1/327
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
---|
No study sessions yet.
What is psychology?
The study of behavior and mental processes.
Naive Realism
belief that the way we see the world is precisely as it actually is
Levels of Analysis in Psychology (6)
Social, Behavioral, mental/Cognitive, Neurological, Neurochemical, Molecular
Social Analysis
Interactions, relationships with others
Mental/Cognitive Analysis
Thoughts/feelings
Neurological analysis
brain STRUCTURE
Neurochemical
Brain CHEMISTRY
Molecular
Genes
Multiple Determinism
Many forces work together to cause behavior
Belief Perseverance
stick to initial beliefs even when evidence contradicts them
science vs. intuition
-We make mistakes when we base our reasoning on intuition rather than on science
-Researchers create comparison groups and look at all the data
individual differences
variations among people in their thinking, emotion, personality, and behavior
Hindsight Bias
tend to think you predicted something all along
Confirmation Bias
only seek evidence that supports a hypothesis/neglect contradicting evidence
Barnum Effect
tendency to accept certain info as true even when it is so vague as to be worthless
ex:horoscopes, fortune-telling, personality tests
sense of control and comfort
a person's ability or perception of their ability to affect themselves, others, their conditions, their environment or some other circumstance.
Anecdotal Evidence
an informal observation that has not been systematically tested
evidence in the form of stories
Empirical Evidence
scientific evidence obtained by careful observation and experimentation
Ad Hoc Immunizing Hypotheses
escape hatch or loophole that defenders of a theory use to protect their theory from falsification
Lack of Self Correction
never adjust claims when contrary evidence is published
Patternicity
brain predisposed to make order
Pareidolla
seeing meaningful images in meaningless visual stimuli
ex: seeing faces in objects
Apophenia
over-detect patterns/connections among unrelated or random phenomena
cause of superstition
Logical Fallicies (6)
Faulty reasoning strategies including:
- circular reasoning
- false dichotomy
- emotional reasoning
- argument from antiquity
- appeal to authority
-bandwagon
appeal to authority fallacy
To justify support for a position by citing an esteemed or well-known figure who supports it.
false dichotomy fallacy (either/or)
wrongly assuming that there are only two alternatives to consider. Look, either you're against the war or you're a warmonger. You're not against the war. So you're a warmonger.
Scientific Skepticism
approach of evaluating all claims with an open mind but insisting on persuasive evidence before accepting them
Correlation
measure of the extent to which two factors vary together, and thus of how well either factor predicts the other.
Causation
the belief that events occur in predictable ways and that one event leads to another
Circular Reasoning
repeats the claim as a way to provide evidence
Either-or
forces listeners to choose between two alternatives when more than two alternatives exist
Dunning-Kruger Effect
People who are least skilled at a task, suffer from the most overconfidence.
Overconfidence
the tendency to be more confident than correct
Emotional Reasoning
Drawing a conclusion based on an emotional state
Ex: "I feel guilty, so I must have done something bad," "I'm feeling inadequate, so I must be worthless," or "I feel afraid, so I must be in a dangerous situation."
Argument from Antiquity
something must be true because people have believed it for a long time
Appeal to Authority
persuades by appealing to the respect people have for a famous person or institution
Critical Thinking Principles (4)
- should be subjected to standardized tests
- ruling out rival hypothesis
- correlation vs causation
- replicability
Ruling out rival hypotheses
Have important alternative explanations for the findings been excluded?
Falsifiability
theory generates hypothesis that could be disproved
Occams Razor
- find simpler explanation
- cut away extra info
Peer Review
- anonymous expert
- determine acceptability for publication
- suggest changes
- not all journals peer reviewed
Naturalistic Observation
gathering data from real-world settings
Psychology used to be the same as...
philosophy
Psychology was first used to investigate...
spiritualism
Types of psychology studies in history
Structuralism Wundt and Turner
Functionalism - William James and Darwin
Behaviorism - Skinner
Cognitivism - Piget
Psychoanalysis - Freud
Structuralism
- Wundt and E.B. Turner
- identify most basic elements of psychological experience
- used introspection
Functionalism
- William James (influenced by Darwin)
- understand adaptive purposes of psychological characteristic
- bridge between structuralism and behaviorism
- stream of consiousness
Behaviorism
- Watson and Skinner
- focus on what is observable
- focus on environmental impacts
Cognitivism
- Piaget and Neisser
- mental process involved in different aspects of thinking
Psychoanalysis
- Freud and Jung
- focus on internal psychology processes of which we were unaware
Types of Psychologists
Basic - scientists
Applied - Scientists and Practitioners
Pseudoscience
a collection of beliefs or practices mistakenly regarded as being based on scientific method.
Pseudoscience examples
astrology
anecdote
short account of event
often used as evidence for pseudoscience
Facilitated Communication
- 1990's
- developed for Autism
- communication only occurred via the facilitators
Heuristics
- mental shortcuts
- rules of thumb
- less cognitive energy required but oversimplifies
System 1 Thinking
- intuitive
- fast
- automatic
System 2 Thinking
- analytical
- slow
- effortful
Base Rate Fallacy
ignore how common something actually is in a population
Cognitive Biases
- hindsight
- overconfidence
Case Study Designs
- studying one, or a small number of people for extended period of time
- common with rare types of brain damage or mental illness
- helpful in providing existence proof
Self-report (surveys)
A research approach that requires subjects to reveal their own information
Reliability
consistency of measurement
Validity
extent to which a measure assesses what it claims to measure
Correlation Coefficient
measure of the strength and direction of an association between two variables
Volunteer Bias
non-random selection of samples in research also affected
External Validity
extent to which we can generalize our findings to the real world
Internal Validity
extent to which we can draw cause and effect inferences
Experimental Design
test for cause and effect relationships between variables
Confounds
difference between the experimental ad control groups aside from internal validity
randsom selection
a method of selecting a sample from a population; every member of the population has an equal chance of being selected
- increases the likelihood that the sample represents the population and that one can generalize the findings to the larger population
random assignment
assigning participants to experimental and control conditions by chance, thus minimizing preexisting differences between those assigned to the different groups
Inferring Causation
This is a problem that occurs when people assume that two related variables mean one is the result of the other
Placebo
something which has a positive mental effect, but no physical effect
double-blind study
An experiment in which neither the participant nor the researcher knows whether the participant has received the treatment or the placebo
Demand Effect
changes in behavior by experimental subjects due to cues about what constitutes appropriate behavior
They guess what they're supposed to be doing
IRB (International Review Board)
groups of people responsible for reviewing proposed research to ensure that it meets the accepted standards of science and provides for the physical and emotional well-being of research participants
Experimenter Expectancy Effect
researcher's hypothesis leads them to unintentionally bias a study outcome
Nerve Cell Components (Neuron)
- cell body (soma)
- dendrites
- axon
Cell Body (Soma)
- center of neuron
- contains nucleus
Dendrites
branchlike extension that receive information from neurons
Axons
"tails" that spread out from the cell body
Glial Cells
- non-neuronal cells that maintain homeostasis, from myelin, provide support for neurons
- plentiful (1:1 ratio)
- "personal assistant" to neurons
Neuronal Components (4)
- axon terminal
- neurotransmitters
- synapse
- myelin
Axon Terminal
knob at end of the axons
Neurotransmitters (definition)
chemical messengers
Synapse
space between neurons
Myelin
increases speed of impulses
Resting Potential
no neurotransmitters acting on neuron
Threshold Potential
The minimum membrane potential that must be reached in order for an action potential to be generated.
ionotropic receptors
ions can pass through the receptor
Nicotine and serotonin receptors
metabotropic receptors
Second messenger inside the cell relays the message
Norepinephrine, epinephrine, histamine, dopamine, neuropeptides, and endocannabinoids
Central Nervous System
The brain and spinal cord
A subdivision of the human nervous system comprising the brain and spinal cord. Transmits & receives messages to & from the PNS
Peripheral Nervous System
the sensory and motor neurons that connect the central nervous system to the rest of the body
Heart-rate/breathing
somatic nervous system
Conveys information between the CNS and the body, voluntary movement
Automatic Nervous System
the part of the nervous system responsible for control of the bodily functions not consciously directed, such as breathing, the heartbeat, and digestive processes.
Sympathetic Nervous System
the division of the autonomic nervous system that arouses the body, mobilizing its energy in stressful situations
Ex: accelerated heart rate/sweating
(automatic nervous system component)
Parasympathetic Nervous System
the division of the autonomic nervous system that calms the body, conserving its energy
Salivation
(automatic nervous system component)
Action Potential
- charge exceeds the threshold
- abrupt waves of electric discharge
- messages are added as they come into the cell
- some excitatory, some inhibitory
- all or non response
- originate near cell body and travel down axon
- fire 100-1000 times per second
Synaptic Transmission
communication between neurons