Psychology Flashcards
(413 cards)
What are the forms of Non associative learning?
- Habituation - repeated stimulation leads to a reduction in response over time
- Sensitisation - an increase in response to a stimulus as a function of repeated presentations of that stimulus
- Pseudoconditioning (cross-sensitisation) - e emergence of a response to a previously neutral
stimulus simply as a result of exposures to a different but powerful stimulus.
What are the forms of Associative learning?
- classical conditioning
- Operant conditioning
- Social learning theory
How is classical conditioning produced?
By repeatedly pairing a neutral conditioned stimulus (CS e.g. bell) with an unconditioned stimulus (UCS e.g. food) that naturally evokes an unconditioned response (UCR e.g. salivation).
Eventually the neutral stimulus alone eventually evokes the desired response (salivation –
now called conditioned response, CR).
Who first demonstrated clasdical conditioning?
Pavlov first demonstrated this paradigm in dogs.
The development of the association between the CS and the UCR resulting in a CR is called?
acquisition (for animals this takes around 3 and 15 pairings)
Delayed or forward conditioning.
CS (bell) presented before UCS (food); the CS+ UCS pairing continued till UCR (saliva) appears
Backward conditioning.
UCS (food) presented before CS (bell) – not useful in
animals; used in advertising
Simultaneous conditioning.
UCS + CS presented together
Trace conditioning
CS presented and removed before UCS presented –
conditioning depends on memory trace.
*A delay of less than 0.5ms is proposed to be the optimum for trace conditioning
What is Higher-order conditioning?
the use of an already conditioned stimulus CS1 as UCS for the next level of conditioning and eliciting a CR for another stimulus CS2.
What is stimulus generalisation?
the ‘spread’ of associative learning from one stimulus to another e.g. By exposing him to loud frightening noise whenever he was shown a white rat, eventually Albert became fearful of the white rat, even when he heard no loud noise. A similar fear response was seen when any furry white object was shown to Albert.
What is discrimination?
learned responses are made only to specific stimuli and not to other similar stimuli e.g. a child may be afraid of dogs but not all four-legged animals
What is extinction?
reduction/disappearance of a learned response when the UCS – CS pairing is not available anymore
What is Spontaneous recovery?
refers to regaining a previously extinguished learned response after a period of time.
What is Counter conditioning?
a form of classical conditioning where a previously conditioned response is replaced by a new response that may be more desirable. Utilised in behavioural therapy - systematic desensitisation, aversion therapy
What is the principle of operant conditioning?
An organism learns an appropriate behaviour after many trials because the right behaviour is followed by
appropriate (desirable) consequence.
What is reinforcement?
A conditioning that leads to increase in the frequency of behaviour following learning
What is a:
- Positive Reinforcer
- Negative Reinforcer
- Primary Reinforcer
- Secondary Reinforcer
- Food for pressing a lever (given)
- Ceasing of electric shock on pressing a lever (taken away)
- Stimulus affecting biological needs (such as food)
- Stimulus reinforcing behaviour associated with primary reinforcers (money, praise)
*Both positive and negative reinforcement increase the desired response.
What is punishment?
A conditioning that leads to decrease in the frequency of behaviour following learning
What is a:
- Positive Punishment
- Negative Punishment
- Points on your driving license for speeding (given)
2. A monetary fine from a parking ticket (taken away)
Continuous (aka contingency reinforcement) reinforcement schedule
Reinforcement every time the positive response occurs - e.g. food pellet every time a rat presses a lever in an experiment
Partial reinforcement schedule
Only some of the positive responses result in positive reinforcement – the reinforcement is determined by number of responses (ratio) or time (interval)
Fixed Interval reinforcement schedule
Reward occurs after a specific period of time regardless of number of responses e.g. a monthly salary irrespective of your level of performance!
Variable Interval reinforcement schedule
Reward occurs after a variable (unpredictable) period of time, regardless of the number of responses e.g. an angler catching a fish - the first may be after 10 minutes, the next after 45, then 5 minutes etc.