Learning - Famous people/experiments Flashcards
John B. Watson
Behaviorism: created the view that psychology should only study an observable behavior without reference to mental processes; had help from Pavlov
- Little albert experiment
The Little Albert Experiment
Watson and Rayner classically conditioned 11 month old Albert to be frightened of white rats
- Ethical concerns
- This CR is generalized to other furry animals. However, he did not get scared of a big black lab (discrimination) because it isn’t furry.
Ivan Pavlov
- classical conditioning
- dog salvating experiment
Dog salvating experiment
NS - ringing of bell, US - dog food, UR - salvation from the dog, CS - ringing of bell, CR - salivating to the sound of the bell (CS)
Shepherd Seigel
- Rat drug experiment
Rat drug experiment
1.) rats developed tolerance to increasing amounts of heroine
2.)were injected with a dose of almost twice as much heroin as they had become used to getting
3.) Rats that were injected with the overdose of heroine (experimental group) in the same setting they had received heroin before were 2 times as likely to survive as were rats that were injected in a different setting —–> rats in the different setting mostly died
B.F. Skinner
Operant conditioning: type of learning that associates certain behavior with certain consequences; VOLUNTARY BEHAVIOR
Skinner box
makes an environment that you can control completely; many rats are used in these experiments
Edward Thorndike
“Law of effect”
“Puzzle Box”
Thorndike puzzle box
- First trials in box…
Cat was inside of puzzle box, it tried to scratch at bars, push at ceiling, dig at floor, howl …finally pressed lever - After many trials in box…
Pressed lever immediately
John Garcia
“Rat Taste Aversion” Experiment
“Rat Taste Aversion” Experiment
Exposed rats to a specific taste, sight, or sound (CS) followed by radiation or drugs (US) that caused nausea and vomiting hours after exposed to CS
Rats developed an avoidance to the taste of flavored water after getting sick hours after the initial exposure to the flavored water
Only had to happen once in order for rats to develop a taste aversion
Findings of rat taste aversion experiment
Violated normal classical conditioning in which the US must immediately follow the CS; the drug was given hours after a specific taste was presented
- Supports natural selection
Rescorla and Wagner
“Shocking rats” Experiment
“Shocking rats” Experiment
Shocking rats anytime a tone was heard
Group 1 found the tone to be reliable predictor of the shock as a result their heart rates increased every time they heard it
Group 2 experienced 20 random shocks with no tone in addition to the original 20 shocks with a tone; they had a much smaller fear response to the tone because it was not a reliable predictor of the shock