Behavioral Genetic1

Behavioral Genetic1 - built inside out fetal...

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Behavioral Genetics –Intermediate Developmental Causes (4-6) Includes: Genetic guidance of development, proteomics and annotation, regulatory genes, homeotic genes, neural development, postnatal development Neural Tube Formation-first longitudinal groove forms and then groove forms into tube Comparative Brain Development Archetypal Stage—Lateral, Ventral, Medial, and Dorsal (Counterclockwise beginning with Lateral) Ontegeny does not really recapitulate phylogeny—common ancestral stage Hox Genes make Transcription Factors (Mouse and Fly Hox Genes 1bya separation) Folding in Brain Development Eye Development—optic cup and ectoderm form retina and lens The Growth Cone-Extending Neurons (transmission and high density of mitochondria) How Connected? Via accretion, energetically costly, with CAM and SAM guidance (almost amoeba-like) ***CAMS-cell adhesion molecules (immune like recognize other neurons) SAMS-surface adhesion molecules—recognize on underlying surface Neuronal Migration-glial guide fibers across cortex; new cortical cells climb along positions and cortex
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Unformatted text preview: built inside out; fetal encephalization Behavior-hand to hand ; reflex response 10-14 weeks Cephalopeliciv disproportion Gorilla Birth-ape quick and easy birth, cp disproportion minimal neonates well developed Upright posture and infancy,etc… Brain is tripled (neoteny) Pelvis strengthened/development lengthened 50%, gestation 13%/Face shortened/Long legs, arms shortened Reflexes-blinking, withdrawal, grasping, rooting and sucking, automatic march Myelination of Nerves after birth Motor maturation and walking Visual and auditory cortex thickness cores. To fast and slow development of perception Hippocampus-more densely branched , also growth in visual cortex—universals of psychosocial growth; fear of strangers—parental separation fear Limbic System-Four F’s, memory input and emotion; limbic myelination 4-6 how experience changes the genes LOW LG-pockets, High LG-no little pockets Deprivation and Vision development –assume the obvious. Social Deprivation in monkeys—obvs....
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Behavioral Genetic1 - built inside out fetal...

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