Background: In certain regions of the brain, aphasia arises from a lack understanding and regulating language following damage. About 35–40 percent people receiving hospitalization after stroke are identified with aphasia. The recently developed imaging methods for analysis impact brain lesion sites sizes on Diffusion Tensor Imaging (DTI) Fractional Anisotropy (FA). order to reflect micro-struc...

Dissociation "automatico-voluntaire" is a symptom observed in aphasic patients. We elucidated the difference between voluntary and involuntary speech output in a quantitative manner using the same task materials in nine patients with Wernicke's aphasia. All the patients exhibited better ability and less paraphasias in a repetition task elicited in a disguised condition than in an ordinary repet...

The terms 'jargon aphasia' and 'jargon agraphia' describe the production of incomprehensible language containing frequent phonological, semantic or neologistic errors in speech and writing, respectively. Here we describe two patients with primary progressive aphasia (PPA) who produced neologistic jargon either in speech or writing. We suggest that involvement of the posterior superior temporal-...

This study compared the sentence production abilities of individuals with Broca's and Wernicke's aphasia in an attempt to explore the extent to which impaired lexical retrieval impedes sentence production. The ability to produce active and passive reversible and non-reversible sentences was examined when varying amounts of lexical information was provided. The results showed that both Wernicke'...

Different types of syntactic information (word category, grammatical gender) are processed at different times during word recognition. However, it is an open issue which brain systems support these processes. In the present event-related fMRI study, subjects performed either a syntactic gender decision task on German nouns (GEN), a word category decision task (WC, nouns vs. prepositions), or a ...

In a series of experiments, the effect of white noise distortion and talker variation on lexical access in normal and Broca's aphasic participants was examined using an auditory lexical decision paradigm. Masking the prime stimulus in white noise resulted in reduced semantic priming for both groups, indicating that lexical access is degraded by nonlinguistic white noise distortion. However, tal...

In their reply (1) to our study (2), Gorea and Tyler assert that our results are trivial, that they are wrong, and that Gorea and Tyler discovered them first anyway. Here we describe the problems with their logic and previous related research, and resolve that our results and conclusions stand. According to Gorea and Tyler (1), intrinsic expertise bias (IEB) is implausible because it lacks a de...

This chapter has three sections. The first provides an examination of the general notion that the brain distinguishes among amodal linguistic components. The second section attempts to support a more specific claim: Namely, that from a linguistic perspective, agrammatism can, best be reconstructed in syntactic terms. And the third section focuses upon processing disruptions in agrammatism-that ...

The hypothesized role of Broca's area in sentence processing ranges from domain-general executive function to domain-specific computation that is specific to certain syntactic structures. We examined this issue by manipulating syntactic structure and conflict between syntactic and semantic cues in a sentence processing task. Functional neuroimaging revealed that activation within several Broca'...

Aphasia is a language disorder caused by brain damage and makes the patient lose or impair skills. One of diseases which often cause people to experience aphasia stroke. In this study, researchers observed characteristics impairment Sarah Scott. She’s young woman suffering from Broca's after This study employed qualitative descriptive method on utterances she produced in SymphUK YouTube channel...