Lecture 7 - classical conditioning Flashcards
What is learning?
To acquire skill or knowledge
Thorndike (1974-1949)
Against anthropomorphising and anecdotes
Believed that animals learn through stimulus-response associations
Thorndike experiments
Cats in puzzle boxes, food reward on escaping
- -> through process of trial and error, cats became much faster
- -> food reward reinforces connection between stimulus and response
LAW OF EFFECT
Pavlov (1849-1936)
Stimulus-stimulus learning
Tolman (1886-1959)
Cognitive approach
-behaviour is goal directed and purposive
What is ethology?
A branch of zoology
Tinbergen and Perdeck (1950)
Releasing stimulus for pecking is the red spot on the beak of the parent’s bill - only pecks for red spot, not anything else
Lorenz
Imprinting, learning of instinctive behaviours
What is habituation?
A decrease in responding following repeated exposure
-occurs in the S-R system
What is sensitisation?
An increase in responding following repeated exposure
-Occurs in state systems, eg, pain and arousal
When is sensitisation most likely?
Tends to occur towards intense, potentially harmful stimuli
Extinction
When conditioned response no longer follows conditioned stimulus
Watson and Reyner (1920)
Little Albert, white rat associations