Introduction
The following exercise is a case study of a woman (‘HW’) who was studied by Bastiaanse (Reference Bastiaanse1995). HW developed Broca's aphasia following a cerebrovascular accident (stroke) in August 1986. Aphasia is a common post-stroke sequela, which has been reported to occur in 30% of patients with first-ever ischaemic stroke (Engelter et al., Reference Engelter, Gostynski, Papa, Frei, Born, Ajdacic-Gross, Gutzwiller and Lyrer2006) and 34.8% of sub-acute stroke patients (Hoffmann and Chen, Reference Hoffmann and Chen2013). Broca's aphasia is the most common subtype, accounting for 27.2% of all aphasias in a large, sub-acute stroke population (Hoffmann and Chen, Reference Hoffmann and Chen2013). The case study is presented in five sections: history and initial assessment; assessment 15 months post-onset: part 1; assessment 15 months post-onset: part 2; focus on spontaneous speech: part 1; and focus on spontaneous speech: part 2.
History and initial assessment
HW is a right-handed woman and native speaker of Dutch. She is married and has two children, a 15-year-old son and a 12-year-old daughter. Prior to her stroke, HW did cleaning two mornings a week and was a ‘reading mother’ at a primary school. Her hobbies were reading, needlework and fishing. With the exception of a hearing impairment on the left side, HW was healthy prior to her stroke.
In August 1986, HW experienced sudden paralysis on the right side. She was aphasic and was hospitalised in an unconscious state. Upon regaining consciousness, HW was unable to speak. Her right limbs were paralysed and her vision was also impaired. A CT scan was conducted two weeks post-onset. It revealed an ischaemic infarct in parts of the temporal and frontal lobes, with damage extending to the left parietal lobe. At one month post-onset, HW was discharged from hospital and admitted to a rehabilitation centre. Her right arm was still not functional. However, the paresis of her right leg had decreased with the result that she was able to walk using a delta-stick.
At four months post-onset, HW underwent linguistic and neuropsychological assessment as an inpatient of the rehabilitation centre. It revealed that HW was suffering from a typical Broca's aphasia. HW displayed relatively intact comprehension of spoken language – her score on the Token Test was 56/61. Neuropsychological assessment revealed that HW had poor verbal memory due to retrieval deficiencies – she had a percentile score of 50 compared to aphasics. HW scored in the 7th decile compared to other aphasics on the Raven Coloured Progressive Matrices. No other neuropsychological deficits were found. In an attempt to improve HW's language abilities and help both her and her family cope with her aphasia, HW received speech therapy five times a week. Her language therapy focused on sentence construction, writing and text comprehension, using a programme for training sentence construction. HW also received physiotherapy, occupational therapy and the assistance of a social worker.
Unit 25.1 History and initial assessment
(1) HW sustained an ischaemic stroke. Which of the following are true claims about ischaemic stroke?
(2) HW experienced an unspecified visual impairment following her stroke. Which CT finding might account for this impairment?
(3) HW's linguistic assessment revealed that she had a typical Broca's aphasia. Which of the following are features of this type of aphasia?
(4) Which of the features identified in (3) above is explained by the neuropsychological finding that HW has poor verbal memory?
(5) HW received speech therapy not only to improve her language skills but also to help her and her family cope with aphasia. Today, the management of aphasia places considerable emphasis on the psychosocial aspects of the condition. Describe in brief the psychosocial implications of aphasia.
Assessment 15 months post-onset: part 1
At 15 months post-onset, a further assessment of HW's linguistic and neuropsychological abilities was performed. A percentile score of 100 was obtained on a verbal memory test. HW had a score comparable to an IQ of 110 on the Raven Standard matrix. Comprehension of nouns was intact at the previous assessment and was not examined again. Comprehension of verbs was assessed using a test in which HW had to select one of four action pictures. Alongside the correct picture, there are three semantically related distractors. HW displayed 100% correct performance on this assessment. A Dutch version of the Test for Reception of Grammar (TROG; Bishop, Reference Bishop1983) was used to assess HW's auditory comprehension of sentences. There were only two errors committed on this test. One error concerned the single–plural distinction of nouns, while the other error involved an embedded sentence. HW got 28 of the 30 items on the Token Test correct. Spontaneous speech was analysed and will be considered in units 25.4 and 25.5. HW named all 40 items correctly on the Dutch version of the Boston Naming Test (Kaplan et al., Reference Kaplan, Goodglass and Weintraub1983). HW's ability to retrieve low-frequency words was assessed using the Graded Naming Test (McKenna and Warrington, Reference McKenna and Warrington1983). HW named 15 of 30 items correctly, a score which is comparable to that of normal controls. Errors included circumlocutions and wrong interpretations of the picture. In a test of naming actions, HW named 37 out of 40 actions correctly. She used the infinitive form of verbs to name the actions. The three verbs which she could not name were: to carpenter (HW: to strike the nail into the plank), to moor (HW: to hang the boat on the hook) and to dig (HW: the man polders, the man shovels out the land, shovels hole).
Unit 25.2 Assessment 15 months post-onset: part 1
(1) How would you characterise HW's single-word and sentence-level comprehension? Provide evidence to support your answer.
(2) HW was unable to name items like pagoda and centaur on the Graded Naming Test. Is this likely to be on account of a word-finding difficulty? Justify your response.
(3) One of the items that HW failed on the TROG involved an embedded sentence. Which of the following items from the TROG was in error for HW?
(4) HW was unable to produce the names of the actions to carpenter, to moor and to dig. What type of linguistic behaviour occurs during HW's response to these actions?
(5) During the Graded Naming Test, HW produced the response ‘soldier in former days’ for the test item yashmak (the name of the face veil worn by Muslim women in public). This error may simply reflect the fact that yashmak was not part of HW's pre-morbid vocabulary. However, there is another possible explanation of this error. What is this explanation?
Assessment 15 months post-onset: part 2
The repetition of single words and sentences was also assessed at 15 months post-onset. HW's repetition of words was intact. There was a slight impairment of sentence repetition, particularly in longer sentences. For example, when asked to repeat In the classroom all children were talking aloud, HW said ‘In the classroom all children talk loud’. To test sentence construction, a sentence anagram test and a subtest of the Aachen Aphasie Test (Graetz et al., Reference Graetz, De Bleser and Willmes1992) were used. The anagram test was performed with little difficulty. In the Aachen Aphasie Test, the items used and HW's responses were as follows:
Unit 25.3 Assessment 15 months post-onset: part 2
(1) HW's word and sentence repetition skills are much stronger at 15 months post-onset than they were when HW was first tested. What aspect of HW's neuropsychological performance at 15 months post-onset might account for this improvement?
(2) What class of words (open- or closed-class) are most compromised during sentence repetition for HW? Provide evidence to support your answer.
(3) During sentence construction, repetition occurs frequently. Which grammatical structure within the sentence appears to be vulnerable to repetition? Is there any evidence that HW may be using repetition to correct her output?
(4) A number of other anomalies occur during sentence construction. These are listed below. Give one example of each anomaly in the data:
Focus on spontaneous speech: part 1
At 15 months post-onset, an assessment of HW's spontaneous speech was also conducted. Extracts of HW's spontaneous speech will be examined in detail in units 25.4 and 25.5. In the extract below, the interviewer (INT) and HW are discussing HW's language problems
INT: Can you tell me what are your problems?
HW: Er talking problem yes but forming difficult sentences easy when no easy when first not er difficult words er to think yes doesn't soon occur to me
INT: You have problems finding the words?
HW: Yes yes
INT: But, as I understand, you also encounter problems when making a sentence?
HW: Yes it doesn't come at moment when I write er goes that er slow er no
HW: Yes before the time I did know writing down er I write down nothing remembers me
INT: Yes, but when you really want to, can you speak in correct sentences?
HW: Yes
INT: Why don't you do that?
HW: Er too fast to talk
INT: What do you mean, too fast?
HW: Er I too fast to talk er I cannot er search for words
INT: Yes, when you talk in sentences, you can't look for words?
HW: No
INT: And looking for words, is that difficult too?
HW: Yes
INT: That's why you talk in short sentences?
HW: Yes the a and I leave out I just leave er
INT: Do you do that on purpose?
HW: No on God no
INT: That happens automatically?
HW: Yes I hear always what I says sentences quick I hear er and the I hear er always er what I says wrongly
INT: You do hear that?
HW: Yes yes
Unit 25.4 Focus on spontaneous speech: part 1
(1) Notwithstanding her expressive difficulties, HW is able to comprehend a range of the interviewer's utterances. Several of these utterances are described below. Provide one example of each of the following in the extract:
(2) The interviewer uses several utterances that contain demonstrative pronouns. Is HW able to establish the referents of these pronouns? Provide five examples to support your response.
(3) When HW describes her language problems to the interviewer, she makes extensive use of mental state language. Give three examples of the use of mental state language in HW's expressive output. The use of this language suggests that a certain cognitive capacity is intact in HW. What is the name of this capacity?
(4) Apart from HW's admission that she has word-finding problems, what other evidence is there that HW has difficulties with this aspect of language?
Focus on spontaneous speech: part 2
In this lengthier extract, also recorded at 15 months post-onset, the interviewer and HW are discussing Christmas and HW's new house.
INT: Okay, something else, it will soon be Sinterklaas and Christmas
HW: Yes yes
INT: Do you have any plans?
HW: Yes no plans not not Sinterklaas shopsbusiness me purse always empty future no past er
INT: Won't you celebrate Sinterklaas?
HW: No absolutely
INT: Don't you do anything?
HW: In the pan tasty things snacks tasty
INT: But no presents?
HW: No no
INT: And at Christmas and New Year's Eve, are you going to do something?
HW: Er eat tasty things presents Christmas draw numbers all er get presents ten guilders ten guilders each
INT: You are not going out?
HW: I don't know
INT: You don't know
HW: No we sold house our house new about March er er we saving pennies
INT: Yes, I can imagine. Where did you buy a house?
HW: In G. M-straat centre of G. the middle in G. ah beautiful place puh
INT: Where do you live now?
HW: G.
INT: You live in G. already?
HW: Yes outskirts of G. near D.
INT: The house you bought, what does it look like?
HW: New building subsidised beautiful house oh dear
INT: Tell me
HW: Yes beautiful house magnificent from the outside windows extremely beautiful house
INT: And what size is it?
HW: Er room er ninety meters no
INT: No, that seems very large
HW: No nine meters all thresholds gone oh nice
INT: And how many floors does it have?
HW: Er three ground floor first bed-rooms two shower
INT: Three floors, upstairs two bedrooms
HW: Yes and an attic a bed-room Reinier row about I want in the attic Renate no I want in the attic
INT: And who is going to the attic?
HW: Reinier
INT: That is the oldest one, isn't it?
HW: Yes yes
INT: Do you have a bedroom downstairs yourself?
HW: No upstairs I can walk on the stairs
INT: Is there also a garden?
HW: Ah big one big one behind the house fifteen meters width seventeen no seven meters
INT: That's nice
HW: Yes nice
INT: Is it brand new?
HW: Yes built now
INT: So there is nothing in the garden yet?
HW: No now tiles on roof
INT: So you will have a bare garden
HW: Yes er ah future eh trees apple-trees ah delicious pear-trees pears
INT: Yes, you want to plant trees
HW: Yes blossoms beautifully oh magnificent new trees small trees
INT: You are going to move in May?
HW: No er about March new house delivered extremely beautiful
INT: You are glad with it, aren't you?
HW: Oh beautiful
INT: Were you eager to move?
HW: Yes
INT: What kind of house did you have?
HW: Old house about after the no war built block
Unit 25.5 Focus on spontaneous speech: part 2
(1) In this extract, HW provides the interviewer with some contradictory information. Identify two instances where this occurs.
(2) Substitution confers cohesion on conversation and other forms of discourse. Can HW comprehend the use of substitution by the interviewer? Can HW use substitution appropriately in her own utterances? Provide evidence to support your answers.
(3) At one point in this extract, HW uses direct reported speech. Where does this occur, and why is it used?