The genetic correlates of neuropsychiatric disorders are now known but none have come close to explaining the great variety of human psychiatric illnesses This volume written by a neuropsychiatrist and an evolutionary biologist offers a new paradigm for understanding these disorders Proposing that neuronal pathways which underlie neuropsychiatric conditions mirror unique human capabilities the authors iterate a new paradigm by which to understand human psychiatric illnesses Human capabilities such as theory of mind language and complex social behaviors are explored through their histological neuroanatomical and functional brain imaging correlates The capacity for representation the authors suggest is central to the understanding of the human brain Brain structures such as the frontal pole temporal pole and fronto insular cortex are highly developed in humans and are associated with representation Other brain regions including the dorsal anterior cingulate cortex auditory cortex and hippocampus are linked with directed effort while the ventral anterior cingulate cortex orbital frontal cortex and amygdala are related to emotional encoding Both networks interact with representional regions and the dorsolateral prefrontal cortex Conditions like schizophrenia may result in part from a failure of the networks associated with directed effort while bipolar disorders may arise from a failure of networks associated with emotional encoding Similarly autism may result from a failure of representational brain regions frontotemporal dementia may be associated with failure of several discrete networks in later life From this perspective neuropsychiatric disorders are selective failures of brain networks involved in the integration of cognition affect and perception A better understanding of these brain networks will assist psychiatric and mental health researchers in the search for environmental factors and genetic correlates of disorders as well as aid in the development of more effective treatments for these diseases This volume will be of interest to psychiatrists neurologists psychologists biologists and imaging scientists anyone who has ever wondered what makes the human brain human

The Human Illnesses by Peter Williamson MD (2011-02-03) PDF

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