PSYCH 250 Lecture Notes - Lecture 7: Synaptogenesis, Autism Spectrum, Mental Chronometry
Document Summary
Entering the preschool world (years 2-6) . 3-7 year olds have large heads and round bodies. With age, limbs get longer and bodies thin out . Weight and height double between 2 and 12 years (infants triple weight from 0 to 1) . Gross motor skills: involve large muscle movements . Ex: pump a swing, climb a ladder, ride a bike, throw, catch and kick a ball. Requires- muscular control, patience, and judgment- slowly developing abilities. Myelination: development of a fatty sheath that speeds neuronal transmission. Band of neurons that connect the two brain hemispheres hemispheres coordinate functions . In u. s. , 1 in 700 children die from an unintended injury before 15 years . 3x risk of cancer (leading lethal child disease) They understand the world in basically the same way as adults do; they just know fewer facts, think more slowly, etc. Development is the accumulation of facts and increase in basic processing skills.
