiriseika.36.166

Takeshi Inoue

引用次数: 0

Spontaneous neural activity patterns allowing for diverse signaling mechanisms 自发的神经活动模式允许不同的信号机制

Hikaku Seiri Seikagaku(comparative Physiology and Biochemistry) Pub Date : 2019-08-06 DOI: 10.3330/HIKAKUSEIRISEIKA.36.100

Masashi Tabuchi, S. Namiki

{"title":"Spontaneous neural activity patterns allowing for diverse signaling mechanisms","authors":"Masashi Tabuchi, S. Namiki","doi":"10.3330/HIKAKUSEIRISEIKA.36.100","DOIUrl":"https://doi.org/10.3330/HIKAKUSEIRISEIKA.36.100","url":null,"abstract":"The brain is a system that can generate information internally and spontaneously to create its own functional structure as well as updating specific persistent internal states to optimize the information representation. Recent studies have suggested that“spontaneous activity patterns”play important roles during these processes. However, we still do not know how the patterned spontaneous activity of the brain network translates the information to regulate these processes. Moreover, molecular mechanisms underlying the patterned spontaneous activity are largely unknown. In this review, we introduce recent studies showing temporal structure of spontaneous activity patterns as well as their molecular regulatory mechanisms. By reviewing common and different mechanistic strategies between developmental and adult stages, we hypothesize that spontaneous activity patterns allow for diverse signaling mechanisms that can be useful in signifying specific persistent internal states of the brain. Also, we discuss the necessity of advanced methodological approaches in both experimental and computational techniques towards better understanding of the functional significance of temporal structure of spontaneous activity of the brains.","PeriodicalId":377956,"journal":{"name":"Hikaku Seiri Seikagaku(comparative Physiology and Biochemistry)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115335681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Echolocation strategy of bats during natural foraging 蝙蝠在自然觅食过程中的回声定位策略

Hikaku Seiri Seikagaku(comparative Physiology and Biochemistry) Pub Date : 2019-08-06 DOI: 10.3330/HIKAKUSEIRISEIKA.36.91

Emyo Fujioka, S. Hiryu

引用次数: 0

Abstracts from the 40th Annual Meeting of the Japanese Society for Comparative Physiology and Biochemistry 日本比较生理与生物化学学会第40届年会摘要

Hikaku Seiri Seikagaku(comparative Physiology and Biochemistry) Pub Date : 2019-04-15 DOI: 10.3330/hikakuseiriseika.36.3

引用次数: 0

Salinity measurement on euryhaline fish ranging in brackish water using micro conductivity loggers 用微电导率记录仪测量咸淡水中泛盐鱼类的盐度

Hikaku Seiri Seikagaku(comparative Physiology and Biochemistry) Pub Date : 2019-04-15 DOI: 10.3330/HIKAKUSEIRISEIKA.36.64

Shinichi Watanabe, K. Matsui, Ryou Kihara

{"title":"Salinity measurement on euryhaline fish ranging in brackish water using micro conductivity loggers","authors":"Shinichi Watanabe, K. Matsui, Ryou Kihara","doi":"10.3330/HIKAKUSEIRISEIKA.36.64","DOIUrl":"https://doi.org/10.3330/HIKAKUSEIRISEIKA.36.64","url":null,"abstract":"Salinity measurement Euryhaline fishes living in brackish water have physiological mechanisms of osmoregulation and select environmental water with suitable salinity. Compared with the physiological mechanisms, there is limited information for behavioral acclimation for the salinity selection. One major reason why is that it is technically difficult to measure salinity experienced by fish. In this paper, we present the methods to measure salinity on free-ranging fish using with two conductivity loggers (ge-olocator and ORI400-DTC). The geolocator can discriminate whether a tagged fish migrated to freshwater region because it is energized only in salt water. ORI400-DTC can accurately record conductivity in addition to water depth and tempera-ture at one second intervals. One of the loggers was attached to a black seabream ( Acanthopagrus schlegelii ), one of major euryhaline fishes in coasts of Japan. The result of geolocator showed that the fish did not migrate to freshwater region for the entire recording of 4-day period. The result of ORI 400-DTC showed that the fish spent 48% of time for 3-day recording period in hypotonic water lower than the body fluid. In addition, the data suggested that the thermocline and halo-cline formed at near a depth of 1 m may affect the migrate behavior of the black seabream. We believe that application of ORI400-DTC is effective to understand behavioral acclimation of various euryhaline fishes migrating to brackish water. It is also expected that the geolocator can be applied to investigate migratory behavior of diadromous fishes entering freshwater regions.","PeriodicalId":377956,"journal":{"name":"Hikaku Seiri Seikagaku(comparative Physiology and Biochemistry)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122967851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Representations of olfactory information and circuit organizations of the olfactory system in insect brains 昆虫大脑中嗅觉信息的表征和嗅觉系统的回路组织

Hikaku Seiri Seikagaku(comparative Physiology and Biochemistry) Pub Date : 2019-04-15 DOI: 10.3330/HIKAKUSEIRISEIKA.36.51

Y. Seki

引用次数: 0

The neuronal circuits for foraging behavior: How do we find good items? 觅食行为的神经回路:我们如何找到好东西?

Hikaku Seiri Seikagaku(comparative Physiology and Biochemistry) Pub Date : 2018-12-25 DOI: 10.3330/hikakuseiriseika.35.158

Hidetoshi Amita, O. Hikosaka

{"title":"The neuronal circuits for foraging behavior: How do we find good items?","authors":"Hidetoshi Amita, O. Hikosaka","doi":"10.3330/hikakuseiriseika.35.158","DOIUrl":"https://doi.org/10.3330/hikakuseiriseika.35.158","url":null,"abstract":"The Visual search is the first step for humans’ shopping and ani-mals’ foraging.“Object skill”is an important skill for quickly detecting a valuable object and deciding to accept or reject it. Rhesus monkeys ( Macaca Mulatta ) show remarkable perfor-mance for quickly finding a“good object”among many objects after repetitive object-reward association learning. Monkeys can discriminate many good objects from many bad objects (〜300 objects) for long time after learning (more than 100 days). What neuronal circuits enable animals to retain this high-capacity and long-term memory for finding valuable objects? Our previous and current studies indicate that the basal ganglia circuits are involved in detecting good or bad objects and making saccade to good objects based on this memory. Our optogenetic and neuropharmacological experiments demonstrated that two parallel circuits in the basal ganglia work in a coordinated manner for the object skill. Direct path-way in the basal ganglia, which is activated by presentation of good objects, facilitates saccade to good objects. Indirect path-way, which is activated by presentation of bad objects, sup-pressed saccade to bad objects. Not only accepting good objects but also rejecting bad objects is critical for finding and selecting a valuable object among many objects.","PeriodicalId":377956,"journal":{"name":"Hikaku Seiri Seikagaku(comparative Physiology and Biochemistry)","volume":"6 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123542297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanisms of insect photoperiodism: analysis in Protophormia terraenovae 昆虫光周期的机制:地原虫的分析

Hikaku Seiri Seikagaku(comparative Physiology and Biochemistry) Pub Date : 2018-12-25 DOI: 10.3330/HIKAKUSEIRISEIKA.35.140

Y. Hamanaka

{"title":"Mechanisms of insect photoperiodism: analysis in Protophormia terraenovae","authors":"Y. Hamanaka","doi":"10.3330/HIKAKUSEIRISEIKA.35.140","DOIUrl":"https://doi.org/10.3330/HIKAKUSEIRISEIKA.35.140","url":null,"abstract":"Most of the animals know seasons via environmental signals and adapt the development and reproduction to cyclic seasonal changes. Among those, length of a day (photoperiod) is the most reliable because of constancy through years, and thus many animals use photoperiod as a seasonal cue. The physiological response of organisms to photoperiod is called photoperiodism. The blow fly, Protophormia terraenovae has relatively large body size of 1cm length, and live in high-latitude regions such as Hokkaido or Aomori prefecture in Japan. Females of the blow fly have adult diapause induced under the short-day and low-temperature conditions in autumn. It is believed that the diapausing flies overwinter, for instances, among stacked fallen leaves beneath snow. Overwintered flies mate and lay eggs from spring to early summer. Now we have accumulated data about photoperiodic photoreceptors (photoreceptors in the compound eye), an endocrine organ (corpus allatum), and brain neurosecretory cells (PI neurons and PL neurons) regulating diapause induction and reproduction in P. terraenovae . Furthermore, it has been demonstrated that circadian clock neurons (small ventral lateral neuron, s-LN v ) driving circadian rhythm are involved in photoperiodism in this species, and that LN v including s-LN v synapses upon PL neurons crucial for diapause induction. Besides, both the expression pattern of a circadian clock gene ( period ) in the brain and subcellular localization of PERIOD in LN v alter in a photoperiod-dependent manner. Light information received in the compound eyes is probably translated into photoperiodic information, such as long days or short days in LN v . It seems that PL neurons receiving the short-day information from LN v change own electrophysiological properties to induce diapause. In this review, I introduce neural bases underlying photoperiodism of insects, focusing on the knowledge revealed in a non-model organism, P. terraenovae .","PeriodicalId":377956,"journal":{"name":"Hikaku Seiri Seikagaku(comparative Physiology and Biochemistry)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124275507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Long-term sperm storage mechanisms in ant queens 蚁后的长期精子储存机制

Hikaku Seiri Seikagaku(comparative Physiology and Biochemistry) Pub Date : 2018-12-25 DOI: 10.3330/HIKAKUSEIRISEIKA.35.150

A. Gotoh

引用次数: 0

Comprehensive voltage sensitive dye imaging in the leech nervous system using double-sided microscopy 双面显微镜下水蛭神经系统的电压敏感染料综合成像

Hikaku Seiri Seikagaku(comparative Physiology and Biochemistry) Pub Date : 2018-12-25 DOI: 10.3330/HIKAKUSEIRISEIKA.35.168

Yusuke Tomina, D. Wagenaar

引用次数: 0