behaviourist approach Flashcards
3 main assumptions
1) we are born as a blank slate (tabula rasa) behaviour is learned from our environment, nothing is innate
2) there is little difference between the learning in humans and animals
3) behaviourism focuses on observable behaviour instead of internal events as it can be objectively and scientifically measured
how do behaviourists believe newborns are born?
completely neutral, with only the most basic of responses (crying, pain, hunger etc) and will be moulded by the environment
why was behaviourism developed?
psychologists argued that introspection & its subjectivity led to a lack of general principles & made it unscientific
definition of classical conditioning
learning through association - an existing involuntary reflex is associated with a new stimulus
definition of operant conditioning
learning through the consequences of our actions
positive reinforcement
when a behaviour is followed by a desirable consequence (reward) and is more likely to be repeated
negative reinforcement
a behaviour results in an unpleasant consequence being removed to bring an organism back to a pleasant state, results in the behaviour being more likely to be repeated
punishment
a behaviour is followed by an unpleasant consequence and is then less likely to be repeated
how was classical conditioning first demonstrated
pavlov
(he observed that his dogs salivated when his assistants opened the doors to their cages and inferred that they must have learned to associate the opening of the doors with food, he tested this by associating the ringing of a bell with the food so that the dogs would salivate when they heard the bell)
pavlov’s dog experiment
-the dog would be strapped in a harness with an apparatus that allowed precise measurement of the amount of saliva it produced
-a bell would be rung and the amount of saliva measured
-food would be presented and the amount of saliva measured
-then the bell and food would be presented at the same time and the amount of saliva measured.
-this would be repeated then the bell would be rung without presentation of the food, and the amount of saliva would be measured to test the strength of the conditioned response that had been learned
neutral stimulus (NS)
an event that doesn’t produce a response
unconditioned stimulus (UCS)
an event that produces an unlearned reflex response
conditioned stimulus (CS)
an event that produces a learned response
unconditioned response (UCR)
an reflex behaviour that an organism produces when exposed to an unconditioned stimulus
conditioned response (CR)
a learned behaviour that an
organism produces when exposed to a conditioned stimulus
process of classical conditioning- pavlovs dogs
-dog is presented with a bell (NS) which produces no response
-dog is presented with food (UCS) , which produces salivation (UCR)
-dog is presented with the bell (NS) and food ( UCS) at the same time, producing salivation (UCR)
-dog now salivates (CR) when only the bell is present (CS)
identify NS, UCS, UCR, CS, CR:
sarah has always felt calm and relaxed when listening to classical music. lately, she’s been lighting a candle just before she listens to classical music. now she doesn’t even need the classical music to feel relaxed, as this happens as soon as she lights the candle.
UCS (music) → UCR (relaxation)
NS (candle) → no response
NS (candle) + UCS (music) → UCR (relaxation)
CS (candle) → CR (relaxation)