What We Learn And When We Learn It Sensitive Periods In Development

What we learn and when we learn it: sensitive periods in development

The impact of training or experience is not the same at all points in development. Children who receive music lessons, or learn a second language before age 7-8 are more proficient as adults. Early exposure to drugs or trauma makes people more likely to become addicted or depressed later life. Rat pups exposed to specific frequencies from 9-13 days post-partum show expanded cortical representations of these frequencies. Young birds must hear and copy their native song within 1-2 months of birth or they may never learn it at all. These are examples of sensitive periods: developmental windows where maturation and specific experience interact to produce differential long-term effects on the brain and behavior. While still controversial, evidence for the existence of sensitive periods has grown, as has our understanding of the underlying mechanisms of brain plasticity. Behavioral evidence from studies of language, psychopathology or vision in humans has been complemented by evidence elucidating molecular, gene and hormonal mechanisms in animals. It has been proposed that sensitive periods can be both opened and closed by specific experience, and that there are multiple, overlapping sensitive periods that occur through-out development as functions come on line. It is also likely that experience-dependent behavioral or brain plasticity accrued during one sensitive period can serve as a scaffold on which later experience and plasticity can build. Based on current knowledge, there are a number of broad questions and challenges to be addressed in this domain, these include: generating new information about the neurobiological mediators of structural and functional changes; proposing models of brain development that will better predict when sensitive periods should occur and what functions are implicated; investigation of the interaction between experience during a sensitive period and pre-existing individual differences; and the relationship between experience during a sensitive period and on-going experience. The goal of this Research Topic is to bring together scientists in different fields whose work addresses these issues, including animal and human developmental neuroscience, language and cognitive development, education, developmental psychopathology and sensory neuroscience.

What We Learn and when We Learn it

Developmental Psychopathology, Developmental Neuroscience

The complete reference of biological bases for psychopathology at any age Developmental Psychopathology is a four-volume compendium of the most complete and current research on every aspect of the field. Volume Two: Developmental Neuroscience focuses on the biological basis of psychopathology at each life stage, from nutritional deficiencies to genetics to functional brain development to evolutionary perspectives and more. Now in its third edition, this comprehensive reference has been fully updated to better reflect the current state of the field, and detail the newest findings made possible by advances in technology and neuroscience. Contributions from expert researchers and clinicians provide insight into brain development, molecular genetics methods, neurogenics approaches to pathway mapping, structural neuroimaging, and much more, including targeted discussions of specific disorders. Advances in developmental psychopathology have burgeoned since the 2006 publication of the second edition, and keeping up on the latest findings in multiple avenues of investigation can be burdensome to the busy professional. This series solves the problem by collecting the information into one place, with a logical organization designed for easy reference. Consider evolutionary perspectives in developmental psychopathology Explore typical and atypical brain development across the life span Examine the latest findings on stress, schizophrenia, anxiety, and more Learn how genetics are related to psychopathology at different life stages The complexity of a field as diverse as developmental psychopathology deepens with each emerging theory, especially with consideration of the rapid pace of neuroscience advancement and genetic discovery. Developmental Psychopathology Volume Two: Developmental Neuroscience provides an invaluable resource by compiling the latest information into a cohesive, broad-reaching reference.