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Today’s agenda
• Submit HW5 now!• Arguments for Universal GrammarArguments for Universal Grammar
(cont’d)• Review for the Final Exam & Exercises• Review for the Final Exam & Exercises• Course evaluation
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Arguments for UniversalArguments for Universal Grammar
• What were they? Recall from yesterday’s lecture / readings…y y g
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Home Sign
• Goldin-Meadow & Mylander 1990• 10 deaf children born to hearing parents10 deaf children born to hearing parents• not exposed to sign language
t ki ith l h• not making progress with oral speech
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Home Sign
• development of gestural, symbolic system of communicationy
• parallels normal linguistic development (up to a point)(up to a point)
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Home Sign
limited system• mainly stayed at 2-word stagemainly stayed at 2 word stage• no recursion
b t t ti (b f• no abstract connectives (before, because, etc.)
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Home Sign
What developed:• vocabulary (lexicon)vocabulary (lexicon)• consistent word order
b l i fl ti ( ti l i ASL)• verbal inflections (spatial as in ASL)
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Home Sign
Characterization of the input (mothers’ utterances)(mothers utterances)• smaller vocab (1/3 of child’s)
f t i f t• fewer strings of gestures• not reliable word order• more complex utterances later than
children
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Home Sign
Conclusion• children had more elaborate andchildren had more elaborate and
consistent grammar than parents• children construct mental grammar• children construct mental grammar
(from underdetermined input)t h did ’t th i l h– caveat: why didn’t their langauge have
recursion/transformation though?
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Nicaraguan Sign LanguageNicaraguan Sign Language
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NSL development
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Nicaraguan Sign LanguageNicaraguan Sign Language• creolization with no parallel language
input• all children of hearing parents, no signing
adults• not taught a signed language in school
(teachers only taught spanish lipreading and fingerspelling)
• rudimentary system develops from children playing, interacting on school groundsgrounds
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• Homesign– Gestures => structured symbolic
communication systemPidginization• Pidginization
• Creolizationid i ( t ) f ll fl d d l– pidgin (no syntax) => full-fledged language
Why can’t a full-fledged language develop in one generation?develop in one generation?
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Hypothesis
• the time required to develop a language (“from scratch”) exceeds the critical ( )period
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Spatial Modulations in NSL
• Senghas & Coppola• spatial modulations develop as a meansspatial modulations develop as a means
of marking agreement
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Participants
• Cohort 1: entered school pre-1983• Cohort 2: entered school post-1983Cohort 2: entered school post 1983• Within each cohort, divided by age of
exposureexposure– early: before 6 years old
iddl 6 10 ld– middle: 6-10 years old– late: after 10 years old
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Results
• Early and middle-exposure participants in 2nd cohort use spatial modulations to psignal verb agreement
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Results
• Evidence for critical period• Evidence that children create patternsEvidence that children create patterns
rather than just reproducing what they find in the inputfind in the input
• Evidence for innate knowledge
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Summary: Poverty of theSummary: Poverty of the Stimulus
• every child constructs a grammar (a set of rules) based on insufficient evidence)
• More comes out than went in!• trace back to UG• trace back to UG
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Summary
Hypotheses:1 ∅ + input => grammar NO1. ∅ + input > grammar2. LAD + ∅ => grammar3 LAD i t
NONOYES3. LAD + input => grammar YES
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Open Questions
• How do features like recursion develop in the origin and evolution of language?g g g
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Open Questions
• What is the critical period? • Why can children learn language betterWhy can children learn language better
than adults?• due to innate knowledge of language• due to innate knowledge of language
structure? ORd t h i ht d t l it t• due to heightened natural capacity to notice patterns in the environment?
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What about chimps?What about chimps?
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Do Chimps have UG?
Issues• signed language vs vocalsigned language vs. vocal
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Previous Studies
Washoe (Allen & Beatrice Gardner 1960s)• simplified ASL-like signsp g• 5 years: 132 signs (including signs they
made up)made up)• combinations:
di t R– dirty Roger– water bird = swan
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Washoe
• syntax?Susan: WHO SMART?Susan: WHO SMART?Washoe: SMART WASHOES WHO STUPID?Susan: WHO STUPID?Washoe: SUSAN STUPID
No fixed word order
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Nim
• Raised in human setting from infancy to 4 years (Terrace)y ( )
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Do chimps have UG? Nim
ResultsResults• precocious in many waysprecocious in many ways• learned words (symbolic
representations for objects and events)representations for objects and events)• 4 years: 125 signs• produces 2 3 4 word utterances• produces 2-3-4 word utterances
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NimNimResults (3 signs)
Apple me eatDrink me eatDrink me eatEat Nim meN t Ni tNut Nim nutTickle me eatGrape eat Nim
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NimNimResults (4 signs)
banana Nim banana NimEat drink eat drinkEat drink eat drinkGrape eat Nim eatE t Ni d i kEat me Nim drinkMe Nim eat meTickle me Nim play
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NimNimResults
• Nim’s longest sequence:
give orange me give eat orange me orange give me eat orange give me youorange give me eat orange give me you
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Do chimps have UG?Nim
ResultsResults• how was Nim’s development similar tohow was Nim s development similar to
or different from human children’s development of language?p g g
• syntax?
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NimNimResults
• no systematic word order• cases of correct word order are often
repetitions of what teacher had just said• longer utterances involve repetitions of g p
same words• Also, the vocab size learned in 4 years , y
is much smaller than that of human 4-year-olds (no vocab spurt seen in human children)
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Nim: Criticisms of experiment?
• should be raised with ASL spoken in household by native speakersy p
• even better: test off-spring of ASL-trained mother chimptrained mother chimp
• have cohort group all exposed to ASLh i t ti• more emphasis on testing
comprehension rather than production
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But even so,
• pretty clear difference between children and chimps
• Argument for innate Universal Grammar?
• species specificity
• cf. Kanzi (bonobo) studied by Savage-Rumbaughg
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Summing up everythingSumming up everything…
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Linguistics as cognitive science:Linguistics as cognitive science:the scientific study of human
language
But why study Language?
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Cognitive ScienceCognitive Science
• What is the nature of the human• What is the nature of the human mind?
• How is knowledge represented?• How is knowledge acquired?How is knowledge acquired?• What is the balance between
t d t ?nature and nurture?
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Language
• universality• distinguishing feature between humansdistinguishing feature between humans
and other animals
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So, what is Language like?
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Properties of HumanProperties of Human Language
• creativity (expressivity)
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Creativity• Make up a sentence that you think no• Make up a sentence that you think no
one has ever said before in the history of the universe Write it downof the universe. Write it down.
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Creativity1. That blue shirt looks like a shiny pink
toaster.2. Candied squid on a stick is a
scrumptious delicacy to eat on my yachtscrumptious delicacy to eat on my yacht.3. I love waking up at 6am to take a final.4 *Th il t l l t d t4. *The wearily traveler early stopped tea
some for.
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Creativity
• sentences are not memorized• sentences conform to rules• sentences conform to rules• infinite use of finite means (Wundt,
Chomsky)
=> Mental Grammar
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Conceptsmotor control
syntax phonology
Lexicon perceptionperception
The Grammar
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Generative SyntaxGenerative Syntax
PSPS Rules Trans-
formationsDeep Structure
Surface Structure
LexiconLexicon
sleep Vcat Nthe Det
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Properties of HumanProperties of Human Language
• creativity (expressivity)• discrete combinatory systemdiscrete, combinatory system• hierarchical structure
i• recursion• PS rules & Transformations• Constraints on transformations (e.g.,
island constraints, structure depedence), p )
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Properties of HumanProperties of Human Language
• Phonology: segments combine to form (syllables &) words( y )
• Rules modify sounds
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The apple fell from the tree
• Why does the subject precede the verb?• Why is the vowel in “from” nasalized?
due to physical facts about the world?
due to physical facts about the humandue to physical facts about the human motor system?
⇒purely internal to the grammar⇒facts about the grammar of Englishg g
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Conclusion 1
• mental grammar: specialized module containing a set of grammatical g gprinciples/rules
• accounts for set of patterns in languageaccounts for set of patterns in language
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How did we come to know thisHow did we come to know this set of patterns?
• patterns exist in the primary linguistic data (English)( g )
• but patterns are compatible with infinite number of systemsnumber of systems
• each child builds own systemhild’ t i th• every child’s system is the same
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LAD
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English Input
PLDA
PLDB
PLDCGrammar GrammarGrammar
A C
Poverty of the Stimulus
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structure dependence island constraint
EnglishJapanese ASL
Grammar GrammarGrammar
Universal Grammar
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LAD
Species specificity
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Conclusion 2
• innate knowledge: the human brain contains a genetically-determined g yspecialization for language
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What are some of the innateWhat are some of the innate principles in UG?
• set of possible speech sounds• articulatory featuresarticulatory features• structure dependence
l lit t i ti (i l d )• locality restrictions (islands)• constraints on word learning (whole
object principle)• Others?
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Consequences of ChomskianConsequences of Chomskian linguistic theories
• Before Chomsky – mere descriptions of sounds and constructions; no concept ; pof ‘mental’ component of language
• Chomsky 1957: mental grammar &Chomsky 1957: mental grammar & innateness; linguistics as a study of this cognitive module (cognitive science)cognitive module (cognitive science)
• scientific study of language –hypothesis testing on the properties ofhypothesis testing on the properties of mental grammar
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Discussion Question 1Discussion Question 1• Imagine you’re on a plane, and theImagine you re on a plane, and the
person next to you asks what you learned in this linguistics course.learned in this linguistics course.
How would you explain the main ideas• How would you explain the main ideas you learned in class? Use some of the arguments we discussed in class andarguments we discussed in class, and explain them in your own words (without using too many technical terms)using too many technical terms)
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Discussion Question 2Discussion Question 2• Are you convinced that humans have aAre you convinced that humans have a
mental grammar?
• Are you convinced that there is a biological foundation for language?biological foundation for language?
• Which arguments for mental grammar/innateness did you find convincing/unconvincing?
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Discussion Question 3Discussion Question 3• There are many things we didn’t coverThere are many things we didn t cover
in this class – what would you like to have learned more about?have learned more about?
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Linguistics courses at UMD• syntax 1 2syntax 1, 2• phonology 1, 2
d i ( ti )• grammar and meaning (semantics)• child language• undergrad seminars (psycholinguistics,
advanced syntax, abnormal language y , g gacquisition, L2 acquisition, etc)
• Related courses in HESP School ofRelated courses in HESP, School of languages, etc
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Linguistics experience at UMD
• Directed studies (being a research assistant))
• participating in linguistic experiments
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Linguistics books
• Reading while being an undergrad is important! p
• There are many linguistics books / journal articles you can read at thisjournal articles you can read at this stage… If you have particular interests, let me know and I can give you somelet me know and I can give you some references
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Recommended book