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VI. Earth Life Emergence: Development of Body, Brain, Selves and Societies

1. The Evolution of Cerebral Form and Cognizance

Robson, David. A Brief History of the Brain. New Scientist. September 24, 2011. Whence a 21st century worldwide Brain can now view in retrospect the entire course of its earthly evolution and development. A succinct article that takes us from rudimentary sensory cells to the ramifying course of more complex and aware cerebral faculties.

Rosa-Molinar, Eduardo, et al. Hindbrain Development and Evolution. Brain, Behavior and Evolution. 66/4, 2005. A special issue on the organization of the nervous system as the vertebrate hindbrain evolves into cerebellum, pons, and medulla.

Roser, Matthew and Michael Gazzaniga. Automatic Brains – Interpretive Minds. Current Directions in Psychological Science. 13/2, 2004. An agreement with the popular view that unitary consciousness, our constant personal narrative, is constructed from a complex integration of distinct, local, simpler modular processes.

Roth, Gerhard. The Long Evolution of Brains and Minds. Dordrecht: Springer, 2013. As only now possible, the University of Bremen neurobiologist traces the ancient parallel course of neural and cognitive ramification from the earliest bacteria, archaea, and protozoa to human beings. Chapters such as Mind and Intelligence, The Language of Neurons, Invertebrate Nervous Systems, Invertebrate Cognition, Vertebrate Brains, Animal Consciousness, and Evolution of Brains and Minds convey a sensory stirring and elaboration unto reflective awareness. A tacit theme is then becomes evident as a long phylogeny of embryonic development. See Roth's paper Convergent Evolution of Complex Brains and High Intelligence in Philosophical Transactions of the Royal Society B (370/20150049, 2015) for a good synopsis.

Roth, Gerhard and Mario Wullimann, eds. Brain Evolution and Cognition. New York: Wiley; Heidelberg: Spektrum, 2001. An extensive volume by international researchers on the anatomy, physiology, development, and function of invertebrate, vertebrate, and human brains. As a general theme, a continuity by degrees of encephalization and subsequent conscious awareness is recognized. Human beings are now entering an extrasomatic cerebral realm through language.

Roth, Gerhard and Ursula Dicke. Evolution of the Brain and Intelligence. Trends in Cognitive Sciences. 9/5, 2005. An enhanced cerebral capacity has evolved independently in vertebrate classes of birds and mammals, and also in different orders of cetaceans and primates. By this view, a single ‘orthogenetic’ line leading to homo sapiens is ruled out, but a persistent advance in relative intelligence is evident.

The outstanding intelligence of humans appears to result from a combination and enhancement of properties found in non-human primates, such as theory of mind, imitation and language, rather than from ‘unique’ properties. (250)

Roumazeilles, Lea, et al. Longitudinal Connections and the Organization of the Temporal Cortex in Macaques, Great Apes, and Humans. PLoS Computational Biology. July, 2020. By way of advanced brain scan techniques, sixteen researchers based at Oxford University, Wellcome Centre for Integrative Neuroimaging and Radboud University, Donders Institute for Brain, Cognition and Behavior, can compare neural architectures across the range of our primate forebears. Our philoSophia vista then wonders what kind of Ecosmic to Earthosmic course proceeds to arduously evolve an intelligent, collaborative species whom altogether can reconstruct how they came to be. What is the nature of this “accumulated knowledge repository” (geonome?) which could serve to begin a second genesis cocreation?

The temporal association cortex is considered a primate specialization and is involved in complex behaviors such as language, a particular characteristic of humans. The emergence of these behaviors has been linked to major differences in temporal lobe white matter in humans compared with monkeys. It is unknown, however, how the organization of the temporal lobe differs across anthropoid primates. We systematically compared the organization of the major temporal lobe white matter tracts in the human, gorilla, and chimpanzee great apes and in the macaque monkey. We show that humans and great apes exhibit an expanded and more complex occipital–temporal white matter system. (Abstract excerpt)

A hominid is a member of the family Hominidae, the great apes: orangutans, gorillas, chimpanzees and humans. ... A human is a member of the genus Homo, of which Homo sapiens is the only extant species, and within that Homo sapiens sapiens is the only surviving subspecies. (Wikipedia)

Roumazeilles, Lea, et al. Longitudinal Connections and the Organization of the Temporal Cortex in Macaques, Great Apes, and Humans. PLOS Biology. July, 2020. By way of advanced brain scan techniques, sixteen researchers based at Oxford University, Wellcome Centre for Integrative Neuroimaging and Radboud University, Donders Institute for Brain, Cognition and Behavior, are now able to compare neural architectures across the range of our primate forebears. Our philoSophia vista then wonders what kind of Ecosmic to Earthosmic course arduously evolves and develops to an intelligent, collaborative species whom altogether can reconstruct how they came to be. What is the nature and purpose of this “accumulated knowledge repository” (geonome?) which could serve to begin a better genesis co-creation?

The temporal association cortex is considered a primate specialization and is involved in complex behaviors such as language, a particular characteristic of humans. The emergence of these behaviors has been linked to major differences in temporal lobe white matter in humans compared with monkeys. It is unknown, however, how the organization of the temporal lobe differs across anthropoid primates. We systematically compared the organization of the major temporal lobe white matter tracts in the human, gorilla, and chimpanzee great apes and in the macaque monkey. We show that humans and great apes exhibit an expanded and more complex occipital–temporal white matter system. (Abstract excerpt)

A hominid is a member of the family Hominidae, the great apes: orangutans, gorillas, chimpanzees and humans. ... A human is a member of the genus Homo, of which Homo sapiens is the only extant species, and within that Homo sapiens sapiens is the only surviving subspecies. (Wikipedia)

Sadtler, Patrick, et al. Neural Constraints on Learning. Nature. 512/423, 2014. A team of neuroscientists with multiple postings at the University of Pittsburgh, Carnegie Mellon University and Stanford University achieve another quantification of how new experiences are better accommodated if they can be assimilated with prior memory. See also Hava Siegelmann 2012 and Richard Watson, et al 2014 for similar findings in neural networks and life’s evolution.

Salas, Cosme, et al. Evolution of Forebrain and Spatial Cognition in Vertebrates: Conservation Across Diversity. Brain, Behavior and Evolution. 62/1, 2003. Although the vertebrate brain shows a range of diverse radiations, a common pattern of basic organization is consistently conserved across the long evolution of fish into monkeys.

We analyze here recent data indication a close functional similarity between spatial cognition mechanisms in different groups of vertebrates, mammals, birds, reptiles and teleost fish, and we show in addition that they rely on homologous neural mechanisms. (72)

Satterlie, Richard. The Search for Ancestral Nervous Systems: An Integrative and Comparative Approach. Journal of Experimental Biology. 218/4, 2015. A select article in an issue on the Evolution of the First Nervous Systems by a University of North Carolina marine biologist about the latest evidences of life’s insistence from its earliest phases on cerebral learning capabilities. See also Convergent Evolution of Neural Systems in Ctenophores by Leonid Moroz, and Evolution of Basal Deuterostome Nervous Systems by Linda Holland, Elements of a “Nervous System” in Sponges by Sally Leys, and Introductions by its editor Peter Anderson, the University of Florida marine bioscientist.

Even the most basal multicellular nervous systems are capable of producing complex behavioral acts that involve the integration and combination of simple responses, and decision-making when presented with conflicting stimuli. This requires an understanding beyond that available from genomic investigations, and calls for a integrative and comparative approach, where the power of genomic/transcriptomic techniques is coupled with morphological, physiological and developmental experimentation to identify common and species-specific nervous system properties for the development and elaboration of phylogenomic reconstructions. With careful selection of genes and gene products, we can continue to make significant progress in our search for ancestral nervous system organizations. (Abstract)

Savage-Rumbaugh, Sue, et al, eds. Apes, Language, and the Human Mind. New York: Oxford University Press, 1998. With regard to the sequential, complementary way brains evolved, its initial primate capacity is seen as a “wholistic intelligence” whence an entire scene is taken in all at once. Later hominids and human beings are characterized by a “hierarchical intelligence,” which is an analytical subset of the earlier global survey.

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