Language Flashcards

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1
Q

Phonemes

A
  • Smallest unit of perceived speech
  • Different phonemes in different languages
    ● /l/ versus /r/ in English but not Japanese
  • 10 to 150 per language
    ● ~44 in English
  • Language-specific rules for combining (phonology)
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2
Q

Morphemes

A
  • Smallest unit that signals meaning
  • Combinations of phonemes
  • Prefixes, suffixes, roots, or entire words
  • Many thousands per language
  • Language-specific rules for combining (morphology)
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3
Q

Words

A
  • Smallest stand-alone units of meaning
  • Combinations of one or more morphemes
  • Tens or hundreds of thousands per language
  • Language-specific rules for combining (syntax)
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4
Q

Phrases

A
  • Organized grouping of one or more words
  • Play a particular role in grammatical structure of a sentence
  • Almost limitless number
  • Language-specific rules for combining (syntax)
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5
Q

Sentences

A
  • A set of words/phrases that (in principle) tells a
    complete thought
  • Can express a statement, question, exclamation,
    request, command, or suggestion
  • Almost limitless number
  • Sentences can be combined to form larger linguistic units (e.g. paragraphs)
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6
Q

Grammar vs. semantics

A
  • Grammar: rules for language structure including Morphology and Syntax
  • Semantics: How meaning is derived from morphemes, words, phrases, and sentances
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7
Q

Surface structure vs. deep structure

A
  • Phrase structure that applies to the order in which words
    are actually spoken
  • Deep structure: Fundamental, underlying phrase structure that conveys meaning
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8
Q

Transformational grammar

A

Rules that transform among surface structures having
same deep structure

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9
Q

types of ambiguity

A
  • Lexical ambiguity: when a word has two different meanings (ex: Buffalo buffalo Buffalo…)
    -Syntactic ambiguity: when same words can be grouped together into more than one phrase structure
  • Referential ambiguity: when same word/phrase can refer to two different things within a sentence, uses anaphors
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10
Q

Broca’s aphasia

A
  • Due to damage to Broca’s area
  • Speech is labored, slow &
    nonfluent with awkward
    articulation
  • Problems with language
    planning and production
    (not a motor problem)
  • Problems with understanding
    and using syntax
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11
Q

Wernicke’s aphasia

A
  • Due to damage to Wernicke’s area
  • Generally fluent, unlabored, well articulated
  • Problems translating auditory input into phonological forms that
    can then access semantics
  • Problems with language
    comprehension
  • Problems with understanding and using semantics
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12
Q

Left vs. right hemisphere

A

Split brain studies: left hemisphere can name objects, right hemisphere cannot

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13
Q

Prosody

A
  • intonation, tone, stress, and rhythm
  • used for emotional state, form, irony, emphasis, etc.
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14
Q

Aprosodia and types

A
  • Difficulty processing prosody
  • Productive aprosodia: monotonic, associated with damage to right hemisphere Broca’s equivalent
  • Receptive aprosodia: Difficulty detecting and understanding emotional tone, associated with damage to right hemisphere Wernicke’s equivalent
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15
Q

Sources of information

A
  • Genes: info learned on timescale of evolution
  • Past experience: Info learned on timescale of a human life
  • Internal state: Info learned on timescale of current episode
  • Environmental context: info learned now
  • Proximal stimulus: the stimulus itself
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16
Q

Interactive activation theory

A
  • Model of letter & word
    perception
  • Integrates bottom-up
    and top-down processes
17
Q

Garden path sentences

A
  • We parse a sentence “online” as we read
  • Same sentence structure but different past experiences
  • Ex: Time flies like an arrow; fruit flies like a banana
18
Q

FMRI

A
  • Function Magnetic Resonance Imaging
  • Measures changes in magnetization, using electromagnetic radiation and nuclear magnetic resonance
  • Neural activity -> Increased blood flow -> Change in
    magnetic field -> fMRI BOLD signal
  • Very good spatial resolution (millimeters)
  • Ok temporal resolution (seconds)
19
Q

Meaning in the brain

A
  • Mitchell et al. (2008)
  • Concepts are represented by highly distributed patterns of activation across the brain
  • Perceptual and motor brain areas involved in representing meaning
  • The association between concepts (as measured by co-
    occurrence of words) can be used to predict brain activation for those concepts