Presentation on theme: "What Is Neuroscience? Function of the Brain and Nervous System."— Presentation transcript:
What Is Neuroscience? Function of the Brain and Nervous System
What Is Neuroscience? Neuroanatomy: Structure is Key to Function
What Is Neuroscience? Function of Neurons There are approximately 100 billion neurons in the human brain The human brain has 100 trillion synaptic connections There are about 3 million miles of axons in the human brain There are over 1,000 disorders of the brain and nervous system
What Is Neuroscience? Diseases of the Nervous System Alzheimer’s Parkinson’s Stroke Epilepsy Paralysis Obesity?
What Is Neuroscience? At least 30 million neurons in the entire visual cortex are activated by the single image of a house or face For centuries, people thought that the heart, not the brain, was important for memory. The expression "memorize by heart" is derived from this old belief Perception, Learning, Memory
What Is Neuroscience? How Drugs Work Botox temporarily paralyzes muscles by interfering with acetylcholine, which transmits nerve signals to muscles. Sales of the wrinkle-softening toxin Botox totaled $309.5 million in 2001 In 2002, the US government spent close to $19 billion treating and preventing drug abuse
What Is Neuroscience? Genes And Behavior
What Is Neuroscience? Development The weight of the human brain triples during the first year of life, going from 300 grams to 900 grams When children are six years old, they can understand approximately 13,000 words; high school graduates know at least 60,000 words
What Is Neuroscience? Evolutionary and Comparative Perspective
What Is Neuroscience? Sex Differences The number of neurons in the neocortex of females is 19.3 billion; in males, the number of neurons in the neocortex is 22.8 billion The brain of the great physicist Albert Einstein weighed 1,230 grams. This is far below the average brain weight of 1,400 grams In 2000, 495 doctorates were awarded in neuroscience; 39.4% of these new PhDs were women
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What Is Neuroscience? The Place to Start in Psychology Fundamental Understanding of Behavior (normal and abnormal!) Technical Area with Widespread Applications More Than Lab Work...