Development of the nervous system Development of the nervous system refers to the processes that generate, shape, and reshape the nervous system of animals, from the earliest stages of embryogenesis to adulthood The field of neural development draws on both neuroscience and developmental biology to describe and provide insight into the cellular and molecular mechanisms by which complex nervous systems develop, from the Neuroplasticity Neuroplasticity, also known as brain plasticity and neural plasticity, is the ability of the brain to change throughout an individual s life, e.g brain activity associated with a given function can be transferred to a different location, the proportion of grey matter can change, and synapses may strengthen or weaken over time. Research in the latter half of the th century showed that many The Cochlea HHMI BioInteractive Also available in Spanish on our YouTube channel en Espaol Anatomy of the Cochlea Background Both music and the structure of the inner ear are integrated in Mechanisms regulating melanogenesis SciELO ABSTRACT Skin pigmentation is an important human phenotypic trait whose regulation, in spite of recent advances, has not yet been fully understood. Holiday Lectures HHMI BioInteractive Over the year history of the program, the Holiday Lectures on Science has covered topics in evolution, earth science, virology, and biodiversity to name just a few. Hidden versus Not so Hidden Hearing Loss Canadian Hidden versus Not so Hidden Hearing Loss By Colleen G Le Prell, PhD The term hidden hearing loss was explicitly defined as a selective reduction in the number of synapses connecting the inner hair cells IHCs and their auditory nerve AN targets, resulting in a decrease in the amplitude of wave I of the sound evoked auditory brainstem response ABR. Mechanisms of Aging Ben Best The vast range of maximum lifespan differences between species provides convincing evidence that longevity is genetically influenced An elephant lives about times longer than a mouse, yet both animals have roughly the same number of lifetime heartbeats the elephant at per minute and the mouse at per minute. Hearing Loss Ear, Nose, and Throat Disorders Merck Worldwide, about half a billion people almost % of the world s population have hearing loss More than % of people in the US have some degree of hearing loss that compromises their daily communication, making it the most common sensory disorder About B Vitamins and the Brain Mechanisms, Dose and MDPI The B vitamins comprise a group of eight water soluble vitamins that perform essential, closely inter related roles in cellular functioning, acting as co enzymes in a vast array of catabolic and anabolic enzymatic reactions Their collective effects are particularly prevalent to numerous aspects of brain function, including energy production, DNA RNA synthesis repair, genomic and non genomic Nervous System Brain and Special Senses II Vision Birds, with the possible exception of diurnal primates e.g humans , are the vertebrates which may rely most heavily on vision to function in their environment The most obvious visually dependent behavior of birds is flight, but birds also exhibit an impressive range of visually guided behaviors other than flight, e.g foraging, predator detection, mate choice.