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Fluid intelligence

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https://www.readbyqxmd.com/read/28521521/introduction-to-the-special-issue-on-fluid-intelligence
#1
Arthur MacNeill Horton
No abstract text is available yet for this article.
May 19, 2017: Applied Neuropsychology. Child
https://www.readbyqxmd.com/read/28506124/fluid-intelligence-a-brief-history
#2
Phillip Kent
The concept of fluid and crystallized intelligence was introduced to the psychological community approximately 75 years ago by Raymond B. Cattell, and it continues to be an area of active research and controversy. The purpose of this paper is to provide a brief overview of the origin of the concept, early efforts to define intelligence and uses of intelligence tests to address pressing social issues, and the ongoing controversies associated with fluid intelligence and the structure of intelligence. The putative neuropsychological underpinnings and neurological substrates of fluid intelligence are discussed...
May 16, 2017: Applied Neuropsychology. Child
https://www.readbyqxmd.com/read/28502585/frontoparietal-neurostimulation-modulates-working-memory-training-benefits-and-oscillatory-synchronization
#3
Kevin T Jones, Dwight J Peterson, Kara J Blacker, Marian E Berryhill
There is considerable interest in maintaining working memory (WM) because it is essential to accomplish most cognitive tasks, and it is correlated with fluid intelligence and ecologically valid measures of daily living. Toward this end, WM training protocols aim to improve WM capacity and extend improvements to unpracticed domains, yet success is limited. One emerging approach is to couple WM training with transcranial direct current stimulation (tDCS). This pairing of WM training with tDCS in longitudinal designs promotes behavioral improvement and evidence of transfer of performance gains to untrained WM tasks...
May 11, 2017: Brain Research
https://www.readbyqxmd.com/read/28497989/focus-on-fluid-reasoning-the-relationship-between-fluid-reasoning-and-the-pattern-of-strengths-and-weaknesses-model
#4
Lisa M Grant, Pauline Prince
The purpose of this paper is to examine the Fluid Reasoning Index of the Wechsler Intelligence Test for Children, Fifth Edition (WISC-V), and determine how fluid-reasoning skills relate to academic skill acquisition in the classroom setting. We also examine the myriad of ways within which learning and learning disabilities can be defined. Also, we plan to examine a brief review of the definition of a Specific Learning Disability and review some of the leading theories related to the Pattern of Strengths and Weaknesses model...
May 12, 2017: Applied Neuropsychology. Child
https://www.readbyqxmd.com/read/28494815/association-between-fluid-intake-and-mortality-in-critically-ill-patients-with-negative-fluid-balance-a-retrospective-cohort-study
#5
Yanfei Shen, Xinmei Huang, Weimin Zhang
BACKGROUND: Compared to positive fluid balance (FB), negative FB is associated with improved clinical outcomes in critically ill patients. However, as to whether achieving more negative FB can further improve outcomes has not been investigated. This study aimed to investigate whether more negative FB and restricted fluid intake were associated with improved outcomes in critically ill patients. METHOD: Data were extracted from the Multi-parameter Intelligent Monitoring in Intensive Care III Database...
May 12, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28493012/eeg-microstate-correlates-of-fluid-intelligence-and-response-to-cognitive-training
#6
Emiliano Santarnecchi, Arjun R Khanna, Christian S Musaeus, Christopher S Y Benwell, Paula Davila, Faranak Farzan, Santosh Matham, Alvaro Pascual-Leone, Mouhsin M Shafi
The neurobiological correlates of human fluid intelligence (Gf) remain elusive. Here, we demonstrate that spatiotemporal dynamics of EEG activity correlate with baseline measures of Gf and with its modulation by cognitive training. EEG dynamics were assessed in 74 healthy participants by examination of fast-changing, recurring, topographically-defined electric patterns termed "microstates", which characterize the electrophysiological activity of distributed cortical networks. We find that the frequency of appearance of specific brain topographies, spatially associated with visual (microstate B) and executive control (microstate C) networks, respectively, is inversely related to Gf scores...
May 10, 2017: Brain Topography
https://www.readbyqxmd.com/read/28492102/determinants-of-fluid-intelligence-in-healthy-aging-omega-3-polyunsaturated-fatty-acid-status-and-frontoparietal-cortex-structure
#7
Marta K Zamroziewicz, Erick J Paul, Chris E Zwilling, Aron K Barbey
INTRODUCTION: Accumulating evidence indicates that cognitive decline depends not only upon changes in brain health, but critically, also upon nutritional status. Decline in fluid intelligence, one of the most debilitating aspects of cognitive aging, has been linked to omega-3 polyunsaturated fatty acid (PUFA) status; however, it is not known whether this phenomenon results from specific omega-3 PUFAs acting on particular aspects of brain health. Therefore, this study aims to explore whether particular patterns of omega-3 PUFAs influence fluid intelligence by supporting specific neural structures...
May 11, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/28489432/touching-the-elephant-the-search-for-fluid-intelligence
#8
Theodore Wasserman, Lori Drucker Wasserman
Many constructs that we take for granted in modern neuropsychology, fluid intelligence among them, can best be explained by conceptionalizing them as a collection of task specific processes engaged in by an integrated recruited network involved in problem solving. Fractionalizing the network in an attempt to describe elements of its function leads to arbitrarily defined segments that may be interesting to discuss abstractly, but never occur independently in the real world operation of the system. We will seek to demonstrate that the construct of fluid intelligence is like that...
May 10, 2017: Applied Neuropsychology. Child
https://www.readbyqxmd.com/read/28489422/mechanisms-of-automaticity-and-anticipatory-control-in-fluid-intelligence
#9
Arthur W Joyce
The constructs of fluid (Gf) and crystalized (Gc) intelligence represent an early attempt to describe the mechanisms of problem solving in the vertebrate brain. Modern neuroscience demonstrates that problem solving involves interplay between the mechanisms of automaticity and anticipatory control, enabling nature's elegant solution to the challenges animals face in their environment. Studies of neural functioning are making clear the primary role of cortical-subcortical interactions in the manifestation of intelligent behavior in humans and other vertebrates...
May 10, 2017: Applied Neuropsychology. Child
https://www.readbyqxmd.com/read/28480894/preserved-cognitive-functions-with-age-are-determined-by-domain-dependent-shifts-in-network-responsivity
#10
Dávid Samu, Karen L Campbell, Kamen A Tsvetanov, Meredith A Shafto, Lorraine K Tyler
Healthy ageing has disparate effects on different cognitive domains. The neural basis of these differences, however, is largely unknown. We investigated this question by using Independent Components Analysis to obtain functional brain components from 98 healthy participants aged 23-87 years from the population-based Cam-CAN cohort. Participants performed two cognitive tasks that show age-related decrease (fluid intelligence and object naming) and a syntactic comprehension task that shows age-related preservation...
May 8, 2017: Nature Communications
https://www.readbyqxmd.com/read/28461462/complexity-and-compositionality-in-fluid-intelligence
#11
John Duncan, Daphne Chylinski, Daniel J Mitchell, Apoorva Bhandari
Compositionality, or the ability to build complex cognitive structures from simple parts, is fundamental to the power of the human mind. Here we relate this principle to the psychometric concept of fluid intelligence, traditionally measured with tests of complex reasoning. Following the principle of compositionality, we propose that the critical function in fluid intelligence is splitting a complex whole into simple, separately attended parts. To test this proposal, we modify traditional matrix reasoning problems to minimize requirements on information integration, working memory, and processing speed, creating problems that are trivial once effectively divided into parts...
May 1, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28458748/resolving-conflicts-between-syntax-and-plausibility-in-sentence-comprehension
#12
Glenda Andrews, Jessica E Ogden, Graeme S Halford
Comprehension of plausible and implausible object- and subject-relative clause sentences with and without prepositional phrases was examined. Undergraduates read each sentence then evaluated a statement as consistent or inconsistent with the sentence. Higher acceptance of consistent than inconsistent statements indicated reliance on syntactic analysis. Higher acceptance of plausible than implausible statements reflected reliance on semantic plausibility. There was greater reliance on semantic plausibility and lesser reliance on syntactic analysis for more complex object-relatives and sentences with prepositional phrases than for less complex subject-relatives and sentences without prepositional phrases...
2017: Advances in Cognitive Psychology
https://www.readbyqxmd.com/read/28444104/psychomotor-ability-and-short-term-memory-and-reading-and-mathematics-achievement-in-children
#13
Cherée Murrihy, Maria Bailey, John Roodenburg
Objective: The aim of our study was to examine whether the findings from previous research, indicating the role of short-term memory as a mediator of the relationship between motor coordination and academic achievement in adolescents, is also evident in a younger child population. Method: The study utilized a quantative cross-sectional design involving 133 children aged 8-12. The McCarron Assessment of Neuromuscular Development (MAND) provided four indicators of psychomotor ability (Finger Nose, Walking, Balancing, and Jumping)...
April 24, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28439103/brain-age-predicts-mortality
#14
J H Cole, S J Ritchie, M E Bastin, M C Valdés Hernández, S Muñoz Maniega, N Royle, J Corley, A Pattie, S E Harris, Q Zhang, N R Wray, P Redmond, R E Marioni, J M Starr, S R Cox, J M Wardlaw, D J Sharp, I J Deary
Age-associated disease and disability are placing a growing burden on society. However, ageing does not affect people uniformly. Hence, markers of the underlying biological ageing process are needed to help identify people at increased risk of age-associated physical and cognitive impairments and ultimately, death. Here, we present such a biomarker, 'brain-predicted age', derived using structural neuroimaging. Brain-predicted age was calculated using machine-learning analysis, trained on neuroimaging data from a large healthy reference sample (N=2001), then tested in the Lothian Birth Cohort 1936 (N=669), to determine relationships with age-associated functional measures and mortality...
April 25, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28408412/fluid-intelligence-predicts-novel-rule-implementation-in-a-distributed-frontoparietal-control-network
#15
Nadja Tschentscher, Daniel Mitchell, John Duncan
Fluid intelligence has been associated with a distributed cognitive control or multiple-demand (MD) network, comprising regions of lateral frontal, insular, dorsomedial frontal, and parietal cortex. Human fluid intelligence is also intimately linked to task complexity, and the process of solving complex problems in a sequence of simpler, more focused parts. Here, a complex target detection task included multiple independent rules, applied one at a time in successive task epochs. Although only one rule was applied at a time, increasing task complexity (i...
May 3, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28402332/deep-learning-for-flow-sculpting-insights-into-efficient-learning-using-scientific-simulation-data
#16
Daniel Stoecklein, Kin Gwn Lore, Michael Davies, Soumik Sarkar, Baskar Ganapathysubramanian
A new technique for shaping microfluid flow, known as flow sculpting, offers an unprecedented level of passive fluid flow control, with potential breakthrough applications in advancing manufacturing, biology, and chemistry research at the microscale. However, efficiently solving the inverse problem of designing a flow sculpting device for a desired fluid flow shape remains a challenge. Current approaches struggle with the many-to-one design space, requiring substantial user interaction and the necessity of building intuition, all of which are time and resource intensive...
April 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28401527/fluid-intelligence-traits-of-personality-and-personality-disorders-in-a-cohort-of-adult-ks-patients-with-the-classic-47-xxy-karyotype
#17
D Liberato, S Granato, D Grimaldi, F M Rossi, N Tahani, D Gianfrilli, A Anzuini, A Lenzi, G Cavaggioni, A F Radicioni
PURPOSE: Klinefelter's syndrome (KS) is associated with specific neurobehavioral features and personality traits. The aim of our study was to investigate fluid intelligence, personality traits and personality disorders (PD) and possible correlations with testosterone in a cohort of adult KS patients. METHODS: We analyzed 58 adult KS patients with the classic 47, XXY karyotype. The Structured Clinical Interview for axis II disorders was used to assess DSM IV personality disorders...
April 11, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28381995/working-memory-training-for-healthy-older-adults-the-role-of-individual-characteristics-in-explaining-short-and-long-term-gains
#18
Erika Borella, Elena Carbone, Massimiliano Pastore, Rossana De Beni, Barbara Carretti
Objective: The aim of the present study was to explore whether individual characteristics such as age, education, vocabulary, and baseline performance in a working memory (WM) task-similar to the one used in the training (criterion task)-predict the short- and long-term specific gains and transfer effects of a verbal WM training for older adults. Method: Four studies that adopted the Borella et al. (2010) verbal WM training procedure were found eligible for our analysis as they included: healthy older adults who attended either the training sessions (WM training group), or alternative activities (active control group); the same measures for assessing specific gains (on the criterion WM task), and transfer effects (nearest on a visuo-spatial WM task, near on short-term memory tasks and far on a measure of fluid intelligence, a measure of processing speed and two inhibitory measures); and a follow-up session...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28378297/working-memory-components-that-predict-word-problem-solving-is-it-merely-a-function-of-reading-calculation-and-fluid-intelligence
#19
Wenson Fung, H Lee Swanson
The purpose of this study was to assess whether the differential effects of working memory (WM) components (the central executive, phonological loop, and visual-spatial sketchpad) on math word problem-solving accuracy in children (N = 413, ages 6-10) are completely mediated by reading, calculation, and fluid intelligence. The results indicated that all three WM components predicted word problem solving in the nonmediated model, but only the storage component of WM yielded a significant direct path to word problem-solving accuracy in the fully mediated model...
April 4, 2017: Memory & Cognition
https://www.readbyqxmd.com/read/28369877/change-in-fluid-and-crystallized-intelligence-and-student-achievement-the-role-of-intellectual-engagement
#20
Gizem Hülür, Fidan Gasimova, Alexander Robitzsch, Oliver Wilhelm
Intellectual engagement (IE) refers to enjoyment of intellectual activities and is proposed as causal for knowledge acquisition. The role of IE for cognitive development was examined utilizing 2-year longitudinal data from 112 ninth graders (average baseline age: 14.7 years). Higher baseline IE predicted higher baseline crystallized ability but not changes therein, and was not associated with fluid ability. Furthermore, IE predicted change in school grades in language but not in mathematics grades or in standardized tests...
March 28, 2017: Child Development
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