Human Developement

Developmental Psychology

Study of changes across the lifespan

What is the period of the zygote

1. Fertilized egg

2. Enters a two-week period of rapid cell division

3. Fertilization until implantation

What is the period of the Embryo

1. developing human organism from 2 weeks through 2nd month

2. major bodily systems form

What is the period of the fetus

1. Emergence of bone tissue until birth

2. growth and finishing stage

3. 38-40 weeks (full term)

Three stages of labor

Stage 1: Dilation and effacement of the cervix

Stage 2: expulsion of the fetus

Stage 3: expulsion of the placenta

What are the survival rates of premature infants?

23 weeks: 50%

25 weeks: 75%

39 weeks: 98%

What are the life-long health issue chances of premature infants?

23 weeks: 80%

25 weeks: 47%

39 weeks: 3%

What kind of reflexes do newborns have? (1:1, 2:5)

1. Permanent

   1. Breathing, blinking

2. Temporary

   1. Rooting (turning head towards touch)

   2. Grasping

   3. Planters grasp

   4. Moro (startle)

What are signs of neurological problems in newborns (2)

No reflexes at birth, reflexes last too long

What does social development encompass (3)

Feelings, interpersonal thought, interpersonal behavior

What are the two main types of attachment?

Infant to caregiver = attachment bond

caregiver to infant = caregiving bond

What is an