Neuroscience

Doreen Pang Mrs. Trainor AP Psychology 4 November 2016 Module 9-1 Infancy and Childhood The developing brain overproduces neurons. Pruning: Comment by Doreen Pang: You don't gain new neurons; they're all there at birth the process of weeding out unnecessary connections and strengthening the important ones. Occurs during puberty Maturation Maturation: Comment by Doreen Pang: Biological growth processes that enable orderly changes in behavior, relatively uninfluenced by experience Comment by Doreen Pang: Standing before walking, babbling before talking, nouns before adj Biological growth processes that enable orderly changes in behavior, relatively uninfluenced by experience. standing before walking babbling before talking using nouns before adjectives

Doreen Pang Mrs. Trainor AP Psychology 13 October 2016 Module 5-2 The Cerebral Cortex Cerebral Cortex an intricate covering of interconnected neural cells that forms a thin surface layer on the cerebral hemispheres Expansion of cerebral cortex tight genetic controls relaxes organism?s adaptability increases Frogs and other amphibians have a small cortex operates extensively on programmed genetics instructions The larger cortex of mammals offers: increased capacities for learning and thinking allows them to be more adaptable Structure of the Cortex 80% of brain?s weight = the ballooning left and right hemispheres covered w/ axons connection between brain?s surface and its other regions Cerebral cortex brain?s hemisphere contains 20-23 billion nerve cells

Doreen Pang Mrs. Trainor AP Psychology 10 October 2016 Module 4-3: How Neurons Communicate: The Neural Chain Specialized cells in the sensory systems of the body Can turn some energy --> action potentials Neural impulses Our brain only uses neural energy to communicate specialised cells that translate outer energy into neural impulse Receptor cells in the eye turn light into a neural impulse the brain understands. Sensory (Afferent) Nerve Carry info. from the sensory receptors to: spinal cord brain A network of cells that take thermal energy and translate into neural impulse Connect the sense organs to the brain and spinal cord. Interneurons Nerve cells in the brain and spinal cord responsible for processing information. Related to sensory input and motor output.