Exam 5: The First Two Years: Biosocial Development

Explain the changes that occur within the infant brain during the first two years of life and discuss the importance of pruning.

From birth until age 2, dendrites in the cortex increase _____.

The temporary increase in the number of dendrites in the first two years of life is known as transient exuberance.

The speed of physical growth in the first year is continued during the second year.

The outer layers of the brain are referred to as _____.

Binocular vision is the ability to focus on objects that are far away.

Temporary rapid growth of dendrites is referred to as _____.

The part of the brain that seems to be dedicated to the perception of faces is the _____ area.

Most 2-year-olds weigh almost 20 pounds.

On average, children begin to walk well at approximately _____ of age.

Breast-feeding reduces the risk of which of the following?

_____ refers to infants' inborn ability to remedy deficits in their environments in order to promote their own brain development.

Between 12 and 24 months, growth takes place at a _____ rate than in the first year.

Between _____ months of age, most infants can lift their midsections and crawl on "all fours."

Why are breast-fed babies less likely to contract infectious diseases than bottle-fed babies?

Depth perception appears by _____ months of age.

Brain weight triples during the first two years of life primarily because of the growth of _____.

On average, which skill does an infant develop last?

Infants usually double their birthweight by the end of their first year.

Susan Beal hypothesized that _____ played a role in SIDS deaths.