Midterm Flashcards
Psychology
The scientific study of behaviour and mental processes and how they are affected by an organism’s physical state, mental state, and external environment
The scientific study of behaviour and mental processes and how they are affected by an organism’s physical state, mental state, and external environment
Psychology
Scientific method
requires that psychological conclusions be based on evidence collected according to the principles of this method (consists of a set of orderly steps used to analyze and solve problems)
requires that psychological conclusions be based on evidence collected according to the principles of this method (consists of a set of orderly steps used to analyze and solve problems)
Scientific method
Behaviour
means by which organisms adjust to their environment…it is ACTION
means by which organisms adjust to their environment…it is ACTION
Behaviour
Mental
those cognitive processes that individuals use to influence their action
those cognitive processes that individuals use to influence their action
Mental
Goals of Psychology
Describe, Explain, Predict and Control what happens
Metaphysical claims
Assertation about the world that is not testable
Assertation about the world that is not testable
Metaphysical claims
Pseudoscience
set of claims that seems scientific but isn’t
set of claims that seems scientific but isn’t
Pseudoscience
Confirmation bias
Tendency to seek out evidence that supports our hypotheses and deny, dismiss or distort evidence that contradicts them
Tendency to seek out evidence that supports our hypotheses and deny, dismiss or distort evidence that contradicts them
Confirmation bias
Tendency to stick to our initial beliefs even when evidence contradicts them
Belief perseverance
Belief perseverance
Tendency to stick to our initial beliefs even when evidence contradicts them
Tendency to perceive meaningful connections among unrelated phenomena.
Apophenia
Apophenia
Tendency to perceive meaningful connections among unrelated phenomena.
Tendency to perceive meaningful images in meaningless visual stimuli.
Pareidolia
Pareidolia
Tendency to perceive meaningful images in meaningless visual stimuli.
Emotional reasoning fallacy
Error of using our emotions as guides for evaluating the validity of a claim.
Error of using our emotions as guides for evaluating the validity of a claim.
Emotional reasoning fallacy
Bandwagon fallacy
Error of assuming that a claim is correct just because many people believe it
Error of assuming that a claim is correct just because many people believe it
Bandwagon fallacy
Either-or fallacy
Error of framing a question as though we can answer it in only one of two extreme ways
Error of framing a question as though we can answer it in only one of two extreme ways
Either-or fallacy
Not me fallacy
Error of believing we are immune from errors (in thinking) that afflict other people
Error of believing we are immune from errors (in thinking) that afflict other people
Not me fallacy
Appeal to authority fallacy
Error of accepting a claim merely because an authority figure endorses it
Error of accepting a claim merely because an authority figure endorses it
Appeal to authority fallacy
Genetic fallacy
Error of confusing the correctness of a belief with its origins or genesis
Ex: the belief was influenced by the time period, therefore cannot be considered valid
Error of confusing the correctness of a belief with its origins or genesis
Ex: the belief was influenced by the time period, therefore cannot be considered valid
Genetic fallacy
Argument from antiquity fallacy
Error of assuming that a belief must be valid just because it’s been around for a long time
Error of assuming that a belief must be valid just because it’s been around for a long time
Argument from antiquity fallacy
Argument from adverse consequences fallacy
Error of confusing the validity of an idea with its potential real-world consequences
Error of confusing the validity of an idea with its potential real-world consequences
Argument from adverse consequences fallacy
Appeal to ignorance fallacy
Error of assuming that a claim must be true because no one has shown it to be false
Error of assuming that a claim must be true because no one has shown it to be false
Appeal to ignorance fallacy
Naturalistic fallacy
Error of inferring a moral judgement from a scientific fact
Error of inferring a moral judgement from a scientific fact
Naturalistic fallacy
Hasty generalization fallacy
Error of drawing a conclusion on the basis of insufficient evidence
Error of drawing a conclusion on the basis of insufficient evidence
Hasty generalization fallacy
Circular reasoning fallacy
Error of basing a claim on the same claim reworded in slightly different terms
Error of basing a claim on the same claim reworded in slightly different terms
Circular reasoning fallacy
Scientific skepticism
approach of evaluating all claims with an open mind but insisting on persuasive evidence before accepting them
approach of evaluating all claims with an open mind but insisting on persuasive evidence before accepting them
Scientific skepticism
Critical Thinking
set of skills for evaluating all claims in an open-minded and careful fashion
set of skills for evaluating all claims in an open-minded and careful fashion
Critical Thinking
Six principles of scientific thinking
- Ruling out rival hypotheses
- Correlation vs. Causation
- Falsifiability
- Replicability
- Extraordinary claims
- Occam’s Razor
Ruling out rival hypotheses
findings consistent with several hypotheses require additional research to eliminate these hypotheses.
findings consistent with several hypotheses require additional research to eliminate these hypotheses.
Ruling out rival hypotheses
Correlation vs. causation
a phrase used in statistics to emphasize that two things are associated with each other doesn’t mean that one causes the other.
a phrase used in statistics to emphasize that two things are associated with each other doesn’t mean that one causes the other.
Correlation vs. causation
Falsifiability
claims must be capable of being disproved.
claims must be capable of being disproved.
Falsifiability
Replicability
a finding must be capable of being duplicated by independent researchers following the same “recipe”/“formula”.
a finding must be capable of being duplicated by independent researchers following the same “recipe”/“formula”.
Replicability
Extraordinary claims
the more a claim contradicts what we already know, the more persuasive the evidence must be before we should accept it.
the more a claim contradicts what we already know, the more persuasive the evidence must be before we should accept it.
Extraordinary claims
Occam’s razor
if two hypotheses explain a phenomenon equally well, we should generally select the simpler one.
if two hypotheses explain a phenomenon equally well, we should generally select the simpler one.
Occam’s razor
Who is the founder of Structuralism?
Wilhelm Wundt and his assistant, Edward Titchener.
Wilhelm Wundt and his assistant, Edward Titchener.
Who is the founder of Structuralism?
Wilhelm Wundt
Opened the Institute for Experimental Psychology at the University of Leipzig in Germany in 1879. This was the first laboratory dedicated to psychology, and its opening is usually thought of as the beginning of modern psychology. Indeed, he is often regarded as the father of psychology. His assistant: Edward Titchener.
Opened the Institute for Experimental Psychology at the University of Leipzig in Germany in 1879. This was the first laboratory dedicated to psychology, and its opening is usually thought of as the beginning of modern psychology. Indeed, he is often regarded as the father of psychology. His assistant: Edward Titchener.
Wilhelm Wundt
A theory of consciousness developed by Wilhelm Wundt and his mentee Edward Bradford Titchener. The “What”. Seeks to analyze the adult mind (the total sum of experience from birth to the present) in terms of the simplest definable components and then to find how these components fit together to form more complex experiences as well as how they correlated to physical events.
Structuralism
Structuralism
A theory of consciousness developed by Wilhelm Wundt and his mentee Edward Bradford Titchener. The “What”. Seeks to analyze the adult mind (the total sum of experience from birth to the present) in terms of the simplest definable components and then to find how these components fit together to form more complex experiences as well as how they correlated to physical events.
Issues of Structuralism? (3)
a. reductionistic (it reduced all complex human experience to simple sensations);
b. elemental (it sought to combine parts, or elements, into a whole rather than study complex, or whole, behaviours directly); and
c. mentalistic (it studied only verbal reports of human conscious awareness, ignoring the study of individuals who could not describe their introspections, including animals, children and the mentally disturbed)
Gestalt psychology
________ psychology tries to understand the laws of our ability to acquire and maintain meaningful perceptions in an apparently chaotic world. Founder: Max Wertheimer
________ psychology tries to understand the laws of our ability to acquire and maintain meaningful perceptions in an apparently chaotic world. Founder: Max Wertheimer
Gestalt psychology
Who founded Gestalt psychology?
Max Wetheimer
Max Wetheimer
Who founded Gestalt psychology?
Functionalism
Mental states (beliefs, desires, being in pain, etc.) are constituted solely by their functional role – that is, they have causal relations to other mental states, numerous sensory inputs, and behavioral outputs. Founder: William James.
Mental states (beliefs, desires, being in pain, etc.) are constituted solely by their functional role – that is, they have causal relations to other mental states, numerous sensory inputs, and behavioral outputs. Founder: John Dewey
Functionalism
John Dewey
Who is the founder of Functionalism?
Who is the founder of Functionalism?
John Dewey (focus on education)
William James
Founder of American Psychology
Founder of American Psychology
William James
It assumes that the behavior of a human or an animal is a consequence of that individual’s history, including especially reinforcement and punishment, together with the individual’s current motivational state and controlling stimuli. (focus primarily on environmental factors). Founder: John B. Watson
Behaviourism
Behaviourism
It assumes that the behavior of a human or an animal is a consequence of that individual’s history, including especially reinforcement and punishment, together with the individual’s current motivational state and controlling stimuli. (focus primarily on environmental factors). Founder: John B. Watson
“Little Albert” experiment
Conditioning babies with fear (Watson)
Conditioning babies with fear (Watson)
“Little Albert” experiment
B.F. Skinner
Positive/Negative reinforcement & positive/negative punishment are theories on behaviour of this psychologist
Humanistic perspective
holistic psychological model that emphasizes an individual’s phenomenal world and inherent capacity for making rational choices and developing to his/her maximum potential
holistic psychological model that emphasizes an individual’s phenomenal world and inherent capacity for making rational choices and developing to his/her maximum potential
Humanistic perspective
Carl Rogers
Fully functioning person; unconditional positive regard; conditions of worth
Fully functioning person; unconditional positive regard; conditions of worth
Carl Rogers
Abraham Maslow
coined the term self-actualization (an individual’s drive toward the fullest development of his or her potential
coined the term self-actualization (an individual’s drive toward the fullest development of his or her potential
Abraham Maslow
Cognitive perspective
the perspective on psychology that stresses human thought and the processes of knowing, such as attending, thinking, remembering, expecting, solving problems, fantasizing, and consciousness
the perspective on psychology that stresses human thought and the processes of knowing, such as attending, thinking, remembering, expecting, solving problems, fantasizing, and consciousness
Cognitive perspective
Biological Perspective
strives to identify causes of behaviour by focusing on the functioning of genes, the brain, the nervous system, and the endocrine system
strives to identify causes of behaviour by focusing on the functioning of genes, the brain, the nervous system, and the endocrine system
Biological Perspective
Evolutionary Perspective
stresses the importance of behavioural and mental adaptiveness, based on the assumption that mental capabilities evolved over millions of years to serve particular adaptive purposes
stresses the importance of behavioural and mental adaptiveness, based on the assumption that mental capabilities evolved over millions of years to serve particular adaptive purposes
Evolutionary Perspective
Sociocultural Perspective
focuses on cross-cultural differences in the causes and consequences of behaviour
focuses on cross-cultural differences in the causes and consequences of behaviour
Sociocultural Perspective
Existential Psychology
concerned with the meaningless and alienation from modern life (leads to apathy, fear, and other psychological problems); Rollo May and “lost souls”
concerned with the meaningless and alienation from modern life (leads to apathy, fear, and other psychological problems); Rollo May and “lost souls”
Existential Psychology
Great debates in psychology
Nature VS Nurture; Free-will VS determinism
Determinism
the belief that all events (physical, mental, or behavioural) are determined by specific causal factors
the belief that all events (physical, mental, or behavioural) are determined by specific causal factors
Determinism
An error in data collection or data reporting that is due to the personal motives and expectations of the viewer
Observer Bias
Observer Bias
An error in data collection or data reporting that is due to the personal motives and expectations of the viewer
Standardization
Means using uniform procedures in all phases of the research process (i.e., all participants should experience the same procedure, and other researchers should be able to replicate the procedure exactly)
Means using uniform procedures in all phases of the research process (i.e., all participants should experience the same procedure, and other researchers should be able to replicate the procedure exactly)
Standardization
a variable of condition in terms of its measurement, operation, or procedure used to determine its existence in the research setting
Operational definition
Operational definition
a variable of condition in terms of its measurement, operation, or procedure used to determine its existence in the research setting
Expectancy effects
occur when a researcher subtly communicates to the participant the results that he or she expects
occur when a researcher subtly communicates to the participant the results that he or she expects
Expectancy effects
participants are randomly assigned to experimental group(s) or control group(s)
Between-subjects designs
Between-subjects designs
participants are randomly assigned to experimental group(s) or control group(s)
Within-subjects designs
each participant serves as his or her own control group (exposed to both control and experimental conditions)
each participant serves as his or her own control group (exposed to both control and experimental conditions)
Within-subjects designs
Correlation coefficient
represented by “r” (can vary between -1.0 and +1.0: 0 (zero) means no relationship exists)
Positive correlation
as one variable increases so does the other
as one variable increases so does the other
Positive correlation
Negative correlation
as one variable decreases the other increases
as one variable decreases the other increases
Negative correlation
researcher sets up a lab situation that evokes the behaviour of interest so that every participant has an equal opportunity to display the response
Structured observation
Structured observation
researcher sets up a lab situation that evokes the behaviour of interest so that every participant has an equal opportunity to display the response
ethnography
a descriptive, qualitative technique directed toward understanding a culture or a distinct social group through participant observation [researcher spends time in the community participating in daily life]
Neuroscience
interdisciplinary field studying how biological processes relate to behavioural and mental processes
interdisciplinary field studying how biological processes relate to behavioural and mental processes
Neuroscience
Biopsychology or Biological Psychology
scientific study of the biology of behaviour and mental processes
Neuron
cell of the nervous system responsible for receiving and transmitting electrochemical information
Types of neurons
three types: sensory, motor and inter-neurons
neurons are held in place and supported by ___________ cells that surround neurons, perform cleanup tasks, insulate one neuron from another so that their neural messages are not scrambled (communication function)
Glial cells (“glue”) [glia/neuroglia]
Glial cells (“glue”) [glia/neuroglia]
neurons are held in place and supported by ___________ cells that surround neurons, perform cleanup tasks, insulate one neuron from another so that their neural messages are not scrambled (communication function)
Dendrites (“little tree”)
receive electrochemical information and transmit to cell body
receive electrochemical information and transmit to cell body
Dendrites (“little tree”)
Cell body (“soma”)
accepts incoming messages; if enough stimulation the soma will pass the message on to the axon
Contains nucleus where proteins are manufactured; damage to this part of the neuron is fatal
accepts incoming messages; if enough stimulation the soma will pass the message on to the axon
Contains nucleus where proteins are manufactured; damage to this part of the neuron is fatal
Cell body (“soma”)
Axon (“axle”)
similar to a miniature cable, it carries information away from the cell body
similar to a miniature cable, it carries information away from the cell body
Axon (“axle”)
Nodes of Ranvier
gaps (approximately 1 micrometer wide) formed between myelin sheath cells along the axons which helps the conduction of nerve impulses
Action potentials occur at these gaps in myelinated neurons
gaps (approximately 1 micrometer wide) formed between myelin sheath cells along the axons which helps the conduction of nerve impulses
Action potentials occur at these gaps in myelinated neurons
Nodes of Ranvier
Myelin sheath
white, fatty coating around the axons of some neurons
helps insulate and speed neural impulses
since fat serves as a good insulator, speeds the rate of transmission of an electrical impulse along the axon
white, fatty coating around the axons of some neurons
helps insulate and speed neural impulses
since fat serves as a good insulator, speeds the rate of transmission of an electrical impulse along the axon
Myelin sheath
How fast does a neural impulse travel?
more slowly than electricity through a wire (97% speed of light - 300 million metres per second)
10 metres per second (non-myelinated)
100 metres per second (myelinated) [This rapid rate of conduction is called saltatory conduction.]
Myelinated axons are rare in the autonomic nervous system (ANS)
saltatory conduction
100 metres per second
Action Potential
Electrical impulse that travels down the axon triggering the release of neurotransmitters.
When _______________ reaches the axon terminal, it stimulates the release of neurotransmitter molecules into the synaptic gap
Refactory period
a period immediately following stimulation during which a nerve or muscle is unresponsive to further stimulation.
Resting potential
electrical change difference across the neuronal membrane when the neuron is not being stimulated or inhibited
electrical change difference across the neuronal membrane when the neuron is not being stimulated or inhibited
Resting potential
Threshold
membrane potential necessary to trigger an action potential
membrane potential necessary to trigger an action potential
Threshold
Absolute refractory period
time during which another action potential is impossible; limits maximal firing rate
Near the end of the axon, it branches out and at the tip of each branch are ____________
Terminal buttons
Neurotransmitters
chemicals released by neurons that affect other neurons; some excite and some inhibit
produced from materials in the blood (originally derived from foods)
some regulate actions of glands and muscles
some promote sleep or stimulate mental and physical alertness
some affect learning and memory
some affect motivation, emotions, and psychological disorders (e.g., schizophrenia and depression)
Glutamate
Excites; related to enhanced learning and memory; may contribute to schizophrenia and other mental disorders
GABA (gamma aminobutyric acid)
Inhibits; inhibits so most anti-anxiety medications bind to _______ receptors; critical roles in learning, memory and sleep
Acetylcholine (ACh)
Roles in arousal, selective attention, REM sleep, memory, emotion, muscle action
Implicated in Alzheimer’s Disease (Aricept boosts levels of Acetylcholine)
Used in insecticides
Roles in arousal, selective attention, REM sleep, memory, emotion, muscle action
Implicated in Alzheimer’s Disease (Aricept boosts levels of Acetylcholine)
Used in insecticides
Acetylcholine (ACh)
Excites; related to enhanced learning and memory; may contribute to schizophrenia and other mental disorders
Glutamate