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Rosalie Alberta Rayner (September 25, 1898 – June 18, 1935) was an undergraduate psychology student, then research assistant (and later wife) of Johns Hopkins University psychology professor John B. Watson, with whom she carried out the study of a baby later known as "Little Albert." In the 1920s, she published essays and co-authored articles ...
The Little Albert experiment was an unethical study that mid-20th century psychologists interpret as evidence of classical conditioning in humans. The study is also claimed to be an example of stimulus generalization although reading the research report demonstrates that fear did not generalize by color or tactile qualities. [ 1 ]
In 1920 John B. Watson and Rosalie Rayner demonstrated such fear conditioning in the Little Albert experiment.They started with a 9-month boy called "Albert", who was unemotional but was made to cry by the loud noise (unconditioned stimulus) of a hammer striking a steel bar.
The goal of the experiment was to show how principles of, at the time recently discovered, classical conditioning could be applied to condition fear of a white rat into "Little Albert", a 9-month-old boy. Watson and Rayner conditioned "Little Albert" by clanging an iron rod when a white rat was presented. First, they presented to the boy a ...
Although John B. Watson mainly emphasized his position of methodological behaviorism throughout his career, Watson and Rosalie Rayner conducted the infamous Little Albert experiment (1920), a study in which Ivan Pavlov's theory to respondent conditioning was first applied to eliciting a fearful reflex of crying in a human infant, and this ...
1920 – John B. Watson and his assistant Rosalie Rayner conducted the Little Albert experiment, using classical conditioning to make a young boy afraid of white rats. 1921 – Sigmund Freud published Group Psychology and the Analysis of the Ego.
John B. Watson and Rosalie Rayner conduct the Little Albert experiment showing evidence of classical conditioning (1920) The Asch conformity experiments shows how group pressure can persuade an individual to conform to an obviously wrong opinion (1951) B. F. Skinner's demonstrations of operant conditioning (1930s–1960s)
1920 – John B. Watson and Rosalie Rayner conduct the Little Albert experiment. 1928 – Griffith's experiment shows that living cells can be transformed via a transforming principle, later discovered to be DNA. 1934 – Enrico Fermi splits the atom. 1935 – Lady tasting tea experiment by Ronald A. Fisher, foundational in statistical ...