CLASSICAL CONDITIONING

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CLASSICALCONDITIONING

• It has been in your lives from the beginning!!!
• http//www.worthpublishers.com/myers5e/content/psy
  chsim/

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Introduction

• Philosophers beginning with Aristotle have
  recognized that learning is largely based on
  forming associations, or links, between events.
  The process by which these links are
  established, modified, and broken was first
  studied scientifically by the Russian
  physiologist Ivan Pavlov.

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Ivan Pavlov

• A Russian scientist who accidentally discovered
  this process of learning.

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So what is it?

• Classical Conditioning
• Is a learning procedure where associations are
  made between a natural stimulus and a LEARNED,
  (neutral) stimulus.

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Neutral Stimulus (ns)

• A stimulus that does not initially elicit
  (provoke) a response.

• The bell

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Unconditioned Stimulus (ucs)

• An event that leads to a certain predictable
  response without previous training

• Food (kibble)

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Unconditioned Response (ucr)

• A reaction to the ucs that occurs automatically
  and naturally. (a reflex)

• Salivating

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Conditioned Stimulus (cs)

• An ordinarily neutral event that AFTER TRAINING
  leads to a desired response.

• The Bell (cs) -gt Salivating (cr)

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Conditioned Response (cr)

• The conditioned response is LEARNED

• Salivating

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Things to Remember

• Achieving a classically conditioned response
  generally occurs gradually
• The more frequently the (cs)-Tuning fork- is
  paired with the (ucs)-food- the more often the
  (cs)-tuning fork- brought out the (cr)-
  salivating-

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Things to remember cont

• Which means
• Now spike SALIVATES (cr) at the sound of the
  TUNING FORK (cs) even though there is no FOOD
  (ucs) present
• Remember the timing between the (cs)-(tuning
  fork) and the (ucs)-(food) is important!!! (or
  else Spike wont associate the two)

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More C.C. Vocab.

• GENERALIZATION occurs when the subject responds
  to a second stimulus (with no prior training)
  that is similar to the original cs.
• Ex When Spike responds the same way to a bike
  bell as he does to the hand bell

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More C.C. vocab. cont

• DISCRIMINATION ability to respond differently to
  different stimuli.
• Ex woooohoooo Spike responds to the hand bell
  but not the bike bell.

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Last one!!!

• Extinction the cr (salivating) starts to decline
  (and even disappear) when the cs (bell) is
  presented without the ucs (food)
• Howeverthere can be a comeback the cr can
  reappear when the cs is presented without the
  ucs though not as strong (not as much saliva)