Cognitive Fluency Graph

Fluency word counts were associated with global severity as measured by Addenbrooke's Cognitive Examination Revised. Verbal fluency is an efficient test for assessing global brain-cognitive health but has limited utility in differentiating between cognitively and anatomically disparate patient groups. Copelli M, et al. Graph analysis of

Network graph analysis is a promising technique for analyzing changes in category fluency. Our technique results in nonrandom graphs consistent with well-characterized properties for these types of graphs. 3.17, and 2.65 small world properties decreased with increasing cognitive impairment, and all graphs showed scale-free properties. Rank

umber, clustering coefficient, average path length, average number of direct neighbors, and scale-free and small-world properties. Objective To shed light on whether the underlying neural processes involved in semantic category fluency testing yield substantially different networks in different languages. Method We compared languages and methods using both network analysis and conventional

Graph theory, a mathematical approach to analyze relations between items, represents a promising tool to understand a variety of neuropsychological states. This study reports a graph analysis of data generated by the semantic verbal uency test by cognitively healthy elderly NC, patients with Mild Cognitive Impairmentsubtypes amnestic aMCI

Keywords semantic verbal fluency, graph analysis, elderly, Alzheimer's disease, mild cognitive impairment Introduction Language and semantic memory tend to remain stable across the human lifespan in contrast to other cognitive domains, like episodic memory and attention, which usually decline after the 5th decade Craik and Bialystok, 2006 .

They found that speech graphs of semantic fluency become smaller and denser as general cognition decreases. Verbal fluency tasks involve several cognitive processes a attention to search words from an abundant semantic store, b selection of appropriate words to produce, c programming of speech production, and d keeping track of the

The novelty of our study is the signature contribution to verbal fluency associated with CR and age, i.e. lexical access and a strong contribution of executive functions allow for older individuals with high CR to maintain their high performance on verbal fluency. The graph theory analyses showed that the average global efficiency was increased

Semantic verbal fluency SFV is a cognitive process that engages and modulates specific brain areas related to language comprehension and production, decision making, response inhibition, and memory retrieval. Our approach successfully overcame the generalization problem regarding functional MRI fMRI graph analysis with cognitive, task

Verbal fluency patterns in mild cognitive impairment and Alzheimer's disease. Dementia and Geriatric Cognitive Disorders, 38, 1-9. Google Scholar Salmon D, Heindel WC, and Lange KL 1999. Differential decline in word generation from phonemic and semantic categories during the course of Alzheimer's disease Implications for the

Keywords semantic verbal fluency, graph analysis, elderly, Alzheimer's disease, mild cognitive impairment Citation Bertola L, Mota NB, Copelli M, Rivero T, Diniz BS, Romano-Silva MA, Ribeiro S and Malloy-Diniz LF 2014 Graph analysis of verbal fluency test discriminate between patients with Alzheimer's disease, mild cognitive impairment and