Conditioning Flashcards
(26 cards)
Learning
Relatively permanent changes in behaviour resulting from practice or experience
- can be unlearned
Classical conditioning
Learning by association
reflexive learning
depends on reflex responses
- Unconditioned stimulus causes unconditioned response
- Later on, a Neutral stimulus becomes a conditioned stimulus and then causes a conditioned response, which = the unconditioned response
Reinforcement
Any event that increases the likelihood that a response or behaviour will occur again
Response
Any identifiable behaviour, external or internal, that is elicited by a stimilus
Stimulus
Any object or event that elicits a response
Antecedent
An event that comes before a response
Consequence
The effect of the response
Acquisition process
the process of acquiring knowledge
Acquisition phase
period of time between presentation of a stimulus or recieving re-inforcement
extinction
gradual decrease in strength or frequency of a conditioned response
Spontaneous recovery
re-appearance of a conditioned response to the conditioned stimulus after a period of time of apparent extinction
Pavlov’s Dogs
- 1905
- Ivan Pavlov
- A Russian Physiologist
- Discovered classical conditioning by accident
- Found that dogs become accostomed to things
- Food = Unconditioned stimulus
- Saliva = Unconditioned response
Over time, hearing a bell, a NS, becomes a CS and causes salivation, a UCR becoming a CR
Operant Conditioning
Learning process
Learning from the consequences of behaviour
- the stimulus is the cue, causes a response which causes a consequence
Reinforcement
increases the response
punishment
decreases the response
Little Albert
John B. Watson 1920 Albert was conditioned to fear rats through classical conditioning N.S = Animals UCS = Hammer CR= Crying CS= Animals UCR= Crying
- Albert was not afraid of animals, when he reached for a rat, they made a loud noise and this was repeated 6 times,
- Albert associated white noise with white rat, albert was now afraid of white rate and anything similar
Skinner Box
1930’s
Fed pigeons less so that they are always hungry
Put pigeons in a box
Pigeons will peck a lever / button
Sometimes be rewarded with food
Discovered that the reward of food determined the times pigeons pecked buttons
Pecking -> food = pos. reinforcement
Systematic Desensitation
Decreasing your level of anxiety or fear very gently and gradually
Reinforcement
Any stimulus, which, when delivered to a subject, increases the probability that a subject will emit a response
Positive Reinforcement
Increases probability that a behaviour will occur and giving something
Negative Reinforcement
Taking away something when the desired behaviour is emitted
Phobia
An intense and irrational fear or aversion to an object, situation or thing, persists over time
Schedules of Reinforcement
Used to decrease the probability that a response pattern in a subject will extinguish
Bandura
Albert Bandura
1960’s
Preschooled children watched an adult attack a blow up doll, after witnessing this, aggression occurred in the children