Background: The typicality effect is present in neurologically intact populations for natural, ad-hoc, and well-defined categories. Although sparse, there is evidence of typicality effects in persons with chronic stroke aphasia for natural and ad-hoc categories. However, it is unknown exactly what influences the typicality effect in this…

Purpose: Individuals with probable Alzheimer disease (pAD) are frequently impaired at picture naming. This study examined whether a semantic elaboration task would facilitate naming in pAD, and whether training either semantically typical or atypical stimulus items facilitated generalized improvement in picture naming and category generation…

Purpose: Many adults with aphasia demonstrate concomitant deficits in working memory (WM), but such deficits are difficult to quantify because of a lack of validated measures as well as the complex interdependence between language and WM. We examined the feasibility, reliability, and internal consistency of an "n"-back task for…

This study investigated noun-verb retrieval patterns of 30 adults with chronic undifferentiated schizophrenia and 67 typical adults, to determine if schizophrenia affected nouns (associated with temporal lobe function) differently from verbs (associated with frontal lobe function). Stimuli were homophonic homographic homonyms, balanced according…

Little evidence-based research has been published within the field of communication disorders on the role of dogs as catalysts for human communication. This single participant study, a point of entry into this realm of research, explores the effects of a therapy dog on the communication skills of a patient with aphasia receiving intensive speech…

The oral expressive language of 47 aphasic subjects (who had suffered a single unilateral occlusive cerebral vascular accident two to four weeks prior to original testing) was measured on two occasions a year apart. Results found positive changes toward normal language functioning for several variables with type of aphasia affecting outcome on…

Results of a seven-week sentence stimulation treatment on sentence production in an aphasic adult female with agrammatism indicated that treatment influenced description of test picture sets and that some generalization to other picture sets occurred. (Author/DB)

Fifteen aphasic and 15 normal adults demonstrated use of a right hemisphere visuospatial strategy to analyze printed whole words and word parts such as prefixes and suffixes. The performances of the two groups were similar, suggesting that the hypothesized strategy could be useful as a reading approach for aphasics. (Author/CL)

Aphasic adults (N=16) with severe auditory comprehension impairment were evaluated for comprehension of redundant and nonredundant spoken and/or gestured messages. Results indicated redundancy was not reliably superior to spoken messages alone. (Author/DB)

This study of 36 adults without brain damage examined the degree that reading comprehension therapy materials designed for adults with aphasia are capable of measuring reading comprehension. Subjects were able to answer correctly at least half of the questions from 40 paragraphs at greater than chance levels without reading the related paragraph.…

Gains made by a woman with Broca's aphasia as documented by traditional measures were paralleled by changes in conversation, including increased verbal output and efficiency, and changes in conversation-repair patterns. The progress documented with conversational discourse analysis was not observable from other test measures. (Author/DB)

A sociolinguistic, semantic analysis of intonation was conducted on a 15-minute natural interaction between an aphasic speaker, his wife, and his neighbor. Findings indicated the neighbor made more use of two dimensions of intonation, specifically pitch movements referring to shared information and marked tones, when addressing the aphasic speaker…

Conversation analysis was used to investigate a conversational partner's strategies when assisting with the word searches of an aphasic person. Analysis of 38 authentic videotaped conversation sequences identified four conversation strategies systematically and collaboratively used: guessing, alternative guessing, completion, and closing…

The study describes the Shewan Spontaneous Language Analysis (SSLA), establishes its reliability and validity, and reports on its use with 47 aphasic adults who had suffered a single unilateral occlusive cerebral vascular accident two to four weeks prior to testing and 30 normal adults. (Author/DB)

Language sample data from normal subjects (ages 40-79) were collected to determine how normal aging might affect performance on a picture description task, routinely used for assessment of aphasic individuals. Only an increase in the number of paraphasias and a decrease in communication efficiency correlated with increased age. (DB)