Thinking
Concepts
Cognition
All the mental activities associated with thinking, knowing, remembering, and communicating
Metacognition
Cognition about our cognition; keeping track of and evaluating our mental processes
Concepts
A mental grouping of similar objects, events, ideas, or people
Prototype
A mental image or best example of a category; Matching new items to a prototype provides a quick and easy method for sorting items into categories (as when comparing feathered creatures to a prototypical bird, such as a crow)
Problem Solving: Strategies and Obstacles
Algorithms
A methodical, logical rule or procedure that guarantees solving a particular problem. Contrasts with the usually speedier (but also more error-prone) use of heuristics
Heuristic
A similar thinking strategy (a mental shortcut) that often allows us to make judgements and solve problems efficiently; usually speedier but also more error-prone than an algorithm
Example: grouping letters in a long word
Insight
A sudden realization of a problem’s solution; contrasts with strategy-based solutions
Aha moment
Confirmation bias
A tendency to search for information that supports our preconceptions and to ignore or distort contradictory evidence
Wason states: “ordinary people evade facts, become inconsistent, or systematically defend themselves against the threat of new information relevant to the issue”
Fixation
In cognition, the inability to see a problem from a new perspective; an obstacle to problem solving
Mental Set
A tendency to approach a problem in one particular way, often a way that has been successful in the past
Predisposes how we think
Forming Good (and Bad) Decisions and Judgements
Intuition
An effortless, immediate, automatic feeling or thought, as contrasted with explicit, conscious reasoning
Two Quick But Risky Shortcuts
The representativeness heuristic
Judging the likelihood of events in terms or how well they seem to represent, or match, particular prototypes; may lead us to ignore other relevant information
The availability heuristic
Judging the likelihood of events based on their availability in memory; if instances come readily to mind (perhaps because of their vividness), we presume such events are common
Overconfidence
The tendency to to be more confident than correct - to overestimate the accuracy of our beliefs and judgements
Planning fallacy
Overestimating our future leisure time and income
Belief Perseverance
Clinging to one’s initial conception after the basis on which were formed has been discredited
Motivated reasoning
Using their conclusions to assess evidence rather than using evidence to draw conclusions
The Effects of Framing
Framing
The way an issue is posed; how an issue is framed can significantly affect decisions and judgements
Nudge
Framing choices in a way that encourages people to make beneficial decisions
Example:
Saving for retirement
Making moral decisions
Becoming an organ donor
Reducing alcohol consumption
Point to remember
Framing can nudge our attitudes and decisions
The Perils and Powers of Intuition
Intuition is recognition born of experience
It is implicit knowledge - what we recorded in our brains but can’t fully explain
Intuition is usually adaptive
Our learned associations surface as gut feelings, right or wrong
Intuition is huge
Unconscious, automatic influences constantly affect our judgements
The bottom line
Our two-track mind makes sweet harmony as smart, critical thinking listens to the creative whispers of our vast unseen mind and then evaluates evidence, tests conclusions, and plans for the future
Thinking Creatively
Creativity
The ability to produce new and valuable ideas
Convergent thinking
Narrowing the available problem solutions to determine the single best solution
Example: SAt
Divergent thinking
Expanding the number of possible problem solutions; creative thinking that diverges in different directions
Robert Sternberg and his colleagues believe creativity has five components
Expertise
Well-developed knowledge
Imaginative thinking skills
A venturesome, determined personality
Intrinsic motivation
A creative environment
Boost creative process
Develop your expertise
Allow time for incubation
Set aside time for the mind to roam freely
Experience other cultures and ways of thinking
Do other species share our cognitive skills?
Using concepts and Numbers
The great apes also form concepts like cat and dog
Displaying Insight
Wolfgang Kohler placed a piece of fruit outside the cage of a chimpanzee, after failed attempts, the chimpanzee had an aha moment
Transmitting Culture
Other species invent behaviors and transmit cultural patterns to their observing peers and offspring
Other Cognitive skills
Great apes, dolphins, magpies, and elephants recognize themselves in a mirror, demonstrating self-awareness
Elephants display their abilities to learn, remember, discriminate smells, empathize, cooperate, teach, and spontaneously use tools
Chimpanzees show altruism, cooperation, and group aggression.
They may purposefully kill their neighbor to gain land and they grieve over dead relatives
Language and Thought
Language
Our spoken, written, or signed words and the ways we combine them to communicate meaning
Language Structure
Phonemes
Smallest distinctive sound units in a language
As a general rule, consonant phonemes carry more information than do vowel phonemes
Morphemes
Smallest language units that carry meaning; may be a word or a part of a word
“Reader” broken down into “read” and “er” suggesting one who reads
Grammar
Language’s set of rules that enable people to communicate
In a language, a system of rules that enables us to communicate with and understand others. Semantics is the language’s set of rules for deriving meaning from sounds, and syntax is its set of rules for combining words into grammatically sensible sentences
Language Acquisition and Development
Language Acquisition: How do we learn language?
Biology and experience work together
Noam Chomsky has argued that language is an unlearned human trait, separate from other parts of human cognition
Language Development: When do we learn language?
Receptive Language
Children’s language development moves from simplicity to complexity
Ability to understand what is said to and about them
Productive Language
Ability to produce words
Babbling stage
The stage in speech development, beginning around 4 months, during which an infant spontaneously utters various sounds that are not all related to the household language
One-word stage
The stage in speech development, from about 1 to 2, during which a child speaks mostly in single words
Two-word stage
The stage in speech development, beginning about age 2, during which a child speaks mostly in two-word sentences
Telegraphic speech
The early speech stage in which a child speaks like a telegram (“go car”) using mostly nouns and verbs
Critical Periods
By age 7, those who have not been exposed to either spoken or signed language lose their ability to master any language
Language learning ability is universal
Deafness and language development
Natively deaf children who learn sign language after age 9 never learn it as well as those who learned it early in life
More than 90% of all deaf children are born to hearing parents
People who lose one channel of sensation compensate with a slight enhancement of their other sensory abilities
Living in a Silent World
Challenges of life without hearing may be greatest for children
Unable to communicate in customary ways
May struggle to coordinate their play with speaking playmates
School achievement may suffer
May feel socially excluded
Low self-confidence
The Brain and Language
Aphasia
Impairment of language, usually caused by left hemisphere damage with to broca’s area (impairing speaking) or to wenicke’s area (impairing understanding)
Broca’s area
A frontal lobe brain area, usually in the left hemisphere, that helps control language expression by directing the muscle movements involved in speech
Wernicke’s area
A brain area, usually in left temporal lobe, involved in language comprehension and expression
Point to remember
In processing language, as in other forms or information processing, the brain operates by dividing its mental functions (speaking, perceiving, thinking, remembering) into subfunctions
Thinking and Language
Linguistic determination
Whorf’s hypothesis that language determines the way we think
Today’s psychologists believe that this is too extreme
Linguistic relativism
The idea that language influences the way we think
In Class notes
Language is arbitrary
Made up of learned symbols
Generally words, written and spoken, in no way reflect what they refer to
Example:
“Apple” vs. “pomme” vs. “manzana”
Levels of language
Phonology
Sounds
Example:
Word: CAT
Phoneme: /k/ /a/ /t/
Smallest unit of speech
Language sounds and how to combine them
English has 40-45 phonemes
About 100 different phonemes world-wide
Other languages have a different number
All languages have a sub-set
Certain combinations are “allowed” in each language:
Snart …… okay?
Tnart ……. Not okay
Sbarro …. Okay in italian, sounds funny in english
Know lots of “rules” we are not conscious of
Plural of cabbage?
Plural of lip?
Visemes
Each sound we make is associated with the shape of our mouths
Mouth shapes that are associated with phonemes
Many phoneme-to-one viseme mapping
Several phonemes will correspond to 1 viseme
Orthography
Conventions
Spelling, capitalization, etc.
Morphology
Meaningful parts of words
The smallest units of meaning in a language
Convey information about semantics: meaning derived from words and sentences
Can be full words (example: dog)
Modifiers (example: “dog+s” → dogs)
Also -ed to make past tense
Help us form new words
Semantics
Meaning
Syntax
Structure
Clauses and sentences
Ways that words can (and can’t) be put together
This sentence no verb
This sentence has contains two verbs
This is not a complete
This either
This sentence are not okay
Weird syntax can cause problems
Discourse
Exchange of ideas
Connected unit of speech/writing
Longer than 1 sentence
Pragmatics
Socially appropriate use of language
Extralinguistic information
Elements of communication not part of contact but are critical to interpreting meaning
Elements of communication that aren’t part of the content of language but are critical to interpreting its meaning
Facial expressions, tone of voice, previous statements by others
Why emailing/texting can be problematic
Used to help interpret ambiguous information
Playful “shut up”
Serious “shut up”
Prosody
Elements of communication that aren’t part of the content of language but are critical to interpreting its meaning
Patterns of rhythm and sound
Inflection/stress/intonation that implies a change of meaning
Language diversity
How many languages can you think of?
Which languages do you think are the most common?
Roughly 7000 spoken languages in the world
Dialects
Variations of the same language used by groups of people from specific geographic areas, social groups, or ethnic backgrounds
Use consistent syntax rules, although they may differ from “mainstream” speech
Different dialects can generally understand each other
Language acquisition
Language requires a long learning period and hefty brain power
So… it must be worth it
Communication of complex ideas
Coordinates social interactors
Begins in the womb
Learn mom’s voice
Native language
A story
0-1 years old
Babbling stage
Phonemes of their native language
Learn to control noises they make
1-2 years old
Start to pronounce words
One word stage
Single words to convey an entire thought
over/underextension
Comprehension precedes production
2-3 years old
Two-word stage
Phrases with syntax
Vocabulary explosion
3+ years old
Critical period of language
A period in the lifespan during which a particular skill must be acquired if it is to be acquired at all
No evidence for strict critical period in language - instead, “sensitive period”
Special Language learning
Sign language
Uses visual instead auditory communication
Involves hands, face, body, and “sign space”
Bilingualism
Proficiency and fluency in two languages
Most important factor in learning age
Cons
Slows some aspects of the acquisition process in each (syntax)
Pros
Language acquisition: Theories
Imitation
Babies hear language used in systematic ways and learn by imitating it
Behaviorists: “they imitate what they are reinforced for”
Nativism
Noam Chomsky
Suggests children are born with some basic knowledge of how language works
Kids are born with expectation and about (some kind of) syntax
Social Pragmatics
View that children infer what words and sentences mean from context and social interaction
Assumes kinds know and are able to infer a lot
General cognitive processing
View that children’s ability to learn language results from general cognitive skills
Doesn’t explain
Why children are better at language learning than adults
Language specific brain areas
What counts as language
Animal communication
Animals communicate in the variety of ways
Scent
Body language
Is any of this actual “language”?
Different from human communication in important ways
Not as complex or structured
Fixed
Specific messages
Tend to be about threats/mating
Not generative
No way to communicate new idea
Language and thought
Is thinking just internal speech?
Linguistic determinism
View that all thought is represented verbally and that language defines our thinking
Cannot think without language
Little to no evidence for this
Imaging studies say otherwise
Linguistic relativity
The Brain and Language
Damage to any one of several areas of the brain cortex can impair language
Today’s neuroscience has confirmed brain activity in Broca’s and Wernicke’s area
Aphasia
Impairment of language, usually caused by left hemisphere damage
Broca’s area
Impaired speech production
Wernicke’s area
Impaired speech perception