Lec4: Phonology...The ‘wug’ test A well-known experiment on children’s knowledge of...
Transcript of Lec4: Phonology...The ‘wug’ test A well-known experiment on children’s knowledge of...
Lec4: Phonology
Ashwini Vaidya
HUL 242
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Figure: c©Jean Berko
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Figure: c©Jean Berko
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The ‘wug’ test
• A well-known experiment on children’s knowledge ofmorphological rules by Jean Berko (1958)
• Children internalize the rules of making plurals – and alsogeneralize them to unknown forms
• Children (Ages 4-7), Total of 56 subjects
• Q: Do we memorize the plural form ?/spelling?/sound ?/something else?
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English (regular) plurals
cab boy
match bus
cuff bar
can bush
spa call
love
butt cat
[kæb] [bOI][mæÙ] [b2s]
[k2f] [bar]
[kæn] [bUS][spa] [kOl]
[l2v]
[b2t] [kæt]
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English plurals
• Hint: Look for minimal pairs [kæt] and [kæb], [b2t] and [b2s]
• Is there a phonetic difference in the endings?
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Regular plural formation
• Decompose specific sounds into features
• Add [-z] before ???? segments
• Add [-s] before ???? segments
• Add [-Iz] before ???? segments
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English (regular) plurals
[kæb] [k2f] [mæÙ]
[bOI] [kæt ] [b2s]
[kOl] [b2t] [bUS][kæn] [b2z]
[spa]
[l2v]
[bar]
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Phonological rule
Form Environment Example
[s] Word ends in a voiceless (-sibilant) consonant [kæt ] [k2f]
[z] Word ends in a voiced (-sibilant) consonant [kæn] [kæb]
[Iz] Word ends in a sibilant consonant [b2s] [mæÙ]
• Underlying form [-z]
• Rule 1: Vowel insertion θ → [I] / [+sibilant] [+sibilant]
• Rule 2: Voicing assimilation [+voice] → [-voice] / [-voice]
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Phonological rule
Form Environment Example
[s] Word ends in a voiceless (-sibilant) consonant [kæt ] [k2f]
[z] Word ends in a voiced (-sibilant) consonant [kæn] [kæb]
[Iz] Word ends in a sibilant consonant [b2s] [mæÙ]
• Underlying form [-z]
• Rule 1: Vowel insertion θ → [I] / [+sibilant] [+sibilant]
• Rule 2: Voicing assimilation [+voice] → [-voice] / [-voice]
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Plural formation rule
• Plural formation for cat-cats, bus-buses, cab-cabs
[kæt] + -z [b2s] + -z [kæb] + z Underlying form
- [b2s] + I - Vowel insertion
[kæt] -s - - Voicing assimilation
[kæts] [b2sIz] [kæbz]
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Other rules for plural formation
• What about knife-knives wife-wives half-halves loaf-loavesthief-thieves ? (Relic of Old English, f becomes v, in betweenvoiced sounds) (Not for proof-proofs)
• Borrowed words from Latin and Greek follow their own pluralending system (formula-formulae, fungus-fungi (L),schema-schemata (G))
• Many other exceptions! foot-feet etc.
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English data
illegible impossibleindecent irregular
inharmonious illegitimateimpalatable immortalinarticulate irreparable
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English data
illegible impossibleillegitimate impalatableirregular immortalirreparable inarticulate
inharmoniousindecent
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English prefix -in
• The prefix -in changes to -il and -ir before /l/ and /r/ (liquids)
• It changes to -im before bilabials like /p/ and /m/
• For all others it is simply added at the beginning
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Phonological processes
• Ex1: [æsk] becomes [æks] (Children’s speech aminal insteadof animal)
Metathesis
• Ex2 [glas] becomes [gilas])
Epenthesis (of a vowel)
• Epenthesis often occurs when there is an unfamiliar consonantcluster in a borrowed word [gl] or [lb]
• Assimilation Two sound segments become more similar toeach other, such that there’s a change in feature values
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Phonological processes
• Ex1: [æsk] becomes [æks] (Children’s speech aminal insteadof animal)
Metathesis
• Ex2 [glas] becomes [gilas])
Epenthesis (of a vowel)
• Epenthesis often occurs when there is an unfamiliar consonantcluster in a borrowed word [gl] or [lb]
• Assimilation Two sound segments become more similar toeach other, such that there’s a change in feature values
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Phonological processes
• Ex1: [æsk] becomes [æks] (Children’s speech aminal insteadof animal) Metathesis
• Ex2 [glas] becomes [gilas])
Epenthesis (of a vowel)
• Epenthesis often occurs when there is an unfamiliar consonantcluster in a borrowed word [gl] or [lb]
• Assimilation Two sound segments become more similar toeach other, such that there’s a change in feature values
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Phonological processes
• Ex1: [æsk] becomes [æks] (Children’s speech aminal insteadof animal) Metathesis
• Ex2 [glas] becomes [gilas]) Epenthesis (of a vowel)
• Epenthesis often occurs when there is an unfamiliar consonantcluster in a borrowed word [gl] or [lb]
• Assimilation Two sound segments become more similar toeach other, such that there’s a change in feature values
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Phonological processes
• Ex1: [æsk] becomes [æks] (Children’s speech aminal insteadof animal) Metathesis
• Ex2 [glas] becomes [gilas]) Epenthesis (of a vowel)
• Epenthesis often occurs when there is an unfamiliar consonantcluster in a borrowed word [gl] or [lb]
• Assimilation Two sound segments become more similar toeach other, such that there’s a change in feature values
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Phonological processes
• Ex1: [æsk] becomes [æks] (Children’s speech aminal insteadof animal) Metathesis
• Ex2 [glas] becomes [gilas]) Epenthesis (of a vowel)
• Epenthesis often occurs when there is an unfamiliar consonantcluster in a borrowed word [gl] or [lb]
• Assimilation Two sound segments become more similar toeach other, such that there’s a change in feature values
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Affix and its realizations
[-im] [-il] [-ir]
/-in/
a) Prefix -ina) Prefix -in
[-s] [-Iz] [-z]
/z/
b) Regular plural -z
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Morpheme and Allomorph
• Abstract form of the negative prefix -in and the plural -s
• This is then realized in a particular form, based onenvironmental constraints
• The abstract form is a morpheme; paired with the meaningof ‘negation’ or ‘plural’
• Its phonologically conditioned variants are allomorphs
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Morpheme and Allomorph
• Abstract form of the negative prefix -in and the plural -s
• This is then realized in a particular form, based onenvironmental constraints
• The abstract form is a morpheme; paired with the meaningof ‘negation’ or ‘plural’
• Its phonologically conditioned variants are allomorphs
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Morpheme and Allomorph
• Abstract form of the negative prefix -in and the plural -s
• This is then realized in a particular form, based onenvironmental constraints
• The abstract form is a morpheme; paired with the meaningof ‘negation’ or ‘plural’
• Its phonologically conditioned variants are allomorphs
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Morpheme and Allomorph
• Abstract form of the negative prefix -in and the plural -s
• This is then realized in a particular form, based onenvironmental constraints
• The abstract form is a morpheme; paired with the meaningof ‘negation’ or ‘plural’
• Its phonologically conditioned variants are allomorphs
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Phoneme and Allophone
• In a similar way, we can think of phonemes and allophones
[ph]in [b]in ra[p]id ra[b]id la[p] la[b]
[th]ot [d]ot a[t]om A[d]am ma[t] ma[d]
[kh]ap [g]ap jac[k]et jag[g]ed pic[k] pi[g]
Table: Distribution of voiced and voiceless stops in English
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Phoneme and Allophone
[ph] [p]
/p/ • Phonemes are contrastive /p/ /b/
• Allophones are complementary -i.e.never occur in the sameenvironment
• Phonetic similarity betweenallophones and phonemes
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Minimal pairs
• Forming minimal pair is an important way of forminginferences about sounds
• E.g. [kæt] [kæp], [k2t] [kæt]
• The sound contrast = change in meaning
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Finnish data
Are [t] and [d] phonemes or allophones?
[kudot] ‘failures’ [madon] ‘of a worm’
[kate] ‘cover’ [maton] ‘of a rug’
[katot] ‘roofs’ [ratas] ‘wheel’
[kade] ‘envious’ [radon] ‘of a track’
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German fricatives
Are [x] and [c] allophones ?
nIct ‘not’ ba:x ‘Bach’re:c@n ‘rake’ la:x@n ‘to laugh’SlEct ‘bad’ kOxt ‘cooks’
ri:c@n ‘to smell’ fErsu:x@n ‘to try’haImlic ‘sly’ ho:x ‘high’
rEcts ‘rightward’ SlUxt ‘canyon’kri:c@ ‘to crawl’ fErflUxt ‘accursed’
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Korean data
State the context for Korean [r] and [l]mul ‘water’ ilkop ‘seven’
mulkama ‘place for water’ mal ‘horse’
mure ‘at the water’ malkama ‘place for horse’
pal ‘foot’ mare ‘at the horse’
pari ‘of the foot’ rupi ‘ruby’
s@ul ‘Seoul’ ratio ‘radio’
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American English (non) rhoticity
“You’re gonna shoot a [di:’@] ??”
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American English rhoticity
• Syllable final -r (postvocalic -r) dropped in some varieties ofAmerican English
• William Labov’s 1966 study of New York department storeworkers (social stratification of English)
• ‘fur’ ‘fourth floor’ ; pronunciation of /r/ associated withprestige
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Suprasegmental features
• Pitch, stress and segment length:- ways to distinguish betweensounds as well
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