A multimodal neurolinguistic treatment approach for conduction aphasia: A single case study.

Spratt, Jillian K. and Roberts, Angela and Eaton, Bracia and Medzon, Debra and Orange, J.B. (2013) A multimodal neurolinguistic treatment approach for conduction aphasia: A single case study. [Clinical Aphasiology Paper]

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Abstract

Conduction aphasia is characterized by significant changes to language output including phonetically complex paraphasias, severely impaired repetition, and difficulty comprehending specific lexical information in isolation despite relatively good comprehension of the ‘gist’ of the message (Baldo, Klostermann, & Dronkers, 2008; Goodglass, 1992; Joanette, Keller, & Lecours, 1980; Kohn, 1984). Nickels, Howard, and Best (1997) proposed that individuals with conduction aphasia experience difficulty processing auditory-verbal information secondary to disruption in articulatory loop processes. Baldo et al. (2008), using sentence level stimuli, further suggested that persons with conduction aphasia rely more on the semantic processes versus articulatory loop processes when interpreting messages. Such deficits in conduction aphasia are not exclusive to language output channels (Baldo et al., 2008; Caramazza, Basili, & Koller, 1981; Shallice & Warrington, 1977; Warrington & Shallice, 1969). In the current study, we combined the work of Nickels et al. (1997) and Baldo et al. (2008) to develop a novel multimodal, combined semantic and a phonological approach for treatment for an individual with chronic conduction aphasia. The goal of this treatment was to improve auditory comprehension (e.g., word and sentence level) and increase propositional spoken language (e.g., single word and discourse level). We hypothesized that priming the semantic network would facilitate access to the phonological representation of trained words and as a result, improved auditory comprehension and lexical retrieval.

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