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Thinking and Language

Thinking and Language. Cognition. Concepts Prototypes. Solving Problems. Dice Game Levine (1975) Theory of hypothesis testing. Solving Problems. Algorithm Step by step, logical, guarantees solution Heuristic Simple strategy, quicker, more error-prone Insight. Buddhist monk problem.

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Thinking and Language

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  1. Thinking and Language

  2. Cognition • Concepts • Prototypes

  3. Solving Problems • Dice Game • Levine (1975) Theory of hypothesis testing

  4. Solving Problems • Algorithm • Step by step, logical, guarantees solution • Heuristic • Simple strategy, quicker, more error-prone • Insight

  5. Buddhist monk problem • Exactly at sunrise one morning, a Buddhist monk set out to climb a tall mountain. The narrow path was not more than a foot or two wide, and it wound around the mountain to a beautiful, glittering temple at the mountain peak. • The monk climbed the path at varying rates of speed. He stopped many times along the way to rest and to eat the fruit he carried with him. He reached the temple just before sunset. At the temple, he fasted and meditated for several days. Then he began his journey back along the same path, starting at sunrise and walking, as before, at variable speeds with many stops along the way. However, his average speed going down the hill was greater than his average climbing speed. • Prove that there must be a spot along the path that the monk will pass on both trips at exactly the same time of day. • Source: Koestler, A. (1964). The act of creation. London: Hutchinson. Reprinted by permission of Peters, Fraser &Dunlop.

  6. Hobbits and Orcs • Three Hobbits and three Orcs arrive at a river bank, and they all wish to cross onto the other side. Fortunately, there is a boat, but unfortunately, the boat can only hold two creatures at one time. Also, there is another problem. Orcs are vicious creatures, and whenever there are more Orcs than Hobbits on one side of the river, the Orcs will immediately attack the Hobbits and eat them up. Consequently, you should be certain that you never leave more Orcs than Hobbits on any river bank. How should the problem be solved? (Note that the Orcs, though vicious, can be trusted to bring the boat back!) • Source: Greeno, J. G. (1974). Hobbits and Orcs: Acquisition of a sequential concept. Cognitive Psychology, 6, 270–272. • Reprinted by permission of Academic Press.

  7. Obstacles • Confirmation bias • Tendency to search for info that confirms ideas • Fixation • Functional fixedness

  8. Forming judgments • Representativeness heuristic • How well something fits prototype • Availability heuristic • Framing • 95% success rate • 5% failure rate • Belief perseverance

  9. Language Development

  10. Theories • Skinner – behavioral • Chomsky • “Language acquisition device” • Second language issues • Whorf • Linguistic Determinism • Language influences how we think

  11. Animals

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