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PSY 369: Psycholinguistics

PSY 369: Psycholinguistics. Language Production: Introduction. Announcements. Homework 7 (Due April 22)

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PSY 369: Psycholinguistics

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  1. PSY 369: Psycholinguistics Language Production: Introduction

  2. Announcements • Homework 7 (Due April 22) • Try to be vigilant for four or five days in noting speech errors made by yourself and others. Write each slip down (carry a small notebook and pencil with you). Then, when you have accumulated a reasonably size sample (aim for 20 to 30, but don't panic if you don't get that many), try to classify each slip in terms of • the unit(s) involved • the type of error • Remember that each error may be interpreted in different ways. For some of them, see if you can come up with more than one possibility.

  3. Some of the big questions • Production forms half of language ability: • Input to comprehension • More difficult problem than comprehension? • Developmental lag • Learning a second language “the horse raced past the barn”

  4. What we don’t do Dr. C: How much money is there in my current account and in my deposit account? <SILENCE> Dr. C: Hello? <SILENCE> Computer: Colourless green ideas sleeeeeep furiously. Dr. C: How much money is there in my current account and in my deposit account? <SILENCE> Computer: Your current a-ccount encompasses two hundred dollars. I cannot access how..<SILENCE>.. in your deposit account money much is there.

  5. Undesirable features • Meaningless and irrelevant content. • Long silences, strange pausing. • Infelicities of vocabulary and structure: • ‘Your current account encompasses $200’ • ‘I cannot access how in yourdeposit account money much is there.’ • Strange intonation and pronunciation: • ‘Your current a-ccount’ • ‘Sleeeeeep’

  6. What we do do • Expressing non-ordered conceptual message via ordered array of sounds. • Start with a message (idea) and partition it, sequence it, and articulate it • Speakers must produce utterances with: • Appropriate meaningful content, lexical items, syntax, & pronunciation, intonation, and phrasing. • And they must do this fluently, in real time.

  7. Getting the form right • Hearers: • Details of form can sometimes (often?) be ignored (e.g. missing words, not paying attention). • Speakers: • Have to get every aspect of the form right, whether or not germane to message.

  8. Getting the content wrong • Paradox: Adept at getting form right but content wrong: • Subject-verb agreement errors The report about the firesare very long • Less than 5% errors in experiment designed to elicit them (Bock & Miller 1991).

  9. Getting the content wrong • Paradox: Adept at getting form right but content wrong: • Serious structural anomalies (unparseable) I cannot access how in your deposit account money much is there. • 0.5% utterances (Deese 1984).

  10. Getting the content wrong • Paradox: Adept at getting form right but content wrong: • Sound/word errors Can you put the desk back on my book when you’ve finished with it? It’ll get fast a lot hotter if you put the burner on. • Garnham et al 1982: • Sound errors 3.2/10,000 words • Word errors 5.1/10,000 words

  11. Methodologies • Production is intrinsically more difficult subject to study than language comprehension • Not susceptible to experimental study? • Yes it is, but requires careful and clever methods • Historically: observational methods • Recently: experimental methods

  12. What’s the problem? • Comprehension: • Can control input precisely • Moving from language to conceptual representation • Production: • How do we control input? • Moving from (unobservable) conceptual representation to language • BUT: end product is observable in production but not comprehension

  13. Common Measures • What people say: • Under which circumstances do they produce particular words, utterances etc • May be intended, or may be errors • How frequently do they do this • Time course: • How quickly do people produce language • Neurophysiological: • How is language production represented in the brain?

  14. Fluent speech: • Sentence types, verb forms, prosodic markers, etc (Deese, 1984) • Distribution of extraposed structures (Arnold, et al., 2000) – • “Sandy picked the freshly baked apple pie up.” vs. • “Sandy picked up the freshly baked apple pie.” • Distribution of thuh vs thee (Clark & Fox-Tree, 1997) Methodologies: Observational • Naturally occurring speech

  15. Disfluent speech: • Scope of utterance planning (Ford & Holmes, 1978; Beattie, 1983) • Error detection and correction (Levelt, 1983) • Distribution of “um”& “uh”(Clark & Fox-Tree, 1997) Methodologies: Observational • Naturally occurring speech

  16. "The law I sign today directs new funds and new focus to the task of collecting vital intelligence on terrorist threats and on weapons of mass production.”George W. Bush • "There's an old saying in Tennessee - I know it's in Texas, probably in Tennessee - that says, fool me once, shame on—shame on you. Fool me—you can't get fooled again." George W. Bush • "For seven and a half years I've worked alongside President Reagan.We've had triumphs. Made some mistakes. We've had some sex ... uh...setbacks.” George Bush Sr. Methodologies: Observational • Naturally occurring speech errors

  17. Picture naming & description Name these pictures “swan”

  18. Picture naming & description Name these pictures “swing”

  19. Picture naming & description Describe the action in this picture “The girl is throwing a ball to the boy” “The girl is throwing the boy a ball”

  20. Picture-word interference task Name the picture (While ignoring the word) tiger

  21. Neurophysiological Measures • Recent technological developments allow research on neurophysiological aspects of production. • ERPs, fMRI, PET, • Which areas of the brain are involved? • What is the time course of processing? • Are different areas/processes/timecourses associated with different aspects of production?

  22. Brief summary • Language production research • Speaker has different problems than the comprehender • Paradox: when errors are made form rather than meaning is often preserved • What errors tell us about correct speech • Observational and experimental approaches

  23. Reverend Dr. William Archibald Spooner, 1844-1930. Lecturer, tutor, and dean at Oxford university famous for speech errors Some famous examples: Speech Errors -”Spoonerisms” Nosey little cook FOR ...Cosy little nook Cattle ships and bruisers FOR ...Battle ships and cruisers ..we’ll have the hags flung out FOR ... ..we’ll have the flags hung out FOR ... .. you’ve wasted two terms you’ve tasted two worms” kisstomary to cuss the bride. FOR ...customary to kiss the bride

  24. Speech errors • What errors tell us about correct speech: • How are speech errors collected? • Observational and experimental approaches • What can we learn from speech errors? • Classifications and examples of speech errors?

  25. Speech errors • How are speech errors collected? • Observational approaches • Collected from natural speech, listen for them and write them down. Most accurate way is to record speech samples and carefully study them later. • Some of these collections: Freud (1958), Meringer & Mayer (1895), Fromkin (1971), Fay & Cutler (1977), Garnham et al (1981) • Experimental approaches • SLIP technique: Motley and Baars (1976)

  26. Freudian slips • Freudian approach • Held that speech errors “arise from the concurrent action - or perhaps rather, the opposing action - of two different intentions” • Intended meaning + disturbing intention  speech error • The psycholinguistic approach • Assume that “the mechanics of slips can be studied linguistically without reference to their motivation.” (Boomer and Laver, 1968)

  27. Freudian slips “In the case of female genitals, in spite of many versuchungen [temptations] - I beg your pardon, versuche [experiments]…” From a politician “I like Heath. He’s tough - like Hitler - (shocked silence from reporters) - Did I say Hitler? I meant Churchill.” • Are these cases of disturbing intentions or merely cases of lexical substitution (phonologically or semantically related words)?

  28. Freudian slips • Ellis, (1980) • Of the 94 errors listed in Freud’s Psychopathology of Everyday Life, 85 were made in normal speech. • 60% involved lexical substitution in which the substituting word was either similar in phonological form (27) to the intended word or related in meaning (22).

  29. Freudian slips • Ellis, (1980) • Of the 94 errors listed in Freud’s Psychopathology of Everyday Life, 85 were made in normal speech. • Only 10/94 of the errors reported by Freud were spoonerisms, and 4 were from Meringer and Mayer, 1895 (an early, linguistically oriented study). • E.g. Eiwess-scheibchen (“small slices of egg white”) Eischeissweibchen (lit. “egg-shit-female”) • Alabasterbüchse (“alabaster box”) Alabüsterbachse (büste = breast)

  30. Freudian slips • Ellis, (1980) • Conclusion: it appears that “Freud’s theory can be translated into the language of modern psycholinguistic production models without excessive difficulty.” • Of the 94 errors listed in Freud’s Psychopathology of Everyday Life, 85 were made in normal speech.

  31. Speech error regularities • What can we learn from speech errors? • Logic: how the system breaks down, tells us something about how it works • Speech can go wrong in many ways • Different sized units can slip • The ways that they go wrong are not random • Look for regularities in the patterns of errors • It is not always easy to categorize errors Recommended reading: Um… Slips, Stumbles, and Verbal Blunders, and What they Mean, by Michael Erard (2007)

  32. Speech errors • Classifications and examples of speech errors? Shift:one segment disappears from its appropriate location and appears somewhere else. The thing that shifts moves from one element to another of the same type ..in case she decideFOR ...in case she decides to hits it. to hit it “a maniac for weekends.” FOR“a weekend for maniacs.” Also see table 13.1 in textbook

  33. Speech errors • Classifications and examples of speech errors? Exchange: in effect double shifts, since 2 linguistic units change places You have hissed all my mystery lectures FOR .. You have missed all my history lectures your model renosed. FOR ..your nose remodelled.

  34. Speech errors • Classifications and examples of speech errors? Anticipation: in anticipation of a forthcoming segment, we replace an earlier segment with the later segment It's a meal mystery FOR .. It's a real mystery ..bake my bike. FOR .. take my bike.

  35. Speech errors • Classifications and examples of speech errors? give the goy FOR .. give the boy Perseverance: an earlier segment replaces a later one (while also being articulated in its correct location) ..he pulled a pantrum. FOR ..he pulled a tantrum.

  36. Speech errors • Classifications and examples of speech errors? I didn’t explain it clarefully enough Addition: something is added to the target utterance FOR I didn’t explain it carefully enough.

  37. Speech errors • Classifications and examples of speech errors? Blends: occur when more than one word is being considered, and the two blend into a single item didn’t bother me FOR didn’t bother me in the sleast. in the least/slightest.

  38. Speech errors • Classifications and examples of speech errors? Deletion: something is omitted ..mutter intelligibly. FOR ..mutter unintelligibly.

  39. Speech errors • Classifications and examples of speech errors? Substitutions (malapropisms): when one segment is replaced by an intruder, but this differs from the other types of errors since the intruder may not occur at all in the intended sentence “Jack” is the presidentFOR “Jack” is the subject of the sentence. of the sentence. I’m stutteringFOR I’m studying psycholinguistics. psycholinguistics.

  40. Speech errors • Frequency of units in errors • Different sized units can slip • Suggestions of “building blocks” of production Estimates of frequencies of linguistic units in exchange errors (Bock, 1991) Sentence Phrase Word Morpheme > Syllable Syllable VC or CV Cluster Phoneme Feature 10% 20% 30% 40%

  41. Speech error regularities • What can we learn from speech errors? • From this we can infer that: • Speech is planned in advance. • Accommodation to the phonological environment takes place (plural pronounced /z/ instead of /s/). • Order of processing is • Selection of morpheme  error  application of phonological rule • If we look at the shift error “a maniac for weekends.” FOR“a weekend for maniacs.”

  42. Speech error regularities • What can we learn from speech errors? • Stress exchange: econ 'om ists FOR e ’con omists • From this we can infer that: • Stress may be independent and may simply move from one syllable to another (unlikely explanation). • The exchange may be the result of competing plans resulting in a blend of • e ’con omists and econ 'omics.

  43. Speech error regularities • What can we learn from speech errors? • Is this a double substitution (/b/ for /p/ and /t/ for /d/)? • /p/ and /t/ are vocieless plosives and /b/ and /d/ voiced plosives • Better analysed as a shift of the phonetic feature voicing. • “bat a tog”FOR“pat a dog” • From this we can infer that: • Indicates that phonetic features are psychologically real - phonetic features must be units in speech production.

  44. Speech error regularities • What can we learn from speech errors? • Consonant-vowel rule: consonants never exchange for vowels or vice versa • Suggests that vowels and consonants are separate units in the planning of the phonological form of an utterance. • Errors produce legal non-words. • Suggests that we use phonological rules in production. • Lexical bias effect: spontaneous (and experimentally induced) speech errors are more likely to result in real words than non-words. • Grammaticality effect: when words are substituted or exchanged they typically substitute for a word of the same grammatical class • Observed regularities

  45. Speech error regularities • What can we learn from speech errors? • That speech is planned in advance - anticipation and exchange errors indicate speaker has a representation of more than one word. • Substitutions indicate that the lexicon is organised phonologically and semantically. Substitutions appear to occur after syntactic organisation as substitutions are always from the same grammatical class (noun for noun, verb for verb etc.). • External influences - situation and personality also influence speech production. • Implications for theories of language production

  46. Problems with speech errors • Not an on-line technique. • We only remember (or notice) certain types of errors. • People often don’t (notice or) write down errors which are corrected part way through the word, e.g. “wo..wring one”.

  47. Problems with speech errors • Even very carefully verified corpora of speech errors tend to list the error and then “the target”. • However, there may be several possible targets. • Saying there is one definitive target may limit conclusions about what type of error has actually occurred. • Evidence that we are not very good at perceiving speech errors.

  48. Did you hear what he said?! • The tapes were played to subjects whose task was to record all the errors they heard. Problems with speech errors • How well do we perceive speech errors? • Ferber (1991) • Method: • Transcripts of TV and radio were studied very carefully to pick out all the speech errors. • The errors spotted by the subjects were compared with those that actually occurred.

  49. Problems with speech errors • How well do we perceive speech errors? • Ferber (1991) • Results: • Subjects missed 50% of all the errors • And of the half they identified • 50% were incorrectly recorded (i.e. only 25% of speech errors were correctly recorded). • Conclusion: We are bad at perceiving errors.

  50. Experimental approaches • Not prey to same problems as observational studies: • Reduces observer bias • Isolates phenomenon of interest • Increases potential for systematic observation • Different problems! • How to control input and output? • Input: ecological validity problem (‘controlling thoughts’) • Output: controlling responses: • Response specification - artificiality • ‘Exuberant responding’ – loss of data

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