Lecture 10 Flashcards
What study talks about the trade-off between private and public information?
van Bergen et al. 2004
Nine-spiked sticklebacks use both types of info
Social learning
Learning that is influenced by observation of, or interaction with, another animal or its products
Social facilitation
Probability of performing a known behaviour increases in the presence of others doing it e.g. breeding behaviour in kittiwakes
Leads to synchronisation of species-typical behaviour
Why learn from others?
- Less time-consuming
- May allow exploitation of new resources
- Less risky e.g. learning about predation risk
Example of when not to use social learning
Guppies
Laland and Williams (1998)
Naive individuals followed demonstrators along the long route even after demonstrators were removed
More lone fish used the shorter route than shoaling fish
How does opportunity to scrounge affect learning?
-When pigeons in same cage as other bird that removes stopper from tube, it scrounges from other bird rather than learning to unstopper tube itself
Palameta and Lefebvre 1985
Mechanism 1 of social learning
Location enhancement
Presence/behaviour of demonstrator draws observers attention to specific location where behaviour is then acquired through individual learning
Mechanism 2 of social learning
Stimulus enhancement
Presence/behaviour of demonstrator draws observers attention to particular object/stimulus which is then generalised
Mechanism 3 of social learning
Goal emulation
Observer attends to the movement of the object, not the behaviour of the demonstrator, then comes up with its own solution to reach the goal
Mechanism 4 of social learning
Observational conditioning
Demonstrator performs behaviour in presence of certain stimuli
Observer forms association between behaviour and stimuli
Consequently observer performs similar behaviour on encountering those stimuli
Mechanism 5 of social learning
Imitation
Observer copies the topography of the novel behaviour shown by the demonstrator
Define imitation
Observer performs same action as demonstrator as a result of having seen act performed
Action is novel
Observer matches precise form/topography of action
How to study imitation?
Bidirectional control and two-action task
Present animal with problem that can be solved in two alternative ways
Each animal witnesses one of the ways
Consider first response only to rule out individual learning
Budirectional control example
Fawcett et al., 2002
Push and pull by starlings to obtain food
Ghost condition ruled out goal emulation
Two action task example
Difference is animal changes the way it moves object e.g. beak or foot
Carter et al.
To get mealworms starlings has to push down the barrier - both beak and foot action novel
Strong evidence for imitation