Chapter 1
Five principles of development – Development is multidimensional, multidirectional, plastic, influenced by multiple contexts and multiciliary
● Three controversies of development
1.
Continuous: slow, gradual change
○ Quantitative change (i.e., change in number/quantity)
Discontinuous: abrupt change
○ Qualitative change (i.e., change in quality)
2.
Active: I interact with and shape the world around me
Passive: I am shaped and influenced by my environment
3.
Nature: inborn genetic traits, maturational processes, evolution
Nurture: physical and social environment (family, home, school, workplace, etc.)
Psychoanalytic and behaviorist theories (basic focus/important terms) Freud’s psychosexual theory
• Psychoanalytic theories
o Freud's Psychosexual Theory: behavior driven by unconscious (sexual) drives
• Erikson’s psychosocial theory of development
o First life span view of development
o What explains human behavior?
o Unconscious drives - Ex. Oedipus complex
• Behaviorism:
o Classical conditioning: learning through association of stimuli
o Operant conditioning: learning based on environmental consequences
• Bandura's Social Learning Theory
o Observational learning: learning by watching & imitating others
o Reciprocal determinism: individuals and the environment interact and influence each other
• Behaviorist theories
o Pavlov's Classical Conditioning: learning through associations
o Skinner's Operant Conditioning: behavior increases with reinforcement and decreases with punishment
o Bandura's Social Learning Theory: we learn by watching others behave
Contextual theories (basic focus/important terms) - Vygotsky’s Sociocultural Theory
○ Transmission of culture through social interaction
○ Cognitive development as social process
○ Bronfenbrenner’s Bioecological Systems Theory
○ Development results from ongoing interactions between the person and their environment (across several levels)
● Cross-sectional research design
○ Comparing different groups at the same time
○ Disadvantage: Cohort effects
● Longitudinal research design
○ Comparing same people over time
○ Disadvantage: Attrition (dropout)
Sequential research designs
- Longitudinal
○ Comparing same people over time
○ Disadvantage: Attrition (dropout)
Type of measurement in developmental research and limitations of each
- Observation - Naturalistic observation – need to clearly define behaviors
Structured observation – participant reactivity
○ Naturalistic observation
○ Structured observation
- Self-report - Interviews – if using a set script or question list, flexibility is limited; if not using a set script, then consistency is limited
Questionnaires/surveys -- potential for biased responses
○ Interviews
○ Questionnaires/surveys
- Physiological - E.g., eye tracking technology, heart rate, etc. - can't be used for everything, there may be some things we can't measure this way
○ E.g., eye tracking technology, heart rate, etc.
Rights of research participants - Do good and avoid harm, Responsibility, Integrity, Justice
Informed consent: participants' informed, rational, voluntary agreement to participate
o Minors cannot legally consent; instead, they provide assent
Confidentiality: responses will not be shared with others
Information about the results
Treatment
Respect for autonomy
Consent procedures with children
Chapter 2
Genetic counseling
- Helps with risk determination
Recommended when:
○ There is a family history of heritable disorders
○ Mother is over the age of 35
○ Fetal development appears abnormal
○ Parents are members of an ethnicity at risk for particular genetic disorders
Genetic screening and blood tests
Determining how to proceed
Sex selection
Select sex of fetus
Ratio imbalances
Prohibited in many countries
Value of male vs. female
What if this expanded to other characteristics?
Methods used for prenatal diagnosis
Reproductive technologies
Artificial insemination ($300-$1,000+)
○ Injection of sperm into a woman
In vitro fertilization ($12,400+)
○ Hormones stimulate maturation of several ova
○ Ova are surgically removed
○ Fertilized in a petri dish with sperm
○ Cluster of cells implanted in woman's uterus
Surrogacy ($100,000+)
Adoption
Reasons for choosing adoption- Same reasons as people who have biological children, Valuing family ties, desire to be a parent, etc.
Parental education and income - Typically, higher parental education and income
Adoption and child outcomes
- Adoptive children tend to spend more time with parents and have more educational resources
- Adoptive children can have academic and behavioral challenges
- Mistreatment experience pre-adoption can influence adjustment
- Quality of the adoptive parent-child relationship influences outcomes
Foster care
Chapter 3
Three stages of prenatal development
1. Germinal period (0-2 weeks) – begins at fertilizations and zygote begins cell division and creation of blastocyst
2. The embryonic period (3-8 weeks) Support structures that form after the embryo develops:
Amnion: A membrane that holds amniotic fluid
Placenta: A principal organ of exchange between the mother and developing organism
Neural tube: Will develop into the central nervous system
3. The fetal period ( 9 weeks birth) - grows rapidly, organs become more complex and functional Lanugo: Fine, down-like hair that covers a fetus' body
Vernix caseosa: Greasy coating that protects fetal skin
Age of viability = 22 weeks
Three layers of the embryonic disc - early cell structure of embryo develops into layers
Ectoderm: upper layer; becomes skin, nails, hair, teeth, sensory organs, and nervous system
Endoderm: lower layer; becomes digestive system, liver, lungs, pancreas, salivary glands, and respiratory system
Mesoderm: middle layer; forms later; becomes the muscles, skeleton, circulatory system, and internal organs
Vernix caseosa - Greasy coating that protects fetal skin
Lanugo - Fine, down-like hair that covers a fetus' body
Age of viability- 22 weeks
Teratogens - Agents that causes damage to prenatal development
Principles of teratology
Critical Periods
Certain periods in which the developing organism is more susceptible to damage (e.g., embryonic period)
Dose
Amount of exposure influences teratogens' effect (e.g., longer time and quantity= more impacts on development)
3. Individual Differences
o Vulnerability may vary with genetics
o Genetic makeup of mother and prenatal environment can affect the likelihood of exposure to teratogens
4. Complicated Effects
o Same teratogen can have different effects on different people
o Effects can manifest in different ways over time
§ Sleeper Effects: effects of the teratogen appear later in development
Medical and behavioral assessments of newborns
Apgar scale: Provides a quick, easy assessment of a baby's immediate health
• Perceptual capabilities
o Senses of taste and smell well-developed at birth
• States of arousal: degrees of wakefulness
o Newborns spend about 50% of sleep time in REM
Low birth weight infants
• LBW is considered anything below 5.5 pounds
• Types of LBW newborns
o Preterm: premature, born before due date
o Small-for-date: born full term, but experienced slow growth and are smaller than expected
• LBW babies face higher rates of developmental challenges
• Small-for-date babies tend to have more serious problems than preterm babies