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Material Type: Notes; Professor: Waddill; Class: Psychology Of Learning And Memory; Subject: PSY Psychology; University: Murray State University; Term: Fall 2009;
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Inductive learning: Forming inferences. Not really conditioning. What we learn from induction: Concepts, Categories, and Language CONCEPT ACQUISITION When we learn concepts, (concept of food, what doggieness is etc.) how do we learn it? Is it similar to associative learning (conditioning)? Yes (Hull, 1920): its just like simple associative learning, we come to associate a particular response with a particular stimulus. People learn rules of classification without realizing it. CC is the same in that people are conditioned without realizing they are being conditioned. Ex. Hull’s Study: 6 lists of Chinese characters. Used non- Chinese speakers. Each list exemplified a character based on a particular radical (concept), which was like a shape that was also seen in each list but had other stuff added to it. Kind of like “Where’s Waldo.” Subjects were eventually able to classify very accurately but they didn’t know why. They didn’t know what rule they learned. In conditioning, you can be conditioned without realizing it. No (Bruner, 1956): It’s more complex than classical conditioning. We use other kinds of things like hypotheses, we make inferences, we test our hypotheses, and in conditioning, we don’t do that. Ex. Bruner’s Study: Did not tell his subjects that these were all organized according to a particular radical. He used 81 different cards. The stimuli on the cards varied on 4 dimensions. They varied on the shape that was in the middle of the card, by the color of the shape (3 different colors), and the number of shapes in the middle of the card, and the number of borders drawn around the edge of the card. When you combine all those combinations, you get 81 different combinations. He wanted to see how well people were able to figure out what the rule was and classify them in the right
category. Sometimes he made it really easy, sometimes more complicated. He tested them on a variety of different kinds of concepts or rules. He found that people were able to determine what were members of the category and what weren’t. He found that people would form hypotheses and test them out. Bruner said that is NOT associative learning (conditioning), because in associative learning, you are simply learning stimulus response. Yes (Gluck & Bower, 1988): said Hull was right. They looked at concept learning from a neural network model (association strengths, spreading activation). They developed mathematical learning. They said that when things are associated with a particular concept, we get a stronger relationship in that semantic network, therefore we do have a network and when one thing lights up, it lights other things up (associations). Final Answer: It depends on what kind of concept you’re studying, and how you study and the material you study. How We Study Concept Acquisition (p.340) Selection Paradigm: Subject behaves more like a scientist and can select instances to test their current hypothesis. A set of items and say this belongs to a category, this does, this doesn’t, this does etc. Subjects pick a card at random and decide which category it goes in. Subjects begin to formulate an idea of what they think the answer is. This is a lot like 20 questions. Instances- Things that illustrate the concept. (+) Non-instances- things that don’t illustrate the concept (-) Reception Paradigm: Ss encounter instances and non-instances with little control over which they encounter. Participant sits there and has to receive the info from the researcher. Have very little control over what happens. Note: More real world concept learning because we don’t have a lot of control over what we encounter. Learning Concepts: Hypothesis Testing
Causal Inference: We make assumptions about cause effect. We are trying to figure out what events lead to other events. Cause- Effect is directional. Ex. Susan is crying. Her boyfriend broke up with her. Cause-effect = Susan’s boyfriend broke up with her so she is crying. We are always trying to figure out why. If you assume there is always a cause for something, then you think you can figure out the cause and avoid it or produce. Unfortunately not everything is cause-effect. 3 categories of cues
Children often mispronounce to correction “Fis phenomenon” WR- sound is hard W for R “Wabbit” Language learning can occur without direct exposure speed of acquisition Bulk of acquisition occurs in about 3-4 yrs. Pattern of first language acquisition Single words used in meaningful ways (approx 1 year old) 2-word utterances (approx 18 mos) Telegraphic Speech: “milk all gone” “daddy bye bye” More Complex sentences emerge by 4yrs. Order unique to children acquiring