Primary progressive aphasia (PPA) is an acquired neurodegenerative syndrome that has specific and devastating effects on an individual's speech and language ability. Based on a detailed assessment of behavior and cognition, combined with structural neuroimaging data and pathological evidence, PPA is typically classified into three variants: the…

Many recent models of language comprehension have stressed the role of distributional frequencies in determining the relative accessibility or ease of processing associated with a particular lexical item or sentence structure. However, there exist relatively few comprehensive analyses of structural frequencies, and little consideration has been…

Russian patients with different types of aphasia experienced different problems in their performance on two types of linguistic operations. The efferent motor group exhibited more grammatico-structural disturbances, while the afferent motor and sensory aphasics exhibited grammatico-semantic disturbances. (Author/RL)

Agrammatism, the disruption of the grammatical structure of speech, is studied in its accompaniment to aphasia. Since it occurs with all studied forms of aphasia, it is considered here a symptom typical to aphasia. It is also examined in relation to different kinds of aphasics. (SCC)

A report on a study of a large number of subjects afflicted with sensory aphasia. Topics covered are: the distributional pattern of grammatical categories; paraphasia; a statistical analysis of associated syndromes; possible relationship to the location of the lesion. Some examples of spontaneous language are included. (Text is in French.) (AMH)

THIS EXPERIMENT IS DESIGNED TO ULTIMATELY ESTABLISH A TECHNIQUE FOR STUDYING THE APHASIC'S ABILITY TO DEMONSTRATE HIS GRAMMATICAL COMPETENCE. HOWEVER, BEFORE EXPOSING APHASICS TO THE TASK, AN EXPERIMENT WAS CARRIED OUT WITH NORMAL SUBJECTS (COLLEGE STUDENTS) TO OBTAIN BASELINE DATA. THE MAIN PURPOSE OF THE PRESENT STUDY WAS TO DETERMINE WHETHER…

A discussion of grammatical disorders in aphasia considers an area of ambiguity. In the work of one researcher, impairment of logico-grammatical relations is associated with semantic aphasia, not efferent-motor aphasia. In Western studies, efferent-motor aphasia is associated with impaired comprehension and production of grammar. In order to…

Investigated the source of agrammatic aphasic patients' difficulty comprehending semantically reversible sentences. Found approximately equal distributions of three distinct patterns. Results conflict with explanations of comprehension failure which state that a single pattern of performance on sentence structures characterizes comprehension of…

In this book, current work and issues in psycholinguistics are reviewed by 19 noted authorities in the fields of psychology, linguistics, education, psychiatry, and medicine. The seven sections of the book discuss past and present issues in psycholinguistics (including controversial issues and the theoretical and historical roots of…

This book explores the nature and purposes of formulaic language, examining patterns across research from the fields of discourse analysis, first language acquisition, language pathology, and applied linguistics. There are 14 chapters in 6 parts. Part 1, "What Formulaic Sequences Are," includes (1) "The Whole and the…

Two studies are reported in which the following theory is tested: the agrammatic sentence form that is observed in the spontaneous speech of Broca's aphasics is attributable to the selection of elliptical syntactic structures in which the slots for many of the closed-class words that appear in complete sentences are lacking. (54 references)…

Studies have indicated that agrammatical aphasics tend to better realize morphemes with a high level of semantic value. A study sought to examine the effect of the variation of the information content of the article on its comprehension by the aphasic. The appropriate and the significant nature of the function words "the" and "a" were varied with…

Spoken narratives as a genre usually show literary stylistic features. Written/literary registers are characterized by lexical density whereas spoken/colloquial genres are characterized by the complex combination of simple clauses into clause complexes. It has been observed that when aiming at informationally dense speech, people often hesitate…

This monograph investigates aspects of language processing that are not specialized in the left hemisphere, and claims that there are "levels" (such as pitch functions) and "subsets" (such as phrase structuring) which are different in essential ways from each other, and from the aspects of speech and language which are typically lateralized.…

Papers from the conference include: "English and Human Morphology: 'Naturalness' in Counting and Measuring" (Sullivan); "Phonetic and Phonemic Change Revisited" (Lockwood); "Virtual Reality" (Langacker); "Path Directions in ASL Agreement Verbs are Predictable on Semantic Grounds" (Taub); "Temporal…