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What is Learning??? - a relatively permanent change in behavior that results from experience. Demonstration of Learning. Classical Conditioning. Neutral stimulus is paired with a stimulus that elicits a reflex (response) until the neutral response alone elicits a similar response.
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What is Learning???- a relatively permanent change in behavior that results from experience.
Classical Conditioning • Neutral stimulus is paired with a stimulus that elicits a reflex (response) until the neutral response alone elicits a similar response. • UCS---------UCR (meat powder) (salivation) CS---------- CR (buzzer) (salivation)
Words to Know • Generalization- in conditioned learning, when 2 or more stimuli are similar, the response to them is the same (i.e.- fire alarm and dismissal bell • Discrimination- in conditioned learning, the ability to recognize the differences between 2 similar stimuli • Extinction- the weakening of the process after the UCS has been removed • Spontaneous Recovery- the revival of an extinguished behavior after a period of nonresponding • Reflex- automatic reaction to a stimulus
Words to know (continued) • Acquisition- process through which a CS begins to produce a CR (i.e..- infant’s fear of doctors (needles). • Intensity-increase leads to a strengthening of a CR and speed (meat powder to meat) • Relevance- saccharin-flavored water • Biological Predisposition- snakes vs. stereos • Timing- longer the delay, weaker the CR; optimal- 1.5 seconds exception- taste
Taste Aversion Studies • Sheep Study- lithium chloride • Rats and radiation- not time dependent • Ice cream Study- cancer patients