FINAL exam review Flashcards
Learning
A long-term change in behavior or capabilities due to experience.
Habituation
Decrease in the strength of a response due to repetition.
Classical Conditioning (Pavlovian Conditioning)
Study of association formation.
What happens in classical conditioning?
We connect ideas that were not originally connected.
ex.) Jim makes the Microsoft sound go off and offers Dwight a mint everything. Dwight becomes used to this so automatically reached his arm out for a mint when the sound goes off.
Operant Conditioning (Skinnerian or Instrumental Conditioning)
Like classical conditioning, it is the study of association formation, but it is different because the responses are emitted not elicited - the learners operate on the environment and learn from its consequences.
Does behavior increase or decrease in reinforcement?
Increase
List and describe the 2 types of reinforcements.
Positive (presentation of something “rewarding”)
Negative (removal of something aversive)
*negative does not mean bad punishment - it just means something is removed.
Does behavior increase or decrease with punishment?
Decrease
List and decribe the 2 types of punishments.
Positive (presentation of something aversive, also called aversive punishment)
Negative (removal of something desired, also called response cost)
Note that what matters is the result on _____, not what you think is rewarding or punishing.
behavior
Schedules of reinforcement?
Continuous and Intermittent
What are the 4 subtype schedules of reinforcement?
Fixed Interval
Variable Interval
Fixed Ratio
Variable Ratio
*Fixed/Variable crossed with Interval (time) or Ratio (behaviors).
Fixed Interval
Learning is: slower
Extinction is: easier to extinguish
Variable Interval:
Learning is: slower
Extinction is: harder to extinguish
Fixed ratio:
Learning is: fast
Extinction is: easier to extinguish
Variable Ratio:
Learning is: fast
Extinction is: harder to extinguish
Adoption studies compare adopted children with their _____ parents and _____ parents.
adoptive; biological
Temperament
A persons characteristic emotional reactivity and intensity.
Heritability
The proportion of variation among individuals that we can attribute to genes
What is the overall heritability on IQ, Extraversion, and Neuroticism?
IQ ~ 50%
Extraversion ~ 37
Neuroticism ~ 30%
What was striking about the “Bringing up Monkey” video?
The hyper baby monkeys go out and play but they must have their mother in cite; they will go and check up on her after time.
The shy monkeys are always with their moms ; they are stressed when they aren’t.
The monkeys personalities come from their genes.
What provides the raw materials in the brain?
Genes
What puts all the materials in the brain together?
environment
Rats in enriched environments, after only 60 days, had:
7% - 10%: heavier brains
20% more neural connections
In lecture, Dr. Gentile said a good mnemonic about brain development is:
The neurons that fire together, wire together.
If 50% of IQ is inherited, where does the other half come from?
environment
What are some aspects of family life that affect IQ?
- How much you read to your child.
- Attending class - actually makes you smarter
- Even after controlling for parents’ education level, single parent families, race, and poverty matters.
The idea of Cumulative Risk Factors suggests what?
The more risk factors, the lower your IQ (vise versa)
Early intervention research demonstrates that if we want to improve IQs for at-risk kids, starting when is most effective?
Starting early- before age 5.
Microsystem
The immediate environment with which a child directly interacts
Mesosytem
The connections that exist among Microsystems
Exosystem
The social settings a child is not part of, but the still affects him.
Macrosystem
The general cultural context for all other systems.
How is the Nature-Nurture debate like a rectangle?
Nature and nurture always interact; it doesn’t matter how much of each.
What are the 3 periods of Fetal Development?
Germinal
Embryonic
Fetal
Germinal Period
Conception - 2 weeks
Fertilization –> zygote –> blastocyst –> attaches to uterine wall
Embryonic Period
2 - 8 weeks
Organogenesis
Fetal Period
8 - 40 weeks
Growth
A pregnancy the ends before the fetus is mature enough to survive outside the uterus.
Miscarriage or Spontaneous Abortion
When do more miscarriages occur?
In the first 3 months.
What is the percentage that miscarriages occur among confirmed pregnancies or fertilizations?
15-20% of all confirmed pregnancies
~75% of all fertilizations
What are most miscarriages caused by?
Chromosomal abnormalities
Teratogens
Things that can harm the fetus.
ex.) alcohol, viruses, smoking
Explain the jobs are neurotransmitters.
Neurotransmitters bind to receptors in the 2nd neuron, causing a change in the 2nd neuron.
Are all neurotransmitters excitatory?
no
Are are neurotransmitters equal?
no
The amount of Neurotransmitters can be _____.
changed
The amount of receptors can be _____.
changed
What does “up-regulation” mean?
an increase in receptors.
What does “down-regulation” mean?
a decrease in receptors.
Long-Term Potentiation
Increases the likelihood that a single neuron can cause an action potential (fire).
How does learning occur?
Generally by increasing the strength of synaptic communication so certain pathways can work more readily then they did before.
Observational Learning
Individuals have the capability to learn from others.
What happened in the Bobo Doll Experiment?
The child watched a video of an adult treating a doll poorly - the adult would throw it in the air, hit, kick, say mean things to it.
When the child was put into a room with the same doll, the child copied the adults behavior.
What did Bandura say about whether exposure to aggressive modeling is cathartic (reduces viewers aggression?)
When a child sees violence, they copy it.
Associative Learning
learning from association between things
–> most of psychology has been focused on this type of learning
Discrimination Learning
The process by which animals or people learn to respond differently to different stimuli.
It does not require reinforcements or punishment…just experience.
How was discrimination learning portrayed in class?
The card sorting task; the student had to sort the cards into 3 different decks based on similarities/ differences she saw between them.
What was learned from the card sorting task?
What is learned is to detect differences that already exist there is no need to create associations, just to discriminate between what is there - like wine tasting.
Learning and memory are ____ a correct copy of what just happened - they’re a ______ ______.
Not; constructive process
How would one describe learning and memory?
malleable, fallible, trickable.
Our memories are probably _____ most of the time.
wrong
What can cause our memories to be wrong? (6)
- Attention
- Interference
- Misinformation effect
- Retelling
- Schemas
- Source confusion
How many languages on the planet?
over 6,000
How did B.F Skinner believe that every child will learn at least one language?
Through operant learning principles
- trying to make sounds
- imitation
- reinforcements or punishments
Language Acquisition Device (Noam Chomsky)
The basic idea is that the brain has evolved a structure to help us learn and extract the grammatical rules of language.
People now doubt that there is such a structure.
Children demonstrate internalization of grammatical rules as shown by
- overgeneralization
2. the “Wug Test”
What are the stages of productive language development?
- Crying and cooing
- Babbling - 4 months
- Turn taking
- Single words - 1 year
- Two word sentences - 18 months
- Four word or longer sentences - 3 years
Spoken language also includes _____, or the “melody” of language.
prosody
Chromosomes
Threadlike structures made of DNA that contain the genes.
DNA
A complex molecule containing the genetic information that makes up the chromosomes.
Gene
A segment of DNA capable of synthesizing a protein.
Genome
The complete instructions for making an organism
Genotype
The specific genes that an individual has.
Phenotype
The observed characteristics of that individual - how genes are expressed
Roughly how many genes does an individual have?
30,000 (that is about twice as many as a fruit fly)
Who do we share 99% of your genes with?
The chimpanzee - our closest genetic cousin
What are some traits that genes can be linked to?
addiction, shyness, thrill seeking, sexual orientation etc.
Natural selection
The principle that among all range of inherited trait variations, those that lead to increased reproduction and survival will more likely be passed on to succeeding generations.
Mutations
Random errors in gene replication that lead to a change in the sequence of nucleotides.
What are the 2 major sources of genetic diversity?
Sex and mutations.
Sexual selection
Changes in species are made not only by “survival of the fittest” but also by active choices when choosing mates.
What percentage of the worlds species clone themselves?
1%
Evolutionary psychology
Uses evolutionary principles to study human behavior.
If evolution has been acting in our ancestors for millions of years, we should be able to…
find traces of it in our behavior, and it will probably be unconscious.
Most of our likes and dislikes, preferences, attitudes, and behavior is due to _____ reasons, and it is largely _____.
evolutionary; unconscious
What does the nature/nurture debate ask?
It asks whether we are who we are because of heredity or environment?
Behavior Genetics
A field that looks at the effects of genetics.
What percent of genes do each type of twins share?
Identical twins: 100% of genes
Fraternal twins: 50% of genes on average
Twin Studies
Compare identical twins with fraternal twins.
What is the equation for obesity?
energy in > energy used
Aggression is _________.
Multi-casual
What are 3 big risk factors for aggressive behavior?
Anti-social behavior, personal characteristics, and family characteristics
Aggression
Behavior that is intended to harm another person, and that person would not want to be harmed.
What are the 3 subtypes of aggression?
- Physical - hitting, kicking, threatening
- Relational - harming the victim by use of relationships or harming the victim’s relationships (rumors, ignoring, ostracizing)
- Verbal - insulting
Aggression can be…
Direct - hitting, insulting, etc.
Indirect - stealing, rumor spreading
“The line of good and evil lies in the center of…”
every human heart” - Alexander Solzenitsyn
What are the possible explanations for evil?
Dispositional - “bad people do bad things”
Situational - “bad situations create and environment where aggressive/evil can occur”