Foundations of Psychology Flashcards
Scientific skepticism
Approach of evaluating all claims with an open mind, but insisting on persuasive evidence before accepting them
Wilhelm Wundt (1832-1920)
Considered founder of experimental psychology, “experimental introspection”. Structuralist approach. Established first University based psychology lab in 1879 (Uni of Leipzig)
Extraordinary claims
The more a claim contradicts what we already know, the more persuasive the evidence for this claim must be before we should accept it
Testability
Scientists try to test the novel predictions of their (and rival) theories in order to find out if the theory really describes the world
Occam’s Razor
If two hypotheses explain a phenomenon equally well, we should generally select the simpler one
Replicability
A finding must be capable of being duplicated by independent researchers following the same ‘recipe.’
Ruling out rival hypotheses
Findings consistent with several hypotheses require additional research to eliminate these hypotheses
Empiricism
The theory that all knowledge is based on experience derived from the senses.
(John Locke, human mind as a tabula rasa / Hume )
Rationalism
View that regards reason as the chief source and test of knowledge or any view appealing to reason as a source of knowledge or justification
Correlation vs causation
The fact that two things are associated with each other doesn’t mean that one causes the other
Phrenology
Theory contending indentations and bumps on the outer skull reflect contours of the brain. Assumed brain could be divided into smaller areas of function ‘localisation of function’ (Franz Joseph Gall)
Paul Broca & Broca’s area
Broca found injuries to areas in left cortical hemisphere lead to loss of speech production
Wernicke’s area
Damage to the posterior part of left hemisphere caused problems with language comprehension.
Fechner’s law
S = k log R Law from psychophysics quantifying the perception of change in a given stimulus. The law states that the change in a stimulus that will be just noticeable is a constant ratio of the original stimulus. S = psychological sensation k = constant R = physical stimulus of intensity
Functionalism
Psychological school of thought that was a direct outgrowth of Darwinian thinking. Focuses attention on the utility and purpose of behaviour that has been modified over years of human existence.
(William James 1842-1910)
Localisation of function
The idea that different parts of the brain are responsible for specific behaviours, or that certain functions are localised to certain areas in the brain.
(Broca & Wernicke)
Structuralism
School of psychology seeks to analyse the mind 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 correlate to physical events. To do this, psychologists employ introspection.
(Wundt and Titchener)
William James (1842-1910)
Considered founder of functionalism. Behaviour can be understood in terms of its purpose without analysing mechanisms. Theoretical, rather than experimental approach. ‘Principles of psychology’ 1890. Influenced by Darwinism
Behaviourism
Systematic investigation of how sensory information influences behaviour and how consequences of behaviour influence future behaviour
(Skinner,
Ivan Pavlov (1849-1936)
Studied function of conditioned reflexes & developed theory of classic conditioning
Edward Thorndike (1874-1949)
Studied relationship between stimulus and response. Puzzle box experiments with cats. Developed law of effect
John Watson (1878-1958)
Relationship between stimulus and response. ‘The behaviourists manifesto’ argued against introspection, emphasised objectivity, prediction and control. The environment is everything. Little Albert experiment
BF Skinner (1904-1990)
‘Radical behaviourism’ - all behaviour is determined by its consequences. Discovered the concept of the variable ratio schedule. ‘Beyond freedom and dignity’ proposed all human behaviour is a consequence of reward/reinforcement contingencies and ‘free will’ is largely non existent.