Psyc112 Test Flashcards
What is a phoneme?
Smallest Unit of Language
Single Unit of Sound that changes meaning
About 40 in English
Not all languages have the same phoneme
What is a morpheme?
Second smallest Unit of Language (The-Umpire)
Smallest unit that carries meaning
Words, Suffixes, Prefixes
2 types: content, function (often are unbound, cannot stand alone e.g. -s has no meaning)
Syntax vs Semantic
Syntax = processing function words
Semantic = processing content words
Broca’s Aphasia
No issue in understanding speech as cognition/comphrension is intact, though motor skills are impaired.
Wernicke’s Aphasia
Able to produce language physically as motor skills are intact, but cognition suffered, makes no sense, does not have function words
Surface Structure
Organization of words at a surface level
Deep Structure
Meaning of sentence
Few days old babies are able to:
Prefer human speech to non-speech, but cannot differentiate human sounds over animal sounds (around 3 months)
HAS Explained:
High Amplitude Sucking, babies suck harder when hearing a new sound
When does perception of sound become categorical
First 9 months
How is detection of phonemic changed?
Modified by experience
Cooing happens at:
2 months
Reduplicated Babbling happens at:
6-7 months
Variegated Babbling happens at:
11-12 months
At 10 months adults are able to:
Tell which language baby is learning
Why do infants make different sounds:
Smaller mouth -> vocal tract
Development of motor cortex
Word comprehension (receptive vocabulary) precedes productive vocabulary by:
4 months
Initial acquisition rate for comprehension is:
Twice that of production
Vocabulary Burst happens after
50 first words are learned
Underextension meaning
Dog -> only for family dog but not other dogs
Overextension
Dog -> refer to all dogs and cats
When are words overextended?
1-25 = 45%
26-50 = 35%
51 -75 = 20%
Protowords defined
An early word-like utterance produced by an infant before it has acquired true language
Holophrase
A single word that stands for an entire statement
When do children begin to combine words?
Around 2 years
By 4 years able to:
Syntax begins to resemble adult language
Nativist views of language
Children biologically predisposed to learn language, prespecificed knowledge of syntax, takes in ambient language around them to provide specific knowledge
Bioprogram Hypothesis
Children take input from outside to add to their bio-program, similar to Chomsky’s theory of Language Acquisition Device
Why do nativist views on language exist? (3 reasons)
- Children acquire language rapidly
- Children acquire language effortlessly
- Children acquire language without being taught
Evidence of bioprogram hypothesis
Pidgin evolution into Creoles
Sensitive Period Defined
An ideal time for acquire certain parts of language, difficult afterwards (Genie)
Isolated children able to:
Pick up content words, but unable to pick up syntax
Deaf Signers (Newport 1990)
The older the language acquired, the lower the percentage of correct
Saffran et al 1996
Children will spend less time listening to familiar words and more time looking at novel words
Traits of Parentese
- Simplified speech
- Exaggerated intonation
Child-cented Talk
Adapt talk to child’s level
Situation-centered Talk
Child learns to adpt to situation
Independent Culture Traits (3)
- Internal attributes
- Self concept separate from group
- Personal goals take priority
Interdependent Culture Traits (4)
- Social roles
- Self concept = group concept
- Group goals take priority
- Relationships = crucial
Analogical Representation
Mental image, represents the concept, but also shares similarities (e.g picture of a dog)
Symbolic Representation
Symbols = represent any kind of content, but don’t represent what they stand for, visualizing something, in depth thinking concluded in simple image
Proposition
Made up of a subject and what is being asserted about it (what is it doing)
Concepts
An unambiguous internal representation that defines a group/set of objects/events
Deductive Reasoning
Move from general principles/rules to specific
If/then problems
Syllogism
Syllogism
If something is true for all members of a category and A is a member of that category, then that something will also be true for A
Inductive Reasoning
Test Hypothesis
From data to theories
Start with specifics and infer general principles
Belief Bias
People judge whether the conclusion is plausible on its own rather than following the logic
Often we go straight into conclusion, deducting plausibility based on our own belief (if irrelevant towards our own belief, conclusion is slower)
Belief bias is the tendency in syllogistic reasoning to rely on prior beliefs rather than to fully obey logical principles.
Confirmation Bias
Seek information that confirms what one already believes
Heuristics
Shortcuts that are correct much of the time, helps conserve cognitive resources
Availability Heurisitcs
Estimates are influenced by how easy it is to retrieve information
Saliency Bias
The salience bias (also known as perceptual salience) occurs when we focus on items or information that are especially remarkable while casting aside those that lack prominence. Yet, people tend to overlook this difference because it often appears irrelevant from an objective point of view.
Algorithm
A rule that guarantees a solution
Heurisitic
A strategy that doesn’t guarantee a solution, but often work and saves time
Anagram
Looking for all possible solutions
Means-End Analysis (Tower of Hanoi)
Work step-by-step to get closer to goal as you solve the problem, monitoring each step to see how much closer to the goal
Hill Climbing (Farmer Boat Example)
Change the present state of the problem so you are one step closer to solving the problem
Divergent Thinking
Thinking outside the box
Analogy
Use the same way to solve a problem in the past for a present problem
Duncker’s 1945 Radiation Problem
After being told the story would help, 92% of people able to solve the problem (30% only told story, 10% not told)
Mental Set
Habits and Assumptions you bring to solving a problem
Functional Fixedness
Unable to see things creatively outside of their regular function
Incubation
Taking a break helps release from a mental set
Whorfian Hypothesis
Having a specific language determines or influences how we think
Berlin & Kay
Focal colors are most representative colour of the colour category
Rosch (evidence against Whorfian hypothesis)
Studied Dani tribe in Papua New Guinea, understood difference between dark/light color terms as focal colors = privileged memory
Russian Blues Experiment
Russian Speaker faster to discriminate colours between categories than within categories, though discrimination is affected by verbal interference
Boroditsky (2001)
Mandarin Speakers = time is vertical
English Speakers = time is horizontal
Absolute Task vs Relative Task
Absolute: Ignoring contextual information
Relative: Incorporating contextual information
Length of line in square
Samuel Morton
Believed head size is related to intelligence, measured skulls from different races (bias towards Europeans)
Paul Broca
Weighed brains of cadavers, compared groups, believed heavier brain is more intelligence (corrected for body size, though not for gender)
Correlation between intelligence and brain size
0.33, higher in females, and adults
Galton
Intelligence as hereditary
Eugenics
Made first system attempts to measure intelligence
Galton examined
Simple, perceptual sensory motor abilties (response, strength, perception), found there was no relation to social class, Pearson’s R
Binet
Intelligence Testing for Children, more concerned with identifying children that needed help, intelligence = psychological construct, intelligence is a general ability, not just accumulation of knowledge
Binet Test
Performance on complex tasks with different levels of difficulty, excluded tasks that did not correlated with school performance
Measuring intelligence in children through mental age
Mental Age/Chronological Age * 100
Goddard
Believed intelligence is a fixed trait, innate (eugenics), wanted to identify intelligence to limit, segregate, selectively breed
- Translated Binet test to English and promoted mass testing
Flynn Effect
People tend to perform better (5 to 25 points per generation)
Correlation Coefficient (R)
Measures the magnitude of relation between 2 variables
Spearman’s 2 Factor Theory
G = general, underlies performance on all intelligence subtests
S = specific to type of task
Cattell & Horn
Fluid: Ability to learn, percieve relationships, deal with new problems
Crystalised: Acquired knowledge of culture, vocabulary size
What do intelligence scores predict?
Job Performance
Creativity
Health and Wellbeing
Sternberg’s Triarchic Theory of Intelligence
- Creative skills (formulate)
- Analytical Skills (compare/analyse)
- Practical Skills (carry it out)
- Wisdom based skills
Gardner’s Theory of Multiple Intelligences
- Linguistic
- Musical
- Logical/mathematical
- Spatial
- Bodily-kinesthetic
- Internpersonal and intrapersonal
Each type associated with localised area of brain, pattern of development, evidence form exceptional individuals
Limitations of Twin Studies
Twins are treated more similiarly by parents
Abecedarian Project
Intervention Group were better off overall, early childhood education has impact later on in life.
Scarr and Weinberg 1976
African American children adopted into high SES families show higher IQ scores than those who remain in low SES homes.
Spencer, Steele, Quinn 1999
Girls and boys math experiment
Longitudal Design
Same group overtime
Cross Section Design
Different groups
4 stages of cognitive development
- Sensorimotor
- Preoperational
- Concrete Operations
- Formal Operations
Birth to 3 months
Looking at visual stimuli
Turn head towards noise
3 months
Follows moving object with eyes
Stares at place where object has disappeared, but will not search
5 months
Grasp/manipulate objects, anticipates future position of objects
8 months
Searchs for hidden object
A not B error, search in last place they found the object
12 months
Will search in last place they saw the object
Object Permanance
Objects do not cease to exist when out of sight
Schema
A mental representation/set of rules that defines expectations, formation begins in sensorimotor stage
Assilimiation
New Information modified to fit in with an existing schema
Accomodation
Ecidting schema modified/changed by new experience
Representational Thought
Ability to form mental representations of others behaviour
Preoperational Stage (2-7)
Ability to think logically and symbolically, rapid development of language, counting, object manipulation
Conservation
The understanding that specific properties of objects remains the same despite apparent changes in arrangement of those objects
Egocentrism
A child’s belief that others see the world the same way they do
Concrete Operations Stage (7-12)
Able to perform logical analysises, empathesis with thoughts and feelings of others, understand complex cause-effects relations
Formal Operations Stage (12+)
Abstract reasoning, metacognition (thinking about one’s thinking), dependent on exposure to principles of scientific understanding
Visual Cliff Experiment
Children able to percieve depth around the same time they can crawl, pre-crawling infants able to discriminate depth
Occlusion
Person behind gate, infants notice things that appear odd
Habituation Procedure
Infants prefer novel things, which can be used to determine which stimuli is more novel
A not B Error Explained
Infants able to differentiate, but appear to have difficulty overriding a motor habbit.