Presentation is loading. Please wait.

Presentation is loading. Please wait.

Using discourse measures to describe aphasia Alison Ferguson.

Similar presentations


Presentation on theme: "Using discourse measures to describe aphasia Alison Ferguson."— Presentation transcript:

1 Using discourse measures to describe aphasia Alison Ferguson

2 Describing aphasic output Fluent ‘Empty speech’ Press of speech Phonemic paraphasias Neologisms Jargon Paragrammatism Non-Fluent Content > function words Effortful ‘telegraphic’ Agrammatism Information proportional to fluency

3 Why ‘measure’? Prognosis  Recovery  Response to treatment Activity Social Participation Impairment

4 Assessment Methods DecontextualisedContext manipulatedCONTEXT

5 Assessment Methods ElicitedNaturalSAMPLE

6 Assessment Methods word, phrase, clause discourseLEVEL OF LANGUAGE

7 Assessment Methods quantitativequalitativeDESCRIPTION

8 Basic discourse measures Field Informative- ness Quantity Duration (elapsed time min:sec) Total completed words Total utterances Total turns Mean turn length in words Quality Lexical diversity – TTR (# diff word roots, total main body words) Grammatical intricacy (average # clauses per utterance) Tenor Speaker roles, workload Collaboration Questions (#, %) Responses to questions (#, %) Interactive Repair (# Prompts, # Appeals for assistance) Mode How was language used? Efficiency Words/minute (complete & intelligible utterances) Utterances with Mazes (#, %) Abandoned Utterances (#, %) Channel Total Communication (describe)

9 Systematic Analysis of Language Transcripts – V.8 (Miller, 2004)

10 Automatised analyses

11 Example of Automatised Analysis

12 Preliminary outcomes

13 Fluent vs Non-Fluent Grammatical Intricacy

14 Fluent vs Non-fluent Efficiency ( Complete & Intelligible Utterances per min)

15 Concurrent validity – TTR & communicative effectiveness

16 Basic discourse measures Field Informative- ness Quantity Duration (elapsed time min:sec) Total completed words Total utterances Total turns Mean turn length in words Quality Lexical diversity – TTR (# diff word roots, total main body words) Grammatical intricacy (average # clauses per utterance) Tenor Speaker roles, workload Collaboration Questions (#, %) Responses to questions (#, %) Interactive Repair (# Prompts, # Appeals for assistance) Mode How was language used? Efficiency CIU/minute (complete & intelligible utterances per minute) Utterances with Mazes (#, %) Abandoned Utterances (#, %) Channel Total Communication (describe)

17


Download ppt "Using discourse measures to describe aphasia Alison Ferguson."

Similar presentations


Ads by Google