{"title":"Publications of Luis Puelles in Developmental and Comparative Neurobiology","authors":"L. Puelles","doi":"10.1159/000524913","DOIUrl":"https://doi.org/10.1159/000524913","url":null,"abstract":"","PeriodicalId":56328,"journal":{"name":"Brain Behavior and Evolution","volume":"96 1","pages":"355 - 363"},"PeriodicalIF":1.7,"publicationDate":"2022-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46595638","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}
Birds and mammals have independently evolved complex behavioral and cognitive capabilities yet have markedly different brain structures. An open question is to what extent, despite these differences in anatomy, birds and mammals have evolved similar neural solutions to complex motor control and at what level of organization these similarities might lie. Courtship song in songbirds, a learned motor skill that is similar to the fine motor skills of many mammals including human speech, provides a powerful system in which to study the links connecting the development and evolution of cells, circuits, and behavior. Until recently, obtaining cellular-resolution views of the specialized neural circuitry that subserves birdsong was impossible due to a lack of molecular tools for songbirds. However, the ongoing revolution in cellular profiling and genomics offers unprecedented opportunities for molecular analysis in organisms that lack a traditional genetic infrastructure but have tractable, well-defined behaviors. Here, I describe recent efforts to understand the evolutionary relationships between birdsong control circuitry and mammalian neocortical circuitry using new approaches to measure gene expression in single cells. These results, combined with foundational work relating avian and mammalian brains at a range of biological levels, present an emerging view that amniote pallium evolution is a story of diverse neural circuit architectures employing conserved neuronal elements within a conserved topological framework. This view suggests that one locus of pallial neural circuit evolution lies at the intersection between the gene regulatory programs that regulate regional patterning and those that specify functional identity. Modifications to this intersection may underlie the evolution of pallial motor control in birds in general and to the evolutionary and developmental relationships of these circuits to the avian pallial amygdala.
{"title":"Organizational Conservation and Flexibility in the Evolution of Birdsong and Avian Motor Control","authors":"Bradley M. Colquitt","doi":"10.1159/000525019","DOIUrl":"https://doi.org/10.1159/000525019","url":null,"abstract":"Birds and mammals have independently evolved complex behavioral and cognitive capabilities yet have markedly different brain structures. An open question is to what extent, despite these differences in anatomy, birds and mammals have evolved similar neural solutions to complex motor control and at what level of organization these similarities might lie. Courtship song in songbirds, a learned motor skill that is similar to the fine motor skills of many mammals including human speech, provides a powerful system in which to study the links connecting the development and evolution of cells, circuits, and behavior. Until recently, obtaining cellular-resolution views of the specialized neural circuitry that subserves birdsong was impossible due to a lack of molecular tools for songbirds. However, the ongoing revolution in cellular profiling and genomics offers unprecedented opportunities for molecular analysis in organisms that lack a traditional genetic infrastructure but have tractable, well-defined behaviors. Here, I describe recent efforts to understand the evolutionary relationships between birdsong control circuitry and mammalian neocortical circuitry using new approaches to measure gene expression in single cells. These results, combined with foundational work relating avian and mammalian brains at a range of biological levels, present an emerging view that amniote pallium evolution is a story of diverse neural circuit architectures employing conserved neuronal elements within a conserved topological framework. This view suggests that one locus of pallial neural circuit evolution lies at the intersection between the gene regulatory programs that regulate regional patterning and those that specify functional identity. Modifications to this intersection may underlie the evolution of pallial motor control in birds in general and to the evolutionary and developmental relationships of these circuits to the avian pallial amygdala.","PeriodicalId":56328,"journal":{"name":"Brain Behavior and Evolution","volume":"97 1","pages":"255 - 264"},"PeriodicalIF":1.7,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43252820","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}
Several areas of the vertebrate brain are involved in facilitating and inhibiting the production of sexual behaviors and displays. In the laboratory, a higher rate of sexual displays is correlated with a larger ventral posterior amygdala (VPA), an area of the brain involved in the expression of sexual display behaviors, as well as larger VPA neuronal somas. However, it remains unclear if individuals in the field reflect similar patterns, as there are likely many more selective pressures in the field that may also modulate the VPA architecture. In this study, we examined variation in VPA volume and neuron soma volume in wild-caught common side-blotched lizards (Uta stansburiana) from two different populations. In a population from Nevada, males experience high predation pressure and have decreased sexual display rates during the breeding season, whereas a population in Oregon has lower levels of predation and higher rates of male sexual displays. We found that wild-caught males from the population with lower display rates also exhibited decreased VPA volume and VPA neuron cell soma volume, which may suggest that decreased display rate, possibly due to increased predation rate, covaries with VPA attributes.
{"title":"Higher Rate of Male Sexual Displays Correlates with Larger Ventral Posterior Amygdala Volume and Neuron Soma Volume in Wild-Caught Common Side-Blotched Lizards, Uta stansburiana","authors":"Lara D. LaDage, Tracy Yu, P. Zani","doi":"10.1159/000524915","DOIUrl":"https://doi.org/10.1159/000524915","url":null,"abstract":"Several areas of the vertebrate brain are involved in facilitating and inhibiting the production of sexual behaviors and displays. In the laboratory, a higher rate of sexual displays is correlated with a larger ventral posterior amygdala (VPA), an area of the brain involved in the expression of sexual display behaviors, as well as larger VPA neuronal somas. However, it remains unclear if individuals in the field reflect similar patterns, as there are likely many more selective pressures in the field that may also modulate the VPA architecture. In this study, we examined variation in VPA volume and neuron soma volume in wild-caught common side-blotched lizards (Uta stansburiana) from two different populations. In a population from Nevada, males experience high predation pressure and have decreased sexual display rates during the breeding season, whereas a population in Oregon has lower levels of predation and higher rates of male sexual displays. We found that wild-caught males from the population with lower display rates also exhibited decreased VPA volume and VPA neuron cell soma volume, which may suggest that decreased display rate, possibly due to increased predation rate, covaries with VPA attributes.","PeriodicalId":56328,"journal":{"name":"Brain Behavior and Evolution","volume":"97 1","pages":"298 - 308"},"PeriodicalIF":1.7,"publicationDate":"2022-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45335811","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}
Karger Publishers and the editors of Brain, Behavior and Evolution would like to thank the reviewers for their ongoing support in reviewing manuscripts for our Journal in 2022. This year we have chosen not to disclose the names of our reviewers to preserve the principle of anonymity inherent to the single-blind peer-review we follow. Even so, this should not be in our way to sincerely thank all contributing reviewers who have volunteered their time, effort, and expertise in benefit of the quality of the manuscripts we received and published in 2022. Individual reviewers can still claim their personal “Certificate of Review” via the Journal’s manuscript submission system.
{"title":"Acknlowledgement to Reviewers","authors":"","doi":"10.1159/000524445","DOIUrl":"https://doi.org/10.1159/000524445","url":null,"abstract":"Karger Publishers and the editors of Brain, Behavior and Evolution would like to thank the reviewers for their ongoing support in reviewing manuscripts for our Journal in 2022. This year we have chosen not to disclose the names of our reviewers to preserve the principle of anonymity inherent to the single-blind peer-review we follow. Even so, this should not be in our way to sincerely thank all contributing reviewers who have volunteered their time, effort, and expertise in benefit of the quality of the manuscripts we received and published in 2022. Individual reviewers can still claim their personal “Certificate of Review” via the Journal’s manuscript submission system.","PeriodicalId":56328,"journal":{"name":"Brain Behavior and Evolution","volume":"97 1","pages":"369 - 369"},"PeriodicalIF":1.7,"publicationDate":"2022-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44792096","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}
The scientific context of the special issue dedicated to Luis Puelles and Agustin Gonzalez is given in this short epilogue.
Luis Puelles和Agustin Gonzalez特刊的科学背景在这篇简短的结语中给出。
{"title":"Epilogue: A Tribute to Luis Puelles and Agustín González","authors":"P. Vernier","doi":"10.1159/000524493","DOIUrl":"https://doi.org/10.1159/000524493","url":null,"abstract":"The scientific context of the special issue dedicated to Luis Puelles and Agustin Gonzalez is given in this short epilogue.","PeriodicalId":56328,"journal":{"name":"Brain Behavior and Evolution","volume":"96 1","pages":"353 - 354"},"PeriodicalIF":1.7,"publicationDate":"2022-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41898915","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}
The question of how complex traits originate and diversify has marveled naturalists for millennia. From the notion of development as a series of transformations beyond 'pre-formed' growth by Aristotle, to von Baer's recognition of phylogenetic differentiation that set the foundations of modern evo-devo thinking, a central theme has been the nature of biological change (and conservation) across temporal scales. Since the last universal common ancestors, recurrent series of ontogenies have negotiated conservation and change, thus generating the phylogenetic tree against the regularities of planetary rhythms (e.g., tides, days, seasons) as well as organismic dynamics (e.g., embryogenesis, metabolism, behavior). Accordingly, differences in the relative timing of developmental processes (i.e., heterochronies) have long been considered as a major source of evolutionary diversity. To further reflect upon the mechanisms by which changes in developmental timing have shaped brain evolution, the 32nd Annual Karger Workshop in Evolutionary Neuroscience included a diverse panel of speakers to address the topic of Heterochrony in Comparative Neurodevelopment. This Special Edition of Brain Behavior & Evolution is a collection of articles contributed by these speakers around this central theme. The contributed papers are quite diverse in their focus, their methods, and the insights they provide. However, a common thread in these reflections is the understanding of organisms as dynamic systems, embedded within an ecological context, which arise via an epigenetic process of developmental transformations, and consist of coherent yet dissociable modules. Evolution takes place by a differential tinkering of these developmental processes, generating innovations within the constraints of an organism's viability. Our understanding of how development affects evolution has moved beyond a simplistic dichotomy of genotype-phenotype to incorporate the many contexts in which variation can result in the conservation of new contingencies. In our view, this collection of articles builds upon these notions to highlight some of the mechanisms by which heterochrony, understood as a consequence of the evolution of developmental processes rather than a developmental process in and of itself, has contributed to the generation of diversity in complex brain features.
{"title":"Evolution of Developmental Timing as a Driving Force of Brain Diversity","authors":"Rodrigo Suárez, A. Halley","doi":"10.1159/000524334","DOIUrl":"https://doi.org/10.1159/000524334","url":null,"abstract":"The question of how complex traits originate and diversify has marveled naturalists for millennia. From the notion of development as a series of transformations beyond 'pre-formed' growth by Aristotle, to von Baer's recognition of phylogenetic differentiation that set the foundations of modern evo-devo thinking, a central theme has been the nature of biological change (and conservation) across temporal scales. Since the last universal common ancestors, recurrent series of ontogenies have negotiated conservation and change, thus generating the phylogenetic tree against the regularities of planetary rhythms (e.g., tides, days, seasons) as well as organismic dynamics (e.g., embryogenesis, metabolism, behavior). Accordingly, differences in the relative timing of developmental processes (i.e., heterochronies) have long been considered as a major source of evolutionary diversity. To further reflect upon the mechanisms by which changes in developmental timing have shaped brain evolution, the 32nd Annual Karger Workshop in Evolutionary Neuroscience included a diverse panel of speakers to address the topic of Heterochrony in Comparative Neurodevelopment. This Special Edition of Brain Behavior & Evolution is a collection of articles contributed by these speakers around this central theme. The contributed papers are quite diverse in their focus, their methods, and the insights they provide. However, a common thread in these reflections is the understanding of organisms as dynamic systems, embedded within an ecological context, which arise via an epigenetic process of developmental transformations, and consist of coherent yet dissociable modules. Evolution takes place by a differential tinkering of these developmental processes, generating innovations within the constraints of an organism's viability. Our understanding of how development affects evolution has moved beyond a simplistic dichotomy of genotype-phenotype to incorporate the many contexts in which variation can result in the conservation of new contingencies. In our view, this collection of articles builds upon these notions to highlight some of the mechanisms by which heterochrony, understood as a consequence of the evolution of developmental processes rather than a developmental process in and of itself, has contributed to the generation of diversity in complex brain features.","PeriodicalId":56328,"journal":{"name":"Brain Behavior and Evolution","volume":"97 1","pages":"3 - 7"},"PeriodicalIF":1.7,"publicationDate":"2022-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47191510","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}
Carnivorans possess relatively large brains compared to most other mammalian clades. Factors like environmental complexity (Cognitive Buffer Hypothesis) and diet quality (Expensive-Tissue Hypothesis) have been proposed as mechanisms for encephalization in other large-brained clades. We examine whether the Cognitive Buffer and Expensive-Tissue Hypotheses account for brain size variation within Carnivora. Under these hypotheses, we predict a positive correlation between brain size and environmental complexity or protein consumption. Relative endocranial volume (phylogenetic generalized least-squares residual from species’ mean body mass) and 9 environmental and dietary variables were collected from the literature for 148 species of terrestrial and marine carnivorans. We found that the correlation between relative brain volume and environment and diet differed among clades, a trend consistent with other larger brained vertebrates (i.e., Primates, Aves). Mustelidae and Procyonidae demonstrate larger brains in species with higher-quality diets, consistent with the Expensive-Tissue Hypothesis, while in Herpestidae, correlations between relative brain size and environment are consistent with the Cognitive Buffer Hypothesis. Our results indicate that carnivorans may have evolved relatively larger brains under similar selective pressures as primates despite the considerable differences in life history and behavior between these two clades.
{"title":"Relative Brain Volume of Carnivorans Has Evolved in Correlation with Environmental and Dietary Variables Differentially among Clades","authors":"Leigha M. Lynch, K. Allen","doi":"10.1159/000523787","DOIUrl":"https://doi.org/10.1159/000523787","url":null,"abstract":"Carnivorans possess relatively large brains compared to most other mammalian clades. Factors like environmental complexity (Cognitive Buffer Hypothesis) and diet quality (Expensive-Tissue Hypothesis) have been proposed as mechanisms for encephalization in other large-brained clades. We examine whether the Cognitive Buffer and Expensive-Tissue Hypotheses account for brain size variation within Carnivora. Under these hypotheses, we predict a positive correlation between brain size and environmental complexity or protein consumption. Relative endocranial volume (phylogenetic generalized least-squares residual from species’ mean body mass) and 9 environmental and dietary variables were collected from the literature for 148 species of terrestrial and marine carnivorans. We found that the correlation between relative brain volume and environment and diet differed among clades, a trend consistent with other larger brained vertebrates (i.e., Primates, Aves). Mustelidae and Procyonidae demonstrate larger brains in species with higher-quality diets, consistent with the Expensive-Tissue Hypothesis, while in Herpestidae, correlations between relative brain size and environment are consistent with the Cognitive Buffer Hypothesis. Our results indicate that carnivorans may have evolved relatively larger brains under similar selective pressures as primates despite the considerable differences in life history and behavior between these two clades.","PeriodicalId":56328,"journal":{"name":"Brain Behavior and Evolution","volume":"97 1","pages":"284 - 297"},"PeriodicalIF":1.7,"publicationDate":"2022-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41658904","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}
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