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Revista CEFAC

On-line version ISSN 1982-0216

Rev. CEFAC vol.16 no.1 São Paulo Jan./Feb. 2014 

Original Articles

Augmentative and alternative communication repercussion on non-fluent aphasia

Mariana Mendes Bahia1 

Regina Yu Shon Chun2 

1Universidade Estadual de Campinas – UNICAMP, Campinas, São Paulo, Brasil.

2 Curso de Graduação em Fonoaudiologia e do Mestrado Profissional Saúde, Interdisciplinaridade e Reabilitação da Universidade Estadual de Campinas – UNICAMP, Campinas, São Paulo, Brasil.



: verify the communication forms and linguistic-cognitive performance of aphasics from an Augmentative and Alternative Communication (AAC) perspective and to evaluate their perception.


: this is a longitudinal research with qualitative approach, approved by the Ethic and Research Committee. The sample includes 5 non-fluent subjects with aphasia. Data was collected analyzing the subjects’ files, video records of speech and language therapy focused on AAC, and the subjects opinions about it.


: subjects used several ways of communication to express themselves as well as increased their use of AAC. In doing so, they demanded less gestures support during the study, which facilitated their communication and diminished guessing and frustrated conversation attempts. The use of AAC resulted in the increase of oral production. Subjects referred that they enjoyed using AAC and that it contributed to their communication in some way.


: results showed that AAC support contributed to subjects so they could assume their position as speakers, overcoming their language difficulties. Therefore it has facilitated them to assume themselves as linguistic and social subjects. Dialogic and contextualized activities, as well as the interlocutor mediation, facilitated the process of (re)signification of their enunciations. Therefore, regarding this context, AAC is an important support that mediates and facilitates the linguistic process on non-fluent aphasias with repercussions on oral production.

Key words: Aphasia; Communication Aids for Disabled; Language; Speech, Language and Hearing Sciences



: verificar as formas de comunicação e desempenho linguístico-cognitivo de afásicos a partir da Comunicação Suplementar e/ou Alternativa (CSA) e conhecer sua percepção.


: pesquisa de abordagem qualitativa de corte longitudinal, aprovada pelo CEP, com amostra de 5 sujeitos afásicos não fluentes. A coleta de dados ocorreu por meio dos prontuários dos sujeitos, registros em vídeo do acompanhamento fonoaudiológico com a CSA e dos seus depoimentos acerca da utilização da CSA.


: os sujeitos utilizam diversas formas de comunicação para se expressar além de fazerem maior uso da CSA, necessitando menor apoio de gestos próprios ao longo do estudo, o que facilitou a comunicação com o outro e diminuiu o uso de adivinhações e tentativas frustradas de conversas. O uso da CSA repercutiu no aumento da produção oral. Os sujeitos referem gostar de utilizar os recursos da CSA e que estes contribuem de alguma forma na sua comunicação.


: os resultados evidenciam que o apoio da CSA contribui para que os sujeitos estudados pudessem assumir seus lugares como falantes, superando suas dificuldades de linguagem. Deste modo, favoreceu que eles se colocassem como sujeitos linguísticos e sociais. As atividades dialógicas e contextualizadas, bem como a mediação do interlocutor, favoreceram o processo de (re)significação de seus enunciados. Portanto, a CSA, nesse contexto, mostra-se como importante recurso mediador e facilitador do processo linguístico nas afasias não fluentes com repercussão na produção oral.

Palavras-Chave: Afasia; Auxiliares de Comunicação para Pessoas com Deficiência; Linguagem; Fonoaudiologia


The Chronic Noncommunicable Diseases (NCDs) are the worldwide leading cause of death, accounting for 63% of the 57 million deaths in 2008, according to the World Health Organization – WHO1. Regarding the deaths caused by NCDs, cardiovascular diseases account for 48%, followed by cancer (21%) and chronic respiratory diseases (12%)1. Furthermore, over 9 million of those deaths are related to individuals under 60 years and could have been prevented1.

Over the last few decades, the NCDs have also become the leading cause of death in Brazil2. They are responsible for 74% of deaths, having cardiovascular diseases alone accounting for 33% of this total1. Among the cardiovascular diseases, stroke is currently the second leading cause of death worldwide and the first in Brazil3-5, representing, thus, a serious public health issue6. It is also considered the leading cause of physical disability in adulthood7. Dependence and inability to perform daily tasks occur due to several sequelae resulting from stroke, which could be physical, functional, emotional and/or communicative. The sequela severity depends on the type, location and extent of the injury.

Language disorders account for the greatest functional impairment among all the possible sequelae following a stroke8. Moreover, stroke is responsible for 58% of language disorders, and patients who have had stroke may develop serious linguistic and cognitive disorders8. It is estimated that 40% of patients with acute stroke have aphasia. Half of those patients still present language disorders during the chronic phase11, which requires intervention and rehabilitation.

This study focus on aphasia, a language disorder related to comprehension and/or expression and similar language processes. Specifically, we address the aphasia impacts on various aspects of subjects’ life. Aphasia not only affects language, but also interferes with its related processes, such as practical life and social and affective relationships9. Moreover, it can also impact interactive and interpretive relations9,10.

We focus on non-fluent aphasia, one of the aphasia categories. Non-fluent aphasia patients present fragmented phrases with paraphasias, prolongation of sounds, difficulties in deployment and coordination and execution of phono-articulatory movements12. For this reason, it is important to acknowledge the linguistic constructions of the aphasics speech, as well as the social context, the interaction and how they use language10,12,13. Therefore, during the (speech and language) therapeutic follow-up of aphasia, it is important to examine the conditions of oral and non-oral discourse production, taking into account dialogues and narratives in a dialogical and contextual perspective beyond an understanding of the social individual participating in the (re) constitution of his language.

According to some authors14, aphasics often do not improve their condition as a result of clinical follow-up and these efforts may be insufficient for language evolution. In those cases, the Augmentative and Alternative Communication (AAC) is as a therapeutic possibility13,15 – 17.

AAC is a tool for language mediation, which favors language itself, the (re) constitution of subjects with language disorders, and quality of their interaction13. It can be understood as a clinical and educational approach that aims to support, complement, supplement/augment, or replace the production and verbal interpretation forms of non-speaking subjects or of subjects with extreme language difficulties13. Some authors15,18,19 explain that AAC can assist individuals with language impairments, such as aphasia, to express their messages and needs (written or spoken) in a more efficient way. Consequently, AAC favors autonomy, linguistic competency, and social interactions.

Given the above, it is interesting to investigate the impact of the use of AAC in assisting the language processes of non-fluent aphasic subjects. The overall objectives are to verify the communication forms and the linguistic-cognitive performance of the subjects in a speech and language therapy implementing AAC, and to evaluate their perception regarding the resources of AAC. The specific objectives are: a) to acknowledge the communication forms used before and after implementation of AAC; to analyze the linguistic and cognitive performance on the aspects of oral and written production, use of gestures, understanding and use of AAC resources, and need for help and mediation after the implementation of AAC; and c) evaluate the subjects’ perception of communication and AAC use.


This is a qualitative, longitudinal research. Its corpus is composed of 5 non-fluent aphasics from the Group II of the Aphasia Center (CCA – IEL / UNICAMP), who participated in the AAC speech and language therapy. The subjects (or their legal guardian) agreed to participate by signing a Free and Clarified Consent Term. This study was approved by the UNICAMP Ethics in Research Committee.

The subjects were selected based on their oral language impairment and their interest in using AAC.

Data were gathered from three sources:

a) institutional records, to characterize the subjects based on their aphasia history, cognitive-linguistic conditions, and use of AAC resources;

b) video recordings of the AAC speech and language therapy, to analyze language aspects of the subject after using AAC, taking into account the use of communication forms – oral and written language, own gestures, facial expressions, AAC resources, and need for assistance and mediation. The videos were recorded during a period of 27 month (03/2007 to 06/2009), accounting for 50 meetings. Of these meeting, we selected 19 for transcription, according to the research objectives;

c) subjects’ reports about communication and AAC use. For this purpose, we used a communication board with Pictographic Communication System (PCS) symbols.

The speech and language therapy occurred in 60-minute weekly meetings, conducted by the researchers and volunteers (undergraduate students from the Speech and Language Graduation Course at UNICAMP). We elaborated communication boards for each subject, including PCS symbols. The PCS was used because its symbols are easily recognizable and have a Portuguese version, and also because this system is the most commonly used in Brazil.

Additionally, we conducted contextualized activities from a discursive perspective, in order to attribute meaning to the production forms of the subjects. In these activities, we sought to value the facts and situations brought by the participants, such as their personal life story, news, songs, poems, recipes, games, and other activities of interest for the group13. During these activities, we offered PCS symbols related to the themes of the meeting.

The transcription of the selected episodes follows the Neurolinguistic Database coding system20. Data are presented according to the row number, speaker’s identification, orthographic transcription, observation on the verbal meaning processes, observation on the nonverbal meaning processes, and an additional column with observations on the AAC meaning processes. It is also relevant to mention that, since all therapy was conducted in Portuguese, in this paper we present a free translation adapted from the original transcriptions. In Figure 1 we show the transcription markings:

Figure 1 – Transcription markings 

The subjects’ reports were guided by the following questions:

  1. How do you talk to people about what you want?

  2. Do you think the communication board and the symbols can help you to communicate with others?

  3. What activities do you like to perform with help of the communication board and the symbols?


The results are presented in three parts: characterization of subjects, impact of AAC on language, and reports about their use of AAC as a communication tool.

Brief characterization of the subjects and the use of AAC

Subject 1 (S1)

59 years old, male, divorced, construction worker. He had four stroke episodes in a period of four years, presenting right hemiplegia and global aphasia. The subject has limited oral communication and verbal and gestural stereotypies during speech, such as “opa”, and a circle gesture with his hands. According to his sister and caregiver, S1 does not participate in family celebrations and other events requiring exposition. He joined the AAC speech and language therapy group in 05/2006, being active and showing interested in working with AAC, especially in activities related to recalling his life story.

Subject 2 (S2)

37 years old, female, single, maid. She had two stroke episodes in a period of two and a half years, presenting the following sequelae: afferent motor aphasia, right hemiparesis, oral apraxia, and emotional lability. The subject shows reduced verbal expression and comprehension problems. According to her brother, S2 does not like attending public places and has bouts of crying and laughter. Quickly adopted AAC as a communication form, not showing difficulties in understanding the activities presented to the group. She was the latest participant to join the group, in 06/2007.

Subject 3 (S3)

50 years old, female, single, occupational therapist. She had a rupture of a cerebral aneurysm over 20 years ago, affecting the left middle cerebral artery. As sequelae, she presented efferent motor aphasia, dysarthria, and right hemiparesis. She has difficult speech sequencing and verbal stereotypies, such as “preciso falar” (I need to speak), “issau”, “ai senhor” (Oh, God) and “ótimo” (great). The subject benefits from oral and visual promptings in dialogical situations, has good comprehension and uses several means to be understood. Moreover, she likes to sing and has preserved the melodic structures of songs. She began working with the AAC in 05/2006, being very collaborative and participatory in the activities, and assisting the other participants on their difficulties.

Subject 4 (S4)

59 years old, female, married, housewife. She had a stroke in 2000, which caused efferent motor aphasia with traces of dynamic aphasia and predominantly brachial right hemiparesis. The subject shows lack of verbal initiative, requiring the other to start a dialogue and encourage interaction. She uses hand gestures and head to convey the desired message and asks her husband for help in order to make herself understood. She joined the AAC group in 05/2006 and demonstrated that she understood the proposed use for AAC, using it in her activities with no significant difficulties.

Subject 5 (S5)

67 years old, female, married, retired teacher. She had an episode of hemorrhagic stroke triggered by a hypertension crisis in 1996, causing afferent motor aphasia, oral apraxia, and dysarthria. The subject presents fragmented phrases with anomie, paraphasias and prolongation of sounds with facial, neck and body syncinesis. Furthermore, she shows great effort when speaking, accompanied by neck tension and pitched voice. The subject makes use of written communication. She started using AAC in 05/2006 and showed no difficulties in understanding and using the resources. With AAC, she built more elaborate statements, often not requiring the mediation of researchers.

Impact of AAC on language

The data extracted from the video recordings show that subjects make use of various communication forms to express the intended content, such as the use of PCS symbols, own gestures, facial expression, speech production, albeit restricted for S1 and S2, and writing, in the case of S5.

We found along the study, through the analysis of data, that the subjects made greater use of AAC and required less assistance from own gestures. Moreover, AAC facilitated communication and interaction with each other, and reduced guesswork and failed attempts to talk. Regarding the cases of S2, S3 and S5, the subjects were able to use easily the AAC resources, and, in several occasions, they could use those resources for achieving a more spontaneous communication.

S2, S3 and S4 took advantage of a visual and verbal prompting to access the desired word, since they had great difficulty in lexical access. S5 showed an adequate and more elaborate production, making use of pictures and writing to get to the spoken word.

We observed that the greater use of AAC reflected in increasing subjects’ oral production. In the case of S1, we could not notice a significant increase in oral production. However, his few speeches were very important for him due to his physical and health condition after four lesional episodes. Moreover, we observed that S1 did not show the verbal and gestural stereotypies described in previous therapeutical reports. Regarding S2, we observed increased oral production for words, which demonstrates improvement. S3 was able to produce a few simple spoken sentences with the aid of pictures and words from the AAC symbols. There were fewer verbal stereotypies which, despite the intonation and the interlocutor’s comprehension of the speaker’s intention, most often undermine the speech. S4 produced more words over time, especially with the support of the visual and verbal AAC prompting and the verbal support from the interlocutor. For S5, the use of symbols combined with oral production increased over time, since the subject uses both resources at the concurrently. She also presented greater production of oral sentences.

The subjects demonstrated to understand the proposals in therapeutic activities. S3 and S5 did not need help to perform the activities, whereas S1, S2 and S4 needed the help of others in their development. In general, the subjects kept their attention on group activities, respected the discursive topics and maintained them in dialogue. Additionally, the subjects S3 and S5 also introduced new conversational topics. S3 and S5 also helped other members of the group in their activities and encouraged them. S3, especially, gave verbal prompting for the rest of the participants.

Furthermore, we observed a decrease in the mediations of the interlocutors. However, it is noteworthy that the mediation of meanings made by others is necessary and important for assigning meanings to the actions of individuals, maintaining the dialogical game and thus favoring the language of the subject. Regarding S1 and considering his large latency time for response, the decrease in mediations provided and guaranteed him the time required to complete his statements. For S5, the mediation of the interlocutor was hardly required because she presented great language potential and, consequently, operating language. The mediations were only necessary when she had difficulties in reproducing her own production due to the apraxia.

The impacts of the use of AAC in the language of the subjects are shown by some of the most relevant episodes drawn from video recordings.

In the episode transcribed in Figure 2, the use of the AAC favored the subject’s language. Although oral production was restricted (row 7, 9, and 11), his little production assumed large significance regarding his condition. At the time, the members were presenting themselves to S2, who was joining the group. Everyone knew that S1 had been a construction worker but were unaware that he had also worked as a security guard. By using AAC, S1 was able to talk about a new fact of his life (row 4).

S2 used AAC with ease since her introduction to the group, using it spontaneously, especially in situations that she presented greater difficulty to speak (rows 15 and 17). Moreover, S2 used several resources to communicate (rows 3 and 12; 6, 8 and 10; 15 and 17) and benefits from writing and drawing to access the intended word, as shown in rows 2 and 3. The mediation of the interlocutor was important for the assignment of sense and meaning, giving more fluidity to the dialogue. By using AAC in questions, the interlocutor also facilitates the subject’s comprehension (rows 1 and 5).

In this episode (Figure 4), S3 uses multiple forms to communicate the desired content and thus keep the dialogue with her interlocutor, especially with the use of oral production (as observed in rows 4, 9, 13, 16, 18, 20, and 26), and with the use of AAC (rows 7, 11, 13, 22, and 24). Moreover, we observed that S3 relies on the interlocutor’s speech and on the symbols to access what she wants to express by oral production (rows 13 and 22 to 26). In this episode, we also noticed the presence of oral stereotypies produced by S3 (rows 11 and 28). Such stereotypies sound to the interlocutor with diverse intonations and consistent with the speech, as if they were word substitutions for what S3 failed to produce due to her difficult lexical access.

Figure 4 – S3: forming sentences with symbols (10 months after AAC introduction) 

The transcription above shows that S4 uses the AAC symbols several times (rows 2, 9, 13, 16, and 19), and these symbols work as a prompting for her to access the desired word and produce it orally, as occurred in rows 2 to 4 and 9 to 11. It is Important to consider the involvement of the researcher, who asks questions and assigns meanings to the actions of S4, building a dialogue and thus favoring the subject’s language. The subject follows the topic of discourse in row 13 by doing her shopping list, even without the presence of the researcher, and signals such action by calling the interlocutor to show a new item on the list. Moreover, we observed that S4 is assisted by the picture in giving meaning to the symbol, as shown in rows 16 to 21.

The transcription shows that S5 had no difficulty in comprehending or in using AAC to communicate. We observe that S5 used several meaning processes, such as the use of symbols and writing, to access what she wants to talk (rows 4, 8, 14, 16 and 18). With AAC, S5 was able to talk about her family and her everyday life activities in this episode. She also started new topics of conversation, for instance, telling where her brothers live (rows 20, 26, 40, and 42), about visiting them (row 52) and traveling by bus (rows 57 and 61).

Moreover, S5 used the AAC board to talk spontaneously, but gave preference to attempting oral production, as seen in this episode. Additionally, it can be seen that S5 builds oral statements, but some of her productions are hindered by praxis difficulties (rows 4, 16, 26, 40, 55, and 57).

Reports about the use of AAC

The participants’ reports concerning language and the use of AAC show that they still have difficulties to communicate with others and to express the desired content. This is evidenced by their answers to a question about how they talk to other people, in which they referred to using gestures (S2 and S3), pointing (S1) and guessing (S1, S2, S3, S4). Additionally, some answers mentioned using AAC (S1 and S5), trying to talk (S1, S3 and S5) and writing (S5). Figure 7 illustrates the answers given by S1.

Figure 7 – Answer from S1 about communicating with people 

The subjects also reported that they like to use the communication board and the AAC resources, and that it had contributed a little (S1 and S2) or much (S3, S4 and S5) in their communication with others. Some subjects needed more help than others, as indicated by S2. Also, S1 and S2 found it difficult to use the AAC resources. Figure 8 illustrates what S5 thinks about the use of AAC for communication.

Figure 8 – Answers from S5 about the use of the AAC board and symbols for communication 

The reports also show that the AAC has helped the conversation among the group and between the subjects and others. AAC has also favored the development of activities such as games (S1 and S5), construction of poetry (S1) and greeting cards (S1, S2, S3, S4 and S5), singing (S2 and S3) and recipe sharing (S3, S4 and S5). Figure 9 shows the activities that S3 enjoyed the most with the help of the ACC.

Figure 9 – Answer from S3 about which activities with the help of AAC she enjoyed the most 


Some authors21,22 discuss the use of AAC in aphasia, the correct time to start intervention and what types of aphasia can possibly benefit from this approach. They come to the conclusion that everyone with aphasia can achieve improvements by using AAC, regardless the type and degree of the impairment. This corroborates our findings, since all subjects benefited somehow from the AAC resources, even though in different levels, as shown by the transcription analysis.

Moreover, some authors21-23 assert that when aphasic subjects are unable to produce functional language, which does not meet their communication needs through speech, it is important to use other strategies. One of those strategies is AAC, which includes drawings, structured or unstructured gestures, and writing, as evidenced by our results.

The transcribed episodes show that subjects make use of various communication forms to express the desired content, for instance, the use of AAC, own gestures, facial expression, oral production, albeit restricted in cases of S1 and S2 subjects, and writing, in the case S5. We found along the study, through the analysis of data, that the subjects made greater use AAC and required less support from their own gestures, which facilitated communication with others, and avoided guessing and failed attempts at conversation. Similar findings were also reported by other authors13,17, who have considered the possibility of using different forms of language in working with aphasic, with the AAC resources providing the access to other communication forms such as oral language.

Some studies13,17,24 point out that the use of the AAC does not inhibit speech and can encourage oral language, since the use of communication facilitators allows the subjects to make themselves understood in everyday situations, which favors their expressiveness.

The results show that the support of AAC helps the subjects to assume their place as speakers13,17. In this sense, some researchers12,13 argue that, in spite of the linguistic and cognitive difficulties due to brain damage, aphasics keep their status as social subjects and, therefore, their language.

The analysis of linguistic-cognitive aspects of the studied subjects highlights the role of the other, be it a researcher or another subject. This role is especially important in discursive activities to the process of meaning and verbal interpretation in order to overcome the language difficulties related to aphasia, as evidenced by the studies following the Discursive Neurolinguistics approach10,13,16.

Working with AAC allowed greater participation of subjects in group activities, which contributed to improve their linguistic productions and social interaction. Similar results were presented in other studies13,23 showing that AAC favors linguistic-cognitive and psychological aspects, which contributes to a increased independence in communication and participation in life activities.


The results of the impact of AAC on the aphasic language, in a discursive perspective of language, allow us to better understand this theme in speech and language therapy.

We observed that the linguistic difficulties of the studied subjects have not prevented them from placing themselves as subjects in language. Moreover, the dialogic, contextualized activities and the interlocutor’s mediation contributed to the processes of mediation and (re) signification of the subject’s statements. The AAC, in this context, was clearly a facilitator of discourse production and speech for these subjects.

The use of AAC can increase the linguistic possibilities of people with aphasia and promote changes in social interaction and social relationships, favoring a more active participation of the subjects. Furthermore, the use of AAC favored discursive and dialogic productions on both clinical and daily life situations of aphasics, being an important mediator of the linguistic process in aphasia, regarding the prospect of comprehensive care, health promotion and quality of life of these individuals and their families.

Figure 2 – S1: a new fact of subject’s life (13 months after AAC introduction) 

Figure 3 – S2: introducing the group members to a visitor (22 months after AAC introduction) 

Figure 5 – S4: shopping list (18 months after AAC introduction) 

Figure 6 – S5: talking about the family (34 months after AAC introduction) 


We thank the Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) for the financial aid, and the research subjects for their participation in this study.


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Sources of funding: Fundação de Amparo à Pesquisa do Estado de São Paulo – FAPESP.

Received: March 30, 2012; Accepted: October 29, 2012

Mailing address: Mariana Mendes Bahia. Rua Conselheiro Paula Sousa, 707. Campinas – SP. CEP: 13083-080. E-mail:

Conflict of interest: non-existent

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