This study presents the first direct comparison of immediate serial recall in semantic dementia (SD) and transcortical sensory aphasia (TSA). Previous studies of the effect of semantic impairment on verbal short-term memory (STM) have led to important theoretical advances. However, different conclusions have been drawn from these two groups. This…

We report on three experiments that provide a real-time processing perspective on the poor comprehension of Broca's aphasic patients for non-canonically structured sentences. In the first experiment we presented sentences (via a Cross Modal Lexical Priming (CMLP) paradigm) to Broca's patients at a normal rate of speech. Unlike the pattern found…

The high incidence of number transcoding deficits in aphasic subjects suggests there is a strong similarity between language and number domains. However, recent single case studies of subjects who showed a dissociation between word and number word transcoding led us to hypothesize that the two types of stimuli are represented independently in the…

At the level of clinical speech/language evaluation, the repetition type of conduction aphasia is characterized by repetition difficulties concomitant with reduced short-term memory capacities, in the presence of fluent spontaneous speech as well as unimpaired naming and reading abilities. It is still unsettled which dysfunctions of the…

The present study investigated verbal recall of semantically preserved and degraded words and nonwords by taking into consideration the status of one's semantic short-term memory (STM). Two experiments were conducted on 2 Chinese individuals with aphasia. The first experiment showed that they had largely preserved phonological processing abilities…

Presents data from a patient with a progressive fluent aphasia, who exhibited a severe verbal impairment but a relatively preserved access to knowledge from pictures. Argues for a distributed, multi-modality system for semantic memory in which information is stored in different brain regions and in different representational formats. (Author/VWL)

Proposes that the causal mechanisms of recovery patterns in bilingual aphasia can be partially revealed by combining neuropsychological and neuroimaging methods. Reviews potentials and limitations associated with functional neuroimaging experiments on normal and neurologically impaired patients and discusses different levels of description…

Sentence comprehension and grammaticality judgment were studied in 10 healthy subjects and 10 agrammatic aphasic stroke patients. The latter were able to make grammaticality and comprehension judgments, but less accurately. Results indicated that such judgments are made using different processes and/or operate on different aspects of language…

This paper reports an investigation into the dynamics of language processing. The experiment reported here consisted of administering an anagram test to samples from three populations: left brain-damaged with aphasia; right brain-damaged without aphasia and a normal control group. Data are discussed regarding performance in language processing.…

This study, using the Boston Naming Test, explores the notion that learned associations based on lexical co-occurrence probability influence sentence planning and may contribute to the ability of aphasic speakers to produce well-formed sentences. The study finds that use of lexical associates can facilitate sentence planning for adult aphasic…

Verb production is notoriously difficult for individuals with Broca's aphasia, both at the word and at the sentence level. An intriguing question is at which level in the speech production these problems arise. The aim of the present study is to identify the functional locus of the impairment that results in verb production deficits in Broca's…

Cognitive neuropsychological studies of bilingual patients with aphasia have contributed to our understanding of how the brain processes different languages. The question we asked is whether differences in script have any impact on language processing in bilingual aphasic patients who speak languages with different writing systems: Chinese and…

This paper analyzes aphasia using Titone's Glossodynamic Model which assumes the existence of three hierarchic levels of personality. (CFM)

Reviews research indicating linguistic knowledge is not innate, that the infant brain is highly differentiated at birth, that processing biases that lead to the "standard brain plan" are innate and localized but not specific to language, and that the infant brain is highly plastic, permitting alternative "brain plans." (Author/CR)

Temporal control has often been suspected to be a critical factor in intonation production. In particular, disturbance in the production of fundamental frequency (F0) associated with intonation in patients with aphasia has been attributed to a primary underlying deficit in speech timing. The present study examined the speech timing abilities of…