I Can Hear You Whisper [EPUB]
05 November 2014, 13:13
2014 | EPUB | 1.89MB
An investigation into the science of hearing, child language acquisition, neuroplasticity, brain development, and Deaf culture.
A mother notices her toddler is not learning to talk the way his brothers did… Is something wrong? Her search for answers is a journey into the mysteries of the human brain.
Lydia Denworth’s third son, Alex, was nearly two when he was identified with significant hearing loss that was likely to get worse. Her sweet boy with the big brown eyes had probably never heard her lullabies.
Denworth knew the importance of enrichment to the developing brain but had never contemplated the opposite: Deprivation. How would a child’s brain grow outside the world of sound most of us take for granted? How would he communicate? Would he learn to read and write—weren’t phonics a key to literacy? How long did they have until Alex’s brain changed irrevocably? In her drive to understand the choices—starting with the angry debate between supporters of American Sign Language and the controversial but revolutionary cochlear implant—Denworth soon found that every decision carried weighty scientific, social and even political implications. As she grappled with the complex collisions between the emerging field of brain plasticity, the possibilities of modern technology, and the changing culture of the Deaf community, she gained a new appreciation of the exquisite relationship between sound, language and learning. It became clear that Alex’s ears—and indeed everyone’s—were just the beginning.
An acclaimed science journalist as well as a mother, Denworth interviewed the world’s experts on language development, inventors of ground-breaking technology, Deaf leaders, and neuroscientists at the frontiers of research. She presents insights from studies of everything from at-risk kids in Head Start to noisy cocktail party conversation, from songbirds to signal processing, and from the invention of the telephone to sign language.
Weaving together tales from the centuries-long quest to develop the cochlear implant and simultaneous leaps in neuroscientific knowledge against a tumultuous backdrop of identity politics, I Can Hear You Whisper shows how sound sculpts our children’s brains and the life changing consequences of that delicate process.
The Invisible History of the Human Race [EPUB]
04 November 2014, 16:02
2014 | EPUB | 0.7MB
How biology, psychology, and history shape us as individuals
We are doomed to repeat history if we fail to learn from it, but how are we affected by the forces that are invisible to us? In The Invisible History of the Human Race Christine Kenneally draws on cutting-edge research to reveal how both historical artifacts and DNA tell us where we come from and where we may be going. While some books explore our genetic inheritance and popular television shows celebrate ancestry, this is the first book to explore how everything from DNA to emotions to names and the stories that form our lives are all part of our human legacy. Kenneally shows how trust is inherited in Africa, silence is passed down in Tasmania, and how the history of nations is written in our DNA. From fateful, ancient encounters to modern mass migrations and medical diagnoses, Kenneally explains how the forces that shaped the history of the world ultimately shape each human who inhabits it.
The Invisible History of the Human Race is a deeply researched, carefully crafted and provocative perspective on how our stories, psychology, and genetics affect our past and our future.
Snakes, Sunrises, and Shakespeare [EPUB]
04 November 2014, 15:35
2014 | EPUB | 5.32MB
Our breath catches and we jump in fear at the sight of a snake. We pause and marvel at the sublime beauty of a sunrise. These reactions are no accident; in fact, many of our human responses to nature are steeped in our deep evolutionary past—we fear snakes because of the danger of venom or constriction, and we welcome the assurances of the sunrise as the predatory dangers of the dark night disappear. Many of our aesthetic preferences—from the kinds of gardens we build to the foods we enjoy and the entertainment we seek—are the lingering result of natural selection.
In this ambitious and unusual work, evolutionary biologist Gordon H. Orians explores the role of evolution in human responses to the environment, beginning with why we have emotions and ending with evolutionary approaches to aesthetics. Orians reveals how our emotional lives today are shaped by decisions our ancestors made centuries ago on African savannas as they selected places to live, sought food and safety, and socialized in small hunter-gatherer groups. During this time our likes and dislikes became wired in our brains, as the appropriate responses to the environment meant the difference between survival or death. His rich analysis explains why we mimic the tropical savannas of our ancestors in our parks and gardens, why we are simultaneously attracted to danger and approach it cautiously, and how paying close attention to nature’s sounds has resulted in us being an unusually musical species. We also learn why we have developed discriminating palates for wine, and why we have strong reactions to some odors, and why we enjoy classifying almost everything.
By applying biological perspectives ranging from Darwin to current neuroscience to analyses of our aesthetic preferences for landscapes, sounds, smells, plants, and animals, Snakes, Sunrises, and Shakespeare transforms how we view our experience of the natural world and how we relate to each other.