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Unformatted text preview: 1 PSY 3364 Animal Communication Nov 1, 2010 Development of Communication Fixed action patterns European ethology Development of Communication • Role of learning in development • Classical conditioning (Pavlov) American behaviorist psychology • Operant conditioning (Skinner) Classical conditioning (Pavlov) • Formation of a conditioned reflex Before conditioning During conditioning After conditioning Unconditioned stimulus (food) Unconditioned response (salivation) Unconditioned Conditioning stimulus (food) stimulus (bell) Unconditioned response (salivation) Conditioned stimulus (bell) Conditioned response (salivation) Development of Communication • Reinforcement (operant) learning (Skinner) Skinner Box Deprivation experiments • Kaspar Hauser- “wild child” • Visual cliff experiments Tre nesters (wood ducks) vs ground nester – Tree-nesters (wood ducks) vs. ground nesters • Hoarding behavior in squirrels • Bird song development (chaffinch) – Effects of captive rearing – Effects of induced deafness 2 Modes of learning • Phenotypic plasticity – Different phenotypes appear in different environmental conditions • Individual learning • Social learning Modes of learning • Single stimulus learning – Habituation – reduced response to a stimulus over time – Sensitization – increased response to a stimulus over time Food aversions • Garter snake ( Thamnophis elegans ) – Inland populations–aversion to banana slugs – Coastal populations–prefer slugs as food – Preferences shown by newborn snakes Interpreting deprivation experiments • Deprivation causes changes in behavior – But … what has the animal been deprived of ? – Learning only environmental factor Learning only environmental factor – Dichotomy of innate vs. acquired behavior? • “Genes and environment are 100% important in the development of behavior” – Donald Hebb Other examples • Tree- vs. ground-nesting ducks: visual cliff • Hoarding of nuts by squirrels • Fear of snakes in primates Development of vocal sounds • Which birds sing? What is a songbird?...
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This note was uploaded on 11/11/2010 for the course PSY PSY 3364 A taught by Professor Dr.peterassmann during the Spring '10 term at University of Texas at Dallas, Richardson.
- Spring '10
- Classical Conditioning