1. Lifespan Development
Physical Development

2. Conception
Zygote
23 pair of chromosomes
DNA
Genes
Genotype
Phenotype

3. Prenatal Development Germinal Stage (conception to week 2)
Zygote divides then embeds in uterine wall
Embryonic Stage (week 2 – 8)
95 % of organs begin to form
Sexual differentiation takes place (week 7 or 8)
Fetal Stage (week 9 – birth)
Organs finish forming and function
Age of viability (week 22 – 26)

4. Physical Development Infancy Fastest time of development
Brain is fastest developing organ
Early and Middle Childhood
Motor Development
Height: 2 – 3” per year
Weight: 5 – 7 lbs. per year

5. Physical Development Adolescence 2nd fastest time of growth Puberty
Primary and Secondary Sex Characteristics
Menarche / Semenarche

6. Physical Development Young Adulthood Middle Adulthood Late Adulthood
Peak
Biological aging begins (senescence)
Middle Adulthood
Gradual decline
Menopause
Late Adulthood

7. Cognitive Development
Lifespan Development
Cognitive Development

8. Piaget’s Theory of Cognitive Development
Schemas
Assimilation
Accomodation
Operations

10. Development of Moral Thinking
Kohlberg’s Stages of Development of Moral Thinking
Pre-conventional Level:
Based on external forces and avoiding punishment.
Conventional Level:
Based on society’s norms and the approval of others.
Post-conventional Level:
Based on a personal moral code.

11. Psychosocial Development
Lifespan Development
Psychosocial Development

12. Attachment
A strong affectional tie that binds a person to an intimate companion.
Characterized by:
Affection
A desire to maintain proximity in order to regulate distress

13. Phases of Attachment Phase 1 (birth – 2 months) Phase 2 (2 – 8 months)
Separation anxiety - Secure base
Stranger anxiety - Social referencing
Phase 4 (2 years and up)

15. Identity Develoment Marcia’s 4 Identity Statuses
Based on crisis (conscious decision making) and commitment (personal commitment)
Diffusion: confusion and little progress (no crisis or commitment)
Foreclosure: status determined by parents / others, not personal exploration (commitment w/o crisis)
Moratorium: Exploring alternatives but not settled on one (crisis w/o commitment)
Achievement: Deliberately chosen identity (crisis w/ commitment)

16. Influences on Development
Environment
Teratogens
Experience
Parents
Heredity
Parenting styles
Authoritarian
Permissive
Authoritative
Neglectful
Critical Periods
Culture
Peers