A Usability Study of Internet-Based Therapy for Naming Deficits in Aphasia.

Purpose: This study aimed to evaluate the usability of delivering the Phonological Components Analysis treatment for anomia (Leonard, Rochon, & Laird, 2008) remotely via the Internet to individuals with chronic poststroke aphasia. A secondary aim was to probe the experiences and satisfaction of clinicians in administering treatment at a distance. Method: Six individuals with mild-moderate aphasia and 2 trained clinicians participated in this usability study. Participants and clinicians underwent approximately 6 hr of treatment under observation by an independent observer. The usability characteristics of effectiveness, efficiency, and satisfaction were assessed. Results: Individuals with aphasia used the Internet-based Phonological Components Analysis therapy successfully, demonstrating independence and very few errors in completing online tasks. Overall, participant satisfaction was high, despite occasional difficulties with technical aspects of the system. Clinicians found the application easy to use but raised concerns about the participant-clinician interaction, perceiving rapport-building and communicating to be more difficult online than face-to-face. Conclusions: It is important to consider usability and the clinician's perspective in developing telepractice applications in speech-language pathology. Future directions include assessing the efficacy of remote treatment and collecting a larger sample of clinician data.

Wh- questions and passive sentences in non-fluent variant PPA and semantic variant PPA: Longitudinal findings of an anagram production task.

Using an anagram task, we investigated longitudinal syntactic production by individuals with semantic variant primary progressive aphasia (svPPA) and non-fluent variant PPA (nfvPPA), compared to controls. The accuracy of the production of active and passive, and reversible and non-reversible sentences, as well as of wh- questions was compared across the three groups. Results showed a different pattern of syntactic impairment across the two patient groups. The nfvPPA group showed difficulty with wh- questions at Time 1 and impairment with the passive structure approximately one year later, at Time 2. Surprisingly, the svPPA group also showed difficulty with wh- questions from Time 1, but still no difficulty on passive sentences, two years later, at Time 3. Neither group had difficulty with reversibility. The results of the nfvPPA patients were as expected, and the results of the svPPA patients suggest that this group may exhibit a greater syntactic impairment than is typically recognized.

Sentence comprehension in semantic dementia: a longitudinal case study.

Sentence comprehension abilities were investigated in a patient with semantic dementia who was administered tests of semantic knowledge and sentence comprehension over a 5-year period. Results showed that despite a severe and continual degradation in semantic knowledge, syntactic comprehension abilities remained largely intact. Evidence was also found for a codependency between semantics and syntax in a task in which knowledge about conceptual number influenced subject-verb agreement in the patient and in control participants. Results are discussed in relation to the nature of the sentence comprehension impairment in semantic dementia and with reference to the modularity of the components of the language processing system.