Ivan Pavlov · 1897
Pavlov's Dog
Discovered that dogs "predict" food. Bells making dogs salivate won him a Nobel Prize.
Methodology
Original Goal:
Digestion research (won 1904 Nobel)
Discovery:
• Dogs salivated before food arrived (at footsteps)
️ Apparatus:
• Tube in cheek to measure saliva
Conditioning:
• Metronome → Meat powder (Repeated)
• Test: Metronome only → Saliva?
Findings
Results:
• Before: Metronome → 0 drops
• After: Metronome → Salivation
Concepts:
• Extinction: Sound without food → Stops
• Generalization: Similar sounds work
• Discrimination: Only specific sound works
Significance
Nobel Prize
Daily Life:
• Adverts (Model + Product)
• Hospital smell anxiety
• Phone vibration phantom syndrome