Lifespan Chapter 3 Flashcards
Average weight at birth?
7.5 pounds
Average length at birth?
20 inches
Average weight and height at 2 years of age?
30 pounds and 32-26 inches
What is head-sparing?
happens in malnourished children; head grows but bodies do not
How do we track the growth of babies?
use norms and percentiles, points on a scale of 1 to 99
What are the effects of malnutrition?
Reduced weight, Stunted height, and Slow growth of head
How much do newborns sleep?
18 hours a day
What is transient exuberance and when does it occur?
A huge increase in neural connections over the first two of life
five-fold increase in first two years
What is pruning and when does this occur?
normal neurons wither from non-use, happens the first two years(biosocial)
What is plasticity and how can it affect development?
The idea that some traits are moldable and thus can change during life (ex. Personality, abilities)
What is the difference between experience expectant and experience dependent?
Experience expectant – necessary for normal development requires basic common experiences (ex. Talking, touching)
Experience dependent – requires certain and varied experiences varies between people (ex. Language you hear you then speak)
What are the five senses present at birth?
Sight, sound, taste, touch, and smell
When does hearing begin?
About 5 months
When is vision most accurate?
Most readily focus on objects
What is the distance of the clearest vision for newborns?
12-18 inches away