may 7, 2003university of amsterdam1 markedness in acquisition is there evidence for innate...

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May 7, 2003 University of Amsterdam 1 Markedness in Acquisition • Is there evidence for innate markedness-based bias in language processing? • Look to see whether young infants are sensitive to markedness before they’ve had sufficient relevant experience • Before 6 months, infants have not shown sensitivity to language- particular phonotactics

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Page 1: May 7, 2003University of Amsterdam1 Markedness in Acquisition Is there evidence for innate markedness- based bias in language processing? Look to see whether

May 7, 2003 University of Amsterdam1

Markedness in Acquisition

• Is there evidence for innate markedness-based bias in language processing?

• Look to see whether young infants are sensitive to markedness before they’ve had sufficient relevant experience

• Before 6 months, infants have not shown sensitivity to language-particular phonotactics

Page 2: May 7, 2003University of Amsterdam1 Markedness in Acquisition Is there evidence for innate markedness- based bias in language processing? Look to see whether

May 7, 2003 University of Amsterdam2

Experimental Exploration

of the Initial StateCollaborators:

Peter Jusczyk Theresa AlloccoLanguage Acquisition, 2002

Karen Arnold Elliott Moretonin progress

Grammar at 4.5 months?

Page 3: May 7, 2003University of Amsterdam1 Markedness in Acquisition Is there evidence for innate markedness- based bias in language processing? Look to see whether

May 7, 2003 University of Amsterdam3

The Initial State

OT-general: MARKEDNESS ≫ FAITHFULNESS

Learnability demands (Richness of the Base)(Alan Prince, p.c., ’93; Smolensky

’96a)

Child production: restricted to the unmarked Child comprehension: not so restricted

(Smolensky ’96b)

Page 4: May 7, 2003University of Amsterdam1 Markedness in Acquisition Is there evidence for innate markedness- based bias in language processing? Look to see whether

May 7, 2003 University of Amsterdam4

Testing the Initial State• Linking hypothesis: More harmonic phonological stimuli

⇒ Longer listening time • More harmonic:

M ≻ *M, when equal on F F ≻ *F, when equal on M– When must choose one or the other,

more harmonic to satisfy M: M ≫ F

• M = Nasal Place Assimilation (NPA)

Page 5: May 7, 2003University of Amsterdam1 Markedness in Acquisition Is there evidence for innate markedness- based bias in language processing? Look to see whether

May 7, 2003 University of Amsterdam5

• X/Y/XY paradigm (P. Jusczyk)

un...b...umb

un...b...umb

Experimental Paradigm

p = .006um...b...umb um...b...iŋgu

iŋ…..gu...iŋgu vs. iŋ…..gu…umb

… … ∃FAITH

• Headturn Preference Procedure (Kemler Nelson et al. ‘95; Jusczyk ‘97)

•Highly general paradigm: Main result

ℜ *FNP

Page 6: May 7, 2003University of Amsterdam1 Markedness in Acquisition Is there evidence for innate markedness- based bias in language processing? Look to see whether

May 7, 2003 University of Amsterdam6

15.36

12.31

0

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Faithfulness Markedness M ≫ F

Tim

e (s

ec)

Higher HLower H

4.5 Months (NPA)Higher

HarmonyLower Harmony

um…ber…umber

um…ber… iŋgu

p = .006 (11/16)

Page 7: May 7, 2003University of Amsterdam1 Markedness in Acquisition Is there evidence for innate markedness- based bias in language processing? Look to see whether

May 7, 2003 University of Amsterdam7

15.2315.36

12.7312.31

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Faithfulness Markedness M ≫ F

Tim

e (s

ec)

Higher HLower H

Higher Harmony

Lower Harmony

um…ber…umber

un…ber…unber

p = .044 (11/16)

4.5 Months (NPA)

Page 8: May 7, 2003University of Amsterdam1 Markedness in Acquisition Is there evidence for innate markedness- based bias in language processing? Look to see whether

May 7, 2003 University of Amsterdam8

15.2315.36

12.7312.31

0

2

4

6

8

10

12

14

16

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Faithfulness Markedness M ≫ F

Tim

e (s

ec)

Higher HLower H

4.5 Months (NPA) Markedness * Faithfulness

* Markedness Faithfulness

un…ber…umber

un…ber…unber

???

Page 9: May 7, 2003University of Amsterdam1 Markedness in Acquisition Is there evidence for innate markedness- based bias in language processing? Look to see whether

May 7, 2003 University of Amsterdam9

5 Experiments