ch. 7 cognition and language. 1.building blocks of thought a.language a flexible system of symbols...
TRANSCRIPT
Ch. 7
Cognition and Language
1. Building Blocks of Thought A. Language
A flexible system of symbols that enables us to communicate our ideas, thoughts, and feelings
Nonhumans communicate primarily though signs Human language is semantic, or meaningful. It is also characterized by displacement
Not limited to the here-and-now
When we wish to communicate an idea, we start with a thought, then choose words and phrases that will express the idea, and produce the speech sounds of those words and phrases. To understand speech, the task is reversed.
B. Structure of Language Phonemes - basic sounds (ph, t) Morphemes - smallest meaning unit (words, prefixes) Surface structure
Phrases of sentence Deep structure
Underlying meaning of a sentence Grammar -rules of how sounds combine
C. Images Mental pictures of perceptions
D. Concepts Prototypes
Model with most typical features
2. Problem Solving A. Algorithms and Heuristics
Algorithms - formula that guarantees solution (math/science formulas)
Heuristic- formula (rule of thumb) but does not guarantee solution
Hill climbing Each step is closer to goal
Subgoals Important because manageable
B. Experience and Expertise C. Obstacles to Solving Problems
Mental sets Tendency to see things a certain way Match Problem
Functional fixedness Only see a limited number of uses Elevator Problem – Write Down Your Solution Elevator Solution
D. Becoming Better at Problem Solving Eliminate poor choices
Evaluate by criteria and discard Visualize a solution
Diagram
E. Creative Problem Solving Convergent thinking (one solution) Divergent thinking (creative, flexible) Brainstorming
Produces many ideas Very popular in business Do NOT judge ideas as generated
The creative process Produce something new and unique that is
socially valued
3. Decision Making A. Weighing Pros and Cons
Compensatory model Click here to view the Decision Making table
B. Decision-Making Heuristic Representativeness heuristic
Compare to stereotypical model Availability heuristic
Based on most easily obtained info Confirmation bias
Biased in favor of our belief Prejudice or self-esteem problems
C. Framing See the problem in a new context
D. Decision Under Pressure Hindsight bias Counter factual thinking
4. Language, Thought, and Culture
A. Language and Cognition Linguistic Relativity Hypothesis
Patterns of thinking determined by specific language
Figurative Language Creative
Simile -“like a lion in combat” Irony - meaning the opposite “That was a great
test”
B. Culture and Cognition All known cultures use categories to form concepts Culture shapes
What information is included in a category How categories are shaped by experience
5. Nonhuman Thought and Language
Animal cognition Animals can form concepts Apes have demonstrated sophisticated problem-
solving skills Chimpanzees and orangutans show signs of self-
awareness The question of cognition
Chimpanzees have been taught to use American Sign Language
Chimpanzees have been observed using telegraphic speech (two-word combinations)