ど Pdf ☂ What's Going on in There?: How the Brain and Mind Develop in the First Five Years of Life online ⎵ Kindle Ebook By Lise Eliot ␁

ど Pdf ☂ What's Going on in There?: How the Brain and Mind Develop in the First Five Years of Life online ⎵ Kindle Ebook By Lise Eliot ␁ ど Pdf ☂ What's Going on in There?: How the Brain and Mind Develop in the First Five Years of Life online ⎵ Kindle Ebook By Lise Eliot ␁ Nature or Nurture It s All in the BrainWouldn t you know it Just as I get this beautiful, healthy neuron filled with dye and ready to image, Julia wakes up and starts crying The experiment takes a long time to set up I ve been at it most of the day and need just ten uninterrupted minutes She has been so cooperative sleeping like a baby a nine week old, to be exact in her cozy, blanket lined computer box, safe and secure near my desk in the darkened laboratory Finally, all the conditions are right the microscopic neuron, vividly fluorescing down to its tiniest branches, an electrode carefully implanted to measure its electrical activity I m about to stimulate the cell s input pathway, to test whether it will learn from simulated sensory experience when of course, Julia wakes up and wants to be fed.What the heck I pick her up, hike up my shirt, and start nursing, all the while twiddling dials with my free left hand Take off the holding current, I tell myself Set the extracellular voltage, configure the data acquisition, and then go The pulse goes out, the neuron fires a lovely train of electrical potentials, and the cell fills with calcium, color coded, on the computer screen, with red for the most intense spots, yellow in between, and blue for the cold spots distant branches that don t seem to have many pores for calcium to flow in It s a great cell, an almost ideal experiment, until Julia suddenly pulls off my breast curious, no doubt, about the flash of light on the computer screen and, kicking her right foot into the delicate micromanipulator, knocks my perfect electrode right out of the perfect cell.No I wail, staring in disbelief at the computer screen I watch as the neuron blows up into a big balloon, its membranes ripped open by the moving electrode As it ruptures, the image on the computer screen flashes to red, then fades to orange, yellow, green, and blue as the dye dissipates The cell is dead, a quick demise that is painful only for me.Nobody ever said it would be easy being a mother and neuroscientist But the juxtaposition does have its rewards at times Here I am, trying to figure out how the neurons in a young rat s brain change with experience, and I have my own little experiment brewing right under my nose Annoyed as I am by Julia s gymnastics, who can blame her baby brain, just trying to get some exercise for its budding motor pathways Everything I m trying to study in young rats is going on in her small head, a billion times over, every second of every day.I spent ten years studying neural plasticity the ways our brains change with experience before Julia came along I always knew I wanted to have children, but I had no idea how much my own research related to parenting until I actually became a mother myself Like most new parents, I found myself suddenly fascinated by the nature nurture issue, the degree to which Julia s future talents and weaknesses would be a product of our genes or her experience The question is as old as humanity itself, but it is than a mere academic debate Whether one sides with nature or nurture makes a tremendous difference in the way we, both as parents and a society, raise our children.Earlier in this century, the pendulum had swung fully to the environmental side In a famous series of studies in the 1940s, psychiatrist Rene Spitz compared two groups of disadvantaged babies one group was raised in what was then considered a perfectly adequate foundling home, and another group was comprised of infants whose mothers were in prison and who were being reared in a nearby nursery Although both institutions were superficially similar both were clean and provided the babies with adequate food, clothing, and medical care they differed enormously in the amount of nurturing and stimulation each provided.Babies in the prison nursery were fed, nursed, and cared for by their own mothers, who lavished enormous attention and affection on them These children developed normally, in spite of the institutional setting and the fact that the number of hours of contact with their mothers was limited Babies in the foundling home, by contrast, had very little stimulation there was only one nurse for every eight infants, and except for brief feedings and diaper changes, each baby was kept isolated in his or her crib, its sides draped with sheets to prevent the spread of infection With nothing to look at or play with and, worst of all, a bare minimum of human contact and affection, these babies suffered devastatingly An enormous number didn t even survive to two years of age Those who did were physically stunted, highly prone to infection, and severely retarded, both cognitively and emotionally By three years of age, most couldn t even walk or talk, and in marked contrast to the exuberant nursery reared children, they were strikingly withdrawn and apathetic.Spitz s work went a long way toward changing adoption policies eliminating the waiting periods that were at one time thought necessary to allow babies natural personalities and intellectual talents to unfold Early adoption is now universally recognized as the best option for orphans and unwanted babies, although the tragic fact is that babies in many parts of the world continue to wither in orphanages even worse than Spitz described.Spitz showed that early nurturing and stimulation are essential to child development, and he was not alone in this view At the time, the field of psychology was dominated by the theory of behaviorism, which proposed that all our actions, from the simplest smile to the most sophisticated chess move, are learned through reward and punishment, trial and error interactions with other people and objects in the world Babies, according to this view, are born as blank slates, without predispositions, and infinitely malleable through parental feedback and tutoring John Watson, the founder of modern behaviorism, even went so far as to claim Give me a dozen healthy infants, well formed, and my own specified world to bring them up in and I ll guarantee to take any one at random and train him to become any kind of specialist I might select doctor, lawyer, artist, merchant chief, and yes even beggar man and thief, regardless of his talents, penchants, abilities, vocations, and race of his ancestors.No doubt Watson overstated his case, but such emphasis on early environment eventually led to the establishment of important social programs like the welfare safety net and Head Start If children are so greatly malleable, then the best way to ensure a great society is by improving the environment of its youngest members.These days, things have swung to the opposite extreme We are now fully entrenched in the Era of the Gene Every day, molecular biologists get a little closer to pinpointing which stretch of chromosome is responsible for some dreaded disease or complex behavior alcoholism, Alzheimer s disease, breast cancer, dyslexia, sexual orientation The government sponsored Human Genome Project has made us heady with the potential of decoding the blueprint for every individual, figuring out where each of our strengths and weaknesses lies, what troubles may lie ahead, and eventually, how to cure our genetic ills These fast paced discoveries are exciting, to be sure, but the renewed emphasis on genes also has its discomfiting side the tendency, fostered by books such as The Bell Curve and The Nurture Assumption, to say that parents and society make little difference A child s fate, according to this view, is largely determined by heredity, leaving little we can do to improve matters.As a neuroscientist, it s hard to fully accept this position Of course, genes are important, but anyone who has ever studied nerve cells can tell you how remarkably plastic they are The brain itself is literally molded by experience every sight, sound, and thought leaves an imprint on specific neural circuits, modifying the way future sights, sounds, and thoughts will be registered Brain hardware is not fixed, but living, dynamic tissue that is constantly updating itself to meet the sensory, motor, emotional, and intellectual demands at hand.My own fascination with neural plasticity was only magnified with newborn Julia in my arms If ever there was a time for experience to mold her brain, this was it Although we know from studies of adult learning that the brain remains malleable throughout life, it is massively so in infancy Brain surgeons can even remove an entire hemisphere from the cerebral cortex of a young child which in rare instances is the only treatment for profound epilepsy , and he or she will suffer surprisingly little loss of physical function or intellectual capacity.I found myself wondering about every interaction What is this caress, this diaper change, this lullaby doing to Julia s brain Which circuits are already turned on, and which are still wiring up What happened, at six weeks, to make her suddenly start smiling, or at eighteen weeks, so that she could finally reach out and grasp her rattle Can Julia see those computer designs I taped up in her box Hear the neuron firing away through the audio monitor Know that I am her mother Are we, her enraptured parents, in any way responsible for these wiring events, or would they have happened without any particular nurturing on our part, unfolding, like a budding flower, along a programmed trajectory that requires nothing but the most basic food, water, and air In other words, I needed to know What is going on inside that little head, and what difference can I, as a parent, make in her putting it all togetherWith impressive depth and clarity, Eliotoffers a comprehensive overview of current scientific knowledge about infant and early childhood brain developmentPopular science at its best Publishers Weekly, starred review Marvin Gaye What s Going On YouTube Dec , Marvin Album Version Couldn t find this anywhere on here, thought I d do a little justice Non Blondes Up Feb Artist Best Of All The s, and Writers Linda Perry Licensed to YouTube by UMG behalf of WM Germany Sony ATV Publishing, UMPI, UBEM, SOLAR Music What song Wikipedia is American recording artist Gaye, released in the Motown subsidiary Tamla Originally inspired police brutality incident witnessed Renaldo Obie Benson, was composed Al Cleveland produced himself Lyrics Genius Lyrics an exquisite plea for peace Earth, sung man at height crisis In top male vocal star, yet he frustrated assembly Music WHAT S GOING ON album had wanted make very long time but held back from making due strictness founder president, Berry Gordy Marvin, who went through many trauma as child young adult with alcoholic abusive father well marriage 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exemples poser vos questions Gratuit My Two Dads TV Series Cast Crew IMDb My cast crew credits, actors, actresses, directors, writers Faculty Rosalind Franklin University Abel, Marc Dean, Professor Pharmaceutical Sciences, Cell Biology Anatomy College Pharmacy, Chicago Medical What's Going on in There?: How the Brain and Mind Develop in the First Five Years of Life

    • Relié
    • 544 pages
    • 0553378252
    • What's Going on in There?: How the Brain and Mind Develop in the First Five Years of Life
    • Lise Eliot
    • Anglais
    • 2016-10-03T11:12+02:00