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Developmental Psychology Exam 1
Chapters 1-3
178
Psychology
Undergraduate 4
09/15/2014

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Term
Werner's Study
Definition
Examined 698 children's birth histories and collected data on their lives.
RESULTS: Found that quality of home environment played a larger role in child development than biological factors!
AKA people with birth problems only really experienced them when they weren't growing up in good situations
ENVIRONMENT IS MORE EXPLANATORY to Children development, BUT NOT MORE DETERMINISTIC
Term
Why Study Human Development?
Definition
To understand human nature!
study the relationship between early and later experiences!
Term
Romanian Orphanages
Definition
Workers in the orphanage were told not to interact with the babies, just to feed them and change them and that was it! by the time they were 2 or older (24-42 months), the children had determined emotional connection as useless, very much impaired their development
Term
Plato
Definition
A philosopher who determined that children are born with innate knowledge. PRO NATURE
Term
Aristotle
Definition
A philosopher who determined that all knowledge comes from experience. PRO NUTURE
Term
John Locke
Definition
Locke was a philosopher who saw inants as "tabula rasa" or a blank slate! was very PRO NUTURE
Term
Jean-Jacque Rousseau
Definition
He was a philosopher who believed children learn from their own actions. PRO EXPERIENCE/ NUTURE
Term
Sigmund Freud
Definition
Believed in Psychoanalytic Theory, that biological drives and unconscious influence development
Term
John Watson
Definition
Watson created the behaviorist theory! He stated that behavior is developed from rewards and punishments

He also did the little albert experiment! Showed children can be conditioned to specific responses
Term
Behaviorist Theory
Definition
Created by John Watson, it states that Children's behavior develops from rewards and punishments they get
Term
Little Albert Experiment
Definition
Done by John Watson! Watson showed a little baby a mouse, and the proceeded to play a scary loud sound afterward. After a couple of times, Albert became conditioned to be afraid of animals from his response. Albert was shown a bunny, and was frightened because he felt what he felt after hearing the scary sound
Term
Nauture
Definition
Nature refers to our biological endowment, especially from our parents genes!
EX: Our physical characteristics, Emotional Temperment
Term
Nuture
Definition
Nuture refers to our environments both physical and social that influence our environment.
EX: Prenatal Teretogens, Family Styles
Term
Developmental Systems View
Definition
The idea that there are no singular causes of something within an organism, but multiple factors that lead up to this system. The idea that someones environment, behavior, neural activity, genetics, all combine to create a system of a person
Term
Children Shape their own development by...
Definition
Shaping their environment! A child's actions through play, use of language, and attention patterns dictate what their environment will be like.

Older you get, more control they have! Get to pick friends etc
Term
Continuous Development/ Change
Definition
The idea that changes occur with age occur gradually in small increments
Term
Discontinuous Change/ Development
Definition
Change with age occurs in occasional large shifts. EX stage theory, like a caterpillar going into a cocoon, and then again into a butterfly as distinct changes
Term
Mechanisms of change
Definition
The interaction of genes and environment determines what chagnes occur and when they happen!

EX: gene influence, parenting influence both dictate when a child will learn something!
Term
Sociocultural Context
Definition
The physical, social, cultural, economic, and historical circumstances that make up a child's environment!

Everything that makes up a child's environment
Term
What dictates a child's individual different
Definition
-Genetic difference
-different treatment by different parents
-different reactions to similar experience
-different choice of environment, even those in same family
Term
Cognitive development
Definition
The development of thinking and reasoning
Term
Steps of Scientific Method
Definition
-Choosing a question
-Doing Background research
-Formulating a Hypothesis
-Testing the Hypothesis
-Drawing a Conclusion
Term
hypothesis
Definition
An educated guess about the outcome of your experiment
Term
reliability
Definition
The degree to which independent measurements of a given behavior are consistent

Doing same thing over and over
Term
Interrater reliability
Definition
The amount of agreement in the observations of different raters who witness the same behavior.

When observers agree about the results of the experiment
Term
Test-Retest Reliability
Definition
The degree of similarity of a child's performance will occur on two or more occasions.

When the same results occur over and over after re doing the experiment
Term
Validity
Definition
The degree to which a test measures what it is supposed to measure

Doing the thing you want it to do
Term
Internal Validity
Definition
The degree to which the effects the experimenter wanted can be attributed to the variables he manipulated.

How close your results correlate to YOUR variables
Term
External Validity
Definition
The degree to which results can be applied to the outside world.
Term
Structured Interview
Definition
A research procedure in which all participants are asked to answer the same question
Term
Clinical Interview
Definition
A procedure in which questions are adjusted in accord with the answer the interviewee provides.
Term
Naturalistic Observation
Definition
Examination of ongoing behavior in an environment not controlled by the researcher.

Children in their "natural Habitat"
Term
Structured Observation
Definition
A method that involves presenting an identical situation to each child and recording the childs behavior

Children in experimental environment
Term
Correlational Designs
Definition
Studies intended to indicate how variables relate to each other

*Similarity between variables
Term
Correlation Coefficient
Definition
A statistic that describes the strength and direction of a correlation ranging from -1 to 1
Term
Third Variable Problem
Definition
In correlational studies, it is the problem that a correlation between two variables is actually caused by a third!

EX: ice cream sales and murders in summer! does they cause eachother, or does it have to do with the temperature?
Term
Experimental Design
Definition
A design studying an independent variable and its causal effect on the dependent variable.
Term
Random Assignment
Definition
When participants in an assignment are done so randomly, so they have equal chances of ending up in each group/category
Term
Cross-Sectional Design
Definition
Children of different ages are studied at a single time.

EX: 20 2 year olds, 20 3 year olds, and 20 4 year olds are asked to perform the same task!
Term
Longitudinal Design
Definition
Children are examined repeatedly over a prolonged period of time.

EX: Observing a child when hes 2, then when hes 3, then when hes 4, and how they perform on a task as they get older
Term
Microgenetic Design
Definition
Children observed intensively over a short period of time while a change is occuring

EX: 20 infants seen every day for 4 weeks while they learn to crawl, and observing their performance on a certain task
Term
Ethical Issues in Developmental Research
Definition
Children are unable to give informed consent, so researchers must minimize potential risk and make sure they are outweighed by potential benefit!
Term
Preformationism
Definition
The idea that a preformed human being resided in the sperm, and would enlarge when entering the egg of a woman. It was a 1700s theory that was disclosed
Term
Epigensis
Definition
Aristole coined the term, it means the emergence of new structures and functions over the course of development.
AKA the sperm and the egg emerging and forming new structures and functions as the fetus grows
Term
Gametes
Definition
The reproductive cells of the body! AKA Egg and sperm. They each contain only half of the material of all the other cells in the body
Term
Conception
Definition
The union of an egg from the mother and the sperm from the father
Term
Gametes contain _______ chromosomes
Definition
23 Chromosomes, half the amount in all cells!
Term
Zygote
Definition
A fertilized egg cell (one with 46 chromosomes)
Term
Early Sex Differences
Definition
120-150 males are concieved for every 100 females because Y chromosomes are lighter and those sperm swim faster!
BUT boys are miscarried more, and are more vulnerable to disease and developmental disorders! Balances out
Term
Stem Cells
Definition
Embryonic cells, which can develop into any type of body cell!
Term
Developmental Process of cells
Definition
-Cell Division
-Cell Migration
-Cell Differentiation
-Apoptosis
Term
Cell Division
Definition
First step in the developmental process. 12 hours after fertilization, the zygote divides into 2 equal parts! and so on and so on!
Term
Cell Migration
Definition
During the Embryonic Period, Cell migration is when newly formed cells move from where they were created to a specific place on the embryo
Term
Cell Diferentiation
Definition
After many cell divisions and they begin to migrate, certain cells called stem cells begin to form into whatever cells they end up creating. It is the process of cells specializing to perform specific functions
Term
Apoptosis
Definition
Programmed cell death! there are certain cells that are designed to be destroyed due to evolutionary traits.
EX: wed have webbed feet without apoptosis
Term
Phylogenetic Continuity
Definition
The idea that we share may characteristics with out animal ancestors, especially mammals!
Term
Phylogenetic Continuity
Definition
The idea that we share may characteristics with out animal ancestors, especially mammals!
Term
3 stages of Prenatal Development
Definition
-Germinal (0-2 weeks)
-Embryonic (3-8 weeks)
-Fetal (9 weeks - Birth!)
Term
Germinal Stage
Definition
The period where the baby is a Zygote, during the stages of cell division. It is the 0-2 week period
-It is when the fertilized egg becomes a blastocyst, and travels down to the women's uterus! rapid cell division occurs
Term
Embryo/ Embryonic Stage
Definition
When a baby is 3-8 weeks old and organ development begins to occur! After this the embryo is 1 inch long!
There are 3 layers of the embryo:
Ectoderm
Mesoderm
Endoderm
Term
Fetus/ Fetal Stage
Definition
When a baby is 9 weeks to birth. This is where more organ development occurs, and sensory experiences and learning occur
Characterized by rapid development! Fetus experiences sense!
Term
Blastocyst
Definition
After 4 days, the cell division rapidly occurs where a hollow sphere of cells with a bulge of inner cell mass occurs. It travels down the Fallopian tube and into the uterus
Term
Ectoderm
Definition
THe first layer on the embryo. It includes parts like: skin, spinal cord, brain, sense organs, etc
Term
Mesoderm
Definition
The Middle layer of the embryo. It includes cells for the muscles, bones, and circulatory system
Term
Endoderm
Definition
The Bottom layer of the embryo. It includes cells for the digestive system, liver, pancreas, and respiratory system
Term
Placenta
Definition
The area that permits exchange of materials between bloodstream of fetus and mother. Acts as a membrane that regulates what is exchanged!
Term
Umbilical Cord
Definition
Contains Blood Vessels that travel between the placenta and developing organism aka Fetus! Tube where nutrients for baby travel
Term
Amniotic Sac
Definition
A transparent, fluid filled membrane that protects and surrounds the fetus
Term
Neural Tube
Definition
A groove formed in the top layer of the cells of the embryo, they eventually turn into the brain and spinal cord!
Term
Cephalocaudal Development
Definition
Pattern of growth in which areas near the hear develop earlier than areas farther away from head
Term
"Ontogeny Recapitulates Phylogeny"
Definition
The idea that the development of the human brain matches the development across species. AKA we develop our hindbrain first and then going into higher function areas like the forebrain that other animals dont have. This is believed to be FALSE
Term
In general, do babies behave different inside uterus vs. period shortly after birth?
Definition
No, they do pretty much the same things!
Term
By ____ weeks after gestation, most of the movements present at birth have appeared in a fetus
Definition
12 weeks
Term
Pre and Postnatal Continuity!
Definition
Behavior and learning before birth is related to behavior and learning after! Fetuses shape their own development
Term
Movements in Utero for a fetus
Definition
"Practicing" for external functions!
-hiccups
-swallowing
-moving
-waking
-fetal 'breathing'
Term
fetal breathing
Definition
After 10 weeks babies begin to "breath" even though no air is taken in or out. Instead, amniotic fluid is pulled and pushed out of the lungs! It only occurs 50% of the time
Term
Fetal Visual Experience
Definition
Not many visual experience, but does have REM sleep!
Term
Fetal Tactile Stimulation
Definition
Fetus's have many different ways of getting touch stimulation, get it alot!
Term
Fetus Taste Stimulation
Definition
Fetus's have taste preferences! They follow what the mother intakes, but also can have "sweet tooths!" An experiment where a doctor injected saccharin or a type of sugar into the amniotic fluid, it showed fetus's had a higher amniotic fluid intake! they did so more because they liked the taste!
Term
Fetal Smell Stimulation
Definition
Fetus's have preferences to foods associated to what a mother ate! They can smell curry or coffee or something strong in the amniotic sac
Term
Fetal Hearing Stimulation
Definition
Fetus's hear and react to voices, more specifically the mothers, from 6 months on! These sounds elicit exceeded heartrate and movement!
Term
Habituation
Definition
A simple form of learning that shows a fetus/ baby has learned something by a decreased response to repeated and continued stimulation!
Term
Decasper and Spence Study
Definition
In 1986, Newborn infants recognized rhymes and stories present to them before birth!
Term
Teratogen
Definition
AN external agent that can cause damage or death to prenatal development!
-The timing of when the teratogen is exposed to the fetus is key to how it will effect it!
Term
Sensitive Period
Definition
The period of time where developing organism is most sensitive to the effects of external factors! When teratogens are most effective
Term
Cigarette and Pregnant
Definition
-Baby and Mother receive less oxygen
-retarded growth and low birth weight
-increased risk of Sudden Infant Death Syndrome
-Low IQ, Hearing deficits, cancer
Term
Miscariage
Definition
Most common misfortune is spontaneous abortion (miscarriage)
-45% of conceptions result in early miscarriage (not getting pregnant)
-15-20% of pregnancies that women are aware of (later) are miscarried, "lose the baby"
Term
Fetal Alcohol Spectrum Disorder
Definition
When the mother drinks alcohol while baby is developing in utero, it leads to mental retardation, facial deformity, etc
Term
Illegal Drugs and Pregnancy
Definition
-About 4% of women who are pregnant use illegal drugs
-Marjuinna leads to effected memory learning and visual skills
-Cocaine leads to cognitive and social defects!
Term
How is the timing of prenatal exposure to cortisol from mother (stress) associated with Cognitive Development
Definition
Early in pregnancy exposure to stress shows lower IQ shores for infants
Term
Pregnancy and Maternal Age
Definition
Being too young (prior to 16) and too old can lead to birth defects
Term
Labor Pressure from birth
Definition
Pressure from birth can lead to squeezing of head and breaking of skull leading to cone head. This squeezing pushes amniotic fluid out of lungs as well!
Term
Effects of Epirdural Anesthesia on Mother
Definition
-Reduces pain in labor
-Sometimes slows labor (mother less able to sense when to push)
Term
Effects of Epidural Anesthesia on Neonate
Definition
Drug strength relates to effects on fetus, but:
-May temporarily depress frlow of oxygen
-short term less responsive and poor motor control, cry more. Baby on pain meds!
Term
What is the approximate proportion of C Sections in US?
Definition
30%!
Term
Apgar Scale
Definition
A scale to determine the "normality" of the baby to detect problems. They are taken 1 minute and 5 minutes after the birth! 7-10 points means baby is normal, 4-7 means require some measures, and a baby with a apgar score under 4 needs immediate resusciation!
Term
Approximately what percentage per day do Western (US) newborns spend sleeping?
Definition
16 hours! or 66% of them time
Term
REM Sleep
Definition
Active, dreaming sleep
Term
Non-REM Sleep
Definition
Quiet/ Deep sleep
Term
Autostimulation Theory
Definition
The idea that during REM Sleep, in the fetus and in a newborn is when babies develop their visual system. They have to "watch their dreams" because they dont watch enough of the outside world inside mother/ right after birth
Term
Crying
Definition
Babies cry when they are hungry, sick, in pain, etc. As they get older it becomes their method of communication
Term
Crying peaks at about____ weeks.
Definition
It peaks at about 6 Weeks! It occurs typically in the late afternoon
Term
Colic
Definition
Excessive, inconsolable crying for no apparent reason
Term
Soothing Crying
Definition
It can be done by swaddling, repetitive, stimulation, carrying, and touch
Term
Swaddling
Definition
Wrapping a baby tight in clothes or a blanket and preventing limb movement. It makes the baby feel comfortable.
Term
Negative Outcomes at Birth
Definition
Things that can go wrong
-Infant Mortality
-Low Birth Weight
Multiple Risk Model
-Poverty
Risk & Resilience
Term
Infant Mortality
Definition
The death rate during the first year after birth!
-IN 2007, It was the Lowest in History, but not lowest in world!
WHERE YOU ARE BORN EFFECTS YOUR INFANT MORTALITY RATE
Term
Why is US infant Mortality rate not number 1?
Definition
The US does not have universal healthcare like places in Europe
Term
Average Weight of Newborns in the US
Definition
7.5 Pounds
Term
Low Birthweight Babues
Definition
Less than 5.5 pounds
Term
Very Low Birthweight
Definition
Less than 3 pounds
Term
Two types of Low Birth Weight Infants
Definition
-Premature
-Small for Gestational Age
Term
Premature low birth weight baby
Definition
When a baby is premature, it can lead to low birth weight!
Term
SGA Low Birth Weight Babies
Definition
WHen a baby has a low birth weight less than its normal gestational age
Term
Low Birth Weight Leads to.....
Definition
-medical complications
-neurosensory deficits
-lower IQ
-Lower education achievement
Term
How many weeks of gestation will a baby have a 50% chance of survival?
Definition
25 weeks!
Term
Intervention methods to help Low Birth Weight
Definition
- Massage/ Touch
- Music/ Singing!
Term
Mutliple Risk Model
Definition
The idea that the more risks a baby is exposed to the more likely the negative outcome in development of the child
RISK EXAMPLES:
maternal distress, low SES, paternal criminality, martial problems, maternal psychiatric disorder
Term
Poverty as a Developmental Hazard
Definition
Poverty and Socioeconomic Status are related to developmental hazard! With poverty comes multiple risk, and with that leads to development problems
Term
Developmental Resilience
Definition
When an infant/ child resists the risk factors when growing up and develops "normally." This is caused from:
-biological factors
-Personal characteristics
-Responsive care from a caregiver
Term
Individuals Differ from one another by about _____% of their genes
Definition
About 1 to 1.5%!
Term
Genome
Definition
The complete set of genes of any organism
Term
Humans share about ____% of their DNA with primates
Definition
90%
Term
3 Elements of the Model of Interaction
Definition
Genotype
Phenotype
Environment
Term
Genotype
Definition
The genetic material an individual inherits
Term
Phenotype
Definition
The observable expression of a Genotype.

EX: Genotype - HH
Phenotype - Blue eyes
Term
Environment as part of Gene interaction
Definition
Environment is considered every aspect of an individual and his or her surroundings other than genes!
Term
4 relations of Genetic and Environmental Forces
Definition
1. Parents genetics to Child's Genotype
2. Contributions of the child's Genotype to Phenotype
3. Contributions of the Environment on their Phenotype
4. Influence of phenotype on environment
Term
Parents Genotype -> Child's Genotype
Definition
Genetic material is passes on from parent to child, via genes and chromosomes!
Term
Chromosome
Definition
Molecules of DNA that transmit genetic information. They carry biochemical instructions involved in the formation and functioning to the organism
Term
Genes
Definition
Sections of Chromosomes that are the basic units of heredity for all living things
Term
Genetic Mutation
Definition
A change in the section of DNA caused by either random or environmental factors
Term
Random Assortment
Definition
The shuffling of the 23 pairs of chromosomes in sperm and egg, CHANCE Determines which member of pair goes to new sperm and egg!
Term
Crossing Over
Definition
The process by which sections of DNA switch from one chromosome to another during meiosis
Term
Child Genotype -> Child Phenotype
Definition
Only SOME of the genes that a child inherits are EXPRESSED! The expressed ones make up the phenotype
Term
Regulator Gene
Definition
Genes that control the activity of other genes
Term
Allele
Definition
2 or more Different forms of a human gene


EX: Dominant Allele B
Recessive Allele b
Term
Homozygous
Definition
2 of the same allele, either both recessive or dominant
BB or bb
Term
Heterozygous
Definition
When you have a combination of two different alleles
Bb
Term
Polygenic Inheritance
Definition
Inheritance of something that pertains to more than 1 gene!
EX: shyness, aggression, behavior disorders depend on different genes
Term
An example of a disease with an unidentified genetic basis!
Definition
Autism Spectrum Disorder
Term
Recessive Gene Disease
Definition
Occurs only when an individual has BOTH recessive genes (bb only)
EX: PKU, Sickle cell, etc
Term
Dominant Gene Disease
Definition
Occurs when someone has at least one Dominant allele for the Condition (Bb or BB)
EX: Huntingtons disease, neurofibromatosis
Term
Chromosome Anomalies
Definition
When you have a deficiency in one or more of your chomosomes
EX: Down syndrome occurs when you have a defective Trisomy 21 chromosome)
Term
Sex-Linked Inheritance
Definition
When you suffer from a disease that only occurs if you are that gender
EX: Male pattern baldness
Term
Unidentified Genetic Basis
Definition
Diseases that we have no gene basis for
-Autism Spectrum Disorder
-Tourette Syndrome
-Dyslexia
Term
Phenylketonuria (PKU)
Definition
A disorder related to a defective recessive gene on chromosome 12 that prevents metabolism of phenylalanine
Term
norm of reaction
Definition
The idea that a given genotype will develop differently in different environments (react to different settings)
Term
Environment -> Phenotype reactions
Definition
Observable characteristics result from the interaction of environmental factors AND childs genetic makeup
EX: noticing the amount of sunlight on a plant's height
Term
Phenotype -> Environment Relation
Definition
The idea that children shape their own environment
EX Active children evoke responses from others, select surrounding and experiences!
Term
Genotype -> Environment Interaction
Definition
Maltreated men are more likely to engage in antisocial behavior
-Maltreatment can lead to inactivity in the MAOA gene, which leads to antisocial behavior!
Term
Behavior Genetics
Definition
The science concerned with how variation in behavior is associated with a combination of genetic and environmental factors
Term
Heritable
Definition
A statistical estimate of the Proportion of variance on a given trait among individuals in a given population that is attributed to genetic differences
-ONLY TO POPULATIONS, Not individuals
-Applies to only a particular group living at the same time
-HIGH HERITABILITY DOES NOT IMPLY IMMUTABILITY
Term
Multifactorial
Definition
Refers to trained that are affected by a host of environmental factors as well as genetic ones.

BEING EFFECTED BY BOTH MANY ENVIRONMENTAL GENETIC FACOTRS
Term
Twin study
Definition
Compares correlations for identical twins with same sex fraternal twins
Term
Environmental Effects on Behavioral Genetics
Definition
Siblings/ Twins with non shared environments increases the differences between family members. Environments matter/ shape development
Term
Identical Twin
Definition
Same genes twin
Term
Fraternal Twin
Definition
Different Genes Twin
Term
Adoptive Twin Study
Definition
THE GOLD STANDARD FOR BEHAVIOR GENETICS
-Compares identical twins who were reared apart and lived in different environments
Term
Heritability example
Definition
If heritability of depression is 60% that means of the Population studied, 60 percent of the variation of gene expression for depress related to genes!
If another great depression happened, heritability of depression would go down, because environment would effect likelihood of being depressed more
Term
Central Nervous System (CNS)
Definition
The brain and spinal cord (and Blood Brain Barrier)
Term
Peripheral Nervous System (PNS)
Definition
Everything that goes to and from CNS
Term
Neurons
Definition
Specialized cells that are the basic units of the brains information system
Term
Cell Body
Definition
Contains the basic material that keeps neuron functioning
Term
Dendrites
Definition
Neural Fibers that receive input input from the post synaptic neuron
Term
Axon
Definition
Neural fibers that conduct electrical signals to connections (synapse) with other nuerons
Term
myelin sheath
Definition
Layer of glial cells that surround axon for support of Action potential
Term
Cerebral Cortex
Definition
The "gray matter" of brain that plays a primary role in what is thought to be particularly human like in us. Involves higher functioning, seeing hearing, writing, feeling emotion
Term
Cerebral Lateralization
Definition
The specialization of hemispheres of the brain for different modes of processing
Term
Corpus Callosum
Definition
A dense tract of nerve fibers that enable the two hemispheres of the brain to communicate
Term
Neurogenesis
Definition
The proliferation of neurons through cell division
-Neurongs migrate to destinations via radial glia, differentiate into different types of cells
-the axons elongate, and the dendrites form spines
Term
Synaptogenesis
Definition
The formation of synapses and connections of neurons between other neurons
Term
Pruning
Definition
The developmental process through which synapses that are not used are eliminated. DONT USE IT YOU LOSE IT
Term
Plasticity
Definition
The capacity of the brain to be affected by experience
Term
Experience and Plasticity
Definition
Experience determines which brains excess synapses will be pruned and which will be maintained
ones that are frequently activated are preserved (neural Darwinism!)
Term
Experience Expectant Processes
Definition
Neural connected generated by typical human experience
EX: vision input, auditory input
Term
Experience Dependent Processes
Definition
Neural Connections generated/ maintained by experience UNIQUE to an individual
EX: Connections supporting playing an instrument, playing chess, etc
Term
Worst time to suffer a brain injury
Definition
During Neurogenesis and neuro migration, which is prenatal and the first year after birth.

THIS IS WHEN BRAINS ARE MOST PLASTIC
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