Neural investigations suggest that there are three possible core deficits in dyslexia: phonemic, grapho-phonemic, and graphemic. These investigations also suggest that the phonemic deficit resides in a different mode of speech perception which is based on allophonic (subphonemic) units rather than phonemic units. Here we review the results of remediation methods that tap into each of these core...

BACKGROUND Finding the right word is a necessity in communication, and its evaluation has always been a challenging clinical issue, suggesting the need for valid and reliable measurements. The Homophone Meaning Generation Test (HMGT) can measure the ability to switch between verbal concepts, which is required in word retrieval. The purpose of this study was to adapt and validate the Persian ver...

The aim of this study was to compare oral fluency strategies of Spanish-English bilinguals in Spanish and English with Spanish and English monolinguals when given either phonemic (alphabetical) or semantic categorical cues. The use of grammatical words (words that play a grammatical function relating words within a sentence) or content words (words that have a meaning such as nouns, verbs, and ...

The prevalence of subthreshold psychotic symptoms in the general population has gained increasing interest as a possible precursor of psychotic disorders. The goal of the present study was to evaluate whether neurobiological features of subthreshold psychotic symptoms can be detected using verbal fluency tasks and functional near-infrared spectroscopy (fNIRS). A large data set was obtained from...

AIMS Some studies show coronary heart disease (CHD) to be a risk factor for cognitive function while others report no association between the two. We examined the effect of CHD history and duration on cognition in a middle-aged population. METHODS AND RESULTS Data come from the Whitehall II study of 10,308 participants (33% women), aged 35-55 years at baseline (Phase 1; 1985-88). CHD events w...

BACKGROUND Parkinson's disease (PD) leads to deficits in executive function, including verbal and nonverbal fluency, as a result of compromised frontostriatal circuits. It is unknown whether deficits in verbal and nonverbal fluency in PD are driven by certain subgroups of patients, or how strategy use may facilitate performance. PARTICIPANTS Sixty-five nondemented individuals with PD, includi...

Background: In stroke hospitalizations, verbal fluency tests are used to evaluate executive abilities in order to assess the integrity of functioning and language. Prior studies show that clustering and switching during verbal fluency tasks are related to functioning of specific brain regions, such that they are thought to be more sensitive in detecting impairments in frontal regions compared t...

This study explored the effects of contextual support, discourse genre, and the listener's knowledge of information on syntactic and phonologic production and fluency. Subjects were language-learning-disabled, reading-disabled, and normal primary school children. Clause structure complexity, fluency, and grammatical and phonemic accuracy tended to be highest when children were discussing absent...