Phylogeny Through Brain Traits

Switzer, Robert C.; Johnson, John Irwin; Kirsch, John A. W.

doi:10.1159/000121808

Cited by 18 publications

(3 citation statements)

References 9 publications

(12 reference statements)

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“…Another interesting aspect that affects the stratification of the AOB is the topography of the lateral olfactory tract (LOT), which can be located either through or below the accessory bulb. Thus, in broad groups of mammals including rodents, insectivores, and primates, the broad axonal bundles that make up the dorsal component of the LOT run through the innermost area of the mitral/plexiform layer or outer cell layer [345].…”

Section: Glomerular Layermentioning

confidence: 99%

Pheromone Sensing in Mammals: A Review of the Vomeronasal System

Torres,

Ortiz-Leal,

Sanchez-Quinteiro

2023

Anatomia

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This review addresses the role of chemical communication in mammals, giving special attention to the vomeronasal system in pheromone-mediated interactions. The vomeronasal system influences many social and sexual behaviors, from reproduction to species recognition. Interestingly, this system shows greater evolutionary variability compared to the olfactory system, emphasizing its complex nature and the need for thorough research. The discussion starts with foundational concepts of chemocommunication, progressing to a detailed exploration of olfactory systems. The neuroanatomy of the vomeronasal system stands in contrast with that of the olfactory system. Further, the sensory part of the vomeronasal system, known as the vomeronasal organ, and the integration center of this information, called the accessory olfactory bulb, receive comprehensive coverage. Secondary projections of both the olfactory and vomeronasal systems receive attention, especially in relation to the dual olfactory hypothesis. The review concludes by examining the organization of the vomeronasal system in four distinct mammalian groups: rodents, marsupials, herpestids, and bovids. The aim is to highlight the unique morphofunctional differences resulting from the adaptive changes each group experienced.

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Section: Glomerular Layermentioning

confidence: 99%

Pheromone Sensing in Mammals: A Review of the Vomeronasal System

Torres,

Ortiz-Leal,

Sanchez-Quinteiro

2023

Anatomia

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Section: Neuroanatomy Of the Accessory Olfactory Bulbmentioning

confidence: 99%

Pheromone Sensing in Mammals: A Review on the Vomeronasal System

Torres,

Ortiz-Leal,

Sanchez-Quinteiro

2023

Preprint

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This review delves into the significance of chemical communication in mammals, with an emphasis on the role of the vomeronasal system in sensing pheromone-mediated interactions. The vomeronasal system shapes a variety of social and sexual behaviors, including reproduction, hierarchy formation, maternal bonding, and species recognition. Intriguingly, this system presents a vast degree of evolutionary variability, more so than variations observed in the olfactory system. This adaptive diversity underscores the challenges in studying the vomeronasal system, emphasizing the need for detailed research into its neuroanatomy and functional morphology. This review traverses an array of topics central to our understanding of chemical communication in mammals. We begin with the foundational role and basic concepts of chemocommunication. This is followed by an in-depth exploration of the olfactory systems. Subsequently, the neuroanatomical underpinnings of the vomeronasal system are juxtaposed against those of the olfactory system. Our focus then shifts to an exhaustive study of the sensory element of the vomeronasal system, the vomeronasal organ, and the integrating center of this information, the accessory olfactory bulb. The discussion extends to secondary projections of both the olfactory and vomeronasal systems in the light of the dual olfactory hypothesis. The review culminates with a detailed look at four specific models of vomeronasal system organization belonging to four evolutionarily distinct mammalian families: rodents, marsupials, herpestids, and bovids. These have been meticulously analyzed by the authors, aiming to spotlight the significant morphofunctional differences stemming from the adaptive changes imprinted on the system.

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“…In practice, this entails consider ation of topographic position, cytoarchitectural structure, histochemistry, afferent and efferent connections. Another con cern is the degree to which commonality of structural features should be viewed as an indicator of ancestry [see Switzer et al, 1980].…”

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confidence: 99%

Relationship between Prefrontal and Limbic Cortex: A Comparative Anatomical Review; pp. 65–80

Reep¹

1984

Brain Behav Evol

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Certain cortical areas of the frontal lobe which are included in the limbic system on functional grounds and by virtue of their hypothalamic and amygdaloid connections must also be considered part of the prefrontal cortex if the latter is defined as the projection field of the mediodorsal thalamic nucleus (MD). This ambiguity has resulted in general confusion regarding the anatomical organization of these areas. The present review attempts to clarify these issues by briefly discussing the historical development of the concepts of limbic and prefrontal cortex, then reviewing comparative data on cytoarchitectural structure and afferent connections among several orders of mammals. It is shown that in all cases the entire cerebral cortex can be divided into concentric rings of allocortex, mesocortex and isocortex. The cortical projections of MD and the amygdala overlap primary in the mesocortical regions which constitute limbic cortex, and the MD projection field extends further to include the granular isocortex of the frontal lobe. This close correspondence between cytoarchitectonic structure and afferent connections in different groups of mammals suggests that these anatomical features are fundamental aspects of cortical organization and that they be used to re-orient terminology such as limbic cortex and prefrontal cortex, as well as guide our understanding of the functional roles played by these cortical areas.

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Phylogeny Through Brain Traits

Cited by 18 publications

References 9 publications

Pheromone Sensing in Mammals: A Review of the Vomeronasal System

Pheromone Sensing in Mammals: A Review of the Vomeronasal System

Pheromone Sensing in Mammals: A Review on the Vomeronasal System

Relationship between Prefrontal and Limbic Cortex: A Comparative Anatomical Review; pp. 65–80

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