4.2 Fagen et al (Elephant learning) Flashcards
Psychology being investigated
operant conditioning
positive reinforces and negative reinforcers
secondary reinforcers have to be learned, associated with primary reinforcers
punishment
Learning trunk-washing through positive reinforcement improves the psychological well-being of elephants (tuberculosis)
SPR training
What is operant conditioning?
learning through the consequences of our actions
What is a positive reinforcer?
a reward for behaviour that fulfils a biological need is known as a primary positive reinforcer. A stimulus that is associated with primary reinforcers can also be learned and is known as a secondary reinforcer
What is positive reinforcement?
a form of operant conditioning. It involves rewarding desirable behaviour to encourage it to be repeated.
What is SPR training?
secondary positive reinforcement (SPR) training
training in which a secondary reinforcer such as a sound marker is used and then followed by the administration of a primary positive reinforcer (typ[ically food)
Aim
To investigate whether free-contact, traditionally trained elephants can be trained to participate in a trunk wash by using positive reinforcement
Research Method And Design
Controlled observation
(used behavioural checklist so could be considered a structured observation)
Sample and sampling technique
5 female elephants
4 juvenile (5-7 years)
1 adult (50)
all gentle/ tame (docile) , not pregnant or taking care of a child
the mahouts had to be willing to take part
none of the elephants had previous experience with SPR
Name the primary and secondary reinforcer used in this study
Primary-
Chopped bananas
Secondary-
Short whistle blow
What were the three methods the elephants of teaching trunk washing?
- Capture: waiting for the animal to perform the behaviour naturally then ‘capturing’ it by marking it with a reward
- Lure: for non-natural behaviours, an animal is ‘lured’ into a certain body position by placing a reward in a certain place
- Shaping: after starting either capture or lure, rewards are then only given for the behaviours that are ‘best’
Name the 5 behavioural tasks and give a description
pg.135 Cambridge
Describe the procedure
pg.136 Cambridge
pg,121 Hodder
What were the measured variables?
- length of each training in minutes from the first cue to the last cue
- number of times the elephant was given a cue or ‘offer’ for behaviour
After session 10, every 5 session the elephants were tested on previously taught behaviours, 80% was the passing score
What is behavioural chaining?
a process that allows separately trained behaviours to be performed in sequence in response to cues
Results
The four juvenile elephants learned the full trunk wash in 25-35 sessions. Mean duration 12 minutes, overall training time 367 minutes
Elephant 5 failed to learn the sequence
The most difficult behaviour to learn was trunk hear, 295 offers
Least difficult blow into the bucket, 54 offers