scholarly journals Digit symbol coding and general cognitive ability in schizophrenia: worth another look?

2008 ◽  
Vol 193 (5) ◽  
pp. 354-356 ◽  
Author(s):  
Dwight Dickinson
Keyword(s):  
Cognitive Ability ◽  
Cognitive Performance ◽  
Neuropsychological Test ◽  
Digit Symbol ◽  
General Cognitive Ability

SummaryFor decades, schizophrenia researchers have sought to map specific aspects of cognitive performance onto specific neurobiological systems in hopes of dividing broad cognition and neurobiology into more tractable components. Recent findings from studies using neuropsychological test batteries, in combination with emerging neurobiological evidence, argue for a complementary focus on more generalised cognitive and biological dimensions.

scholarly journals Acculturation moderates cognitive performance in adults at risk of autosomal dominant Alzheimer's Disease

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 1031-1031
Author(s):  
Kayla Tureson ◽  
Christopher Beam ◽  
John Ringman
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
At Risk ◽  
Cognitive Functioning ◽  
Cognitive Ability ◽  
Cognitive Performance ◽  
Mexican Americans ◽  
Autosomal Dominant ◽  
General Cognitive Ability ◽  
The Impact

Abstract Acculturative processes via persistent exposure to a set of cultural practices and behaviors can influence cognitive functioning (Park & Huang, 2010). The impact of acculturation on populations at risk for Alzheimer’s disease (AD), however, remains understudied. Persons with or at-risk for early-onset autosomal dominant AD (ADAD) offer a known AD pathogenesis and the opportunity to study whether acculturation moderates their cognitive performance. The present study used a latent variable model to test whether effects of latent cognitive ability on observable cognitive performance depend on acculturation. Participants included 119 adults with or at-risk for ADAD, the majority of whom were of Mexican origin with various levels of U.S. acculturation. Participants completed the Cognitive Abilities Screening Instrument (CASI) and the Acculturation Rating Scale for Mexican Americans-II (ARSMA-II). Confirmatory factor analysis was used to estimate a latent general cognitive ability factor from nine domains (e.g., attention, abstraction and judgment). The ARSMA-II was used to test whether factor loadings depended on level of acculturation, covarying for mutation status. Results revealed ARSMA-II scores nearly significantly moderated the effects of general cognitive ability on abstraction and judgment (λ = 0.20, SE = 0.11, p = .070). Individual differences in general cognitive ability at lower levels of acculturation likely predict lower abstraction and judgment performance. Cognitive assessments may not equally represent true cognitive ability in Mexican-Americans. Although the CASI was developed as a cross-cultural measure of cognitive functioning, caution should be exercised in inferring true cognitive functioning in Mexican-Americans who may not be acculturated to the U.S.

Sex Differences in Childhood Associations between DNA Markers and General Cognitive Ability

2007 ◽  
Vol 28 (3) ◽  
pp. 161-164 ◽  
Author(s):  
Rosalind Arden ◽  
Nicole Harlaar ◽  
Robert Plomin
Keyword(s):  
Sex Differences ◽  
Single Nucleotide Polymorphisms ◽  
Cognitive Ability ◽  
Dna Markers ◽  
Community Sample ◽  
Nucleotide Polymorphisms ◽  
General Cognitive Ability ◽  
Single Nucleotide ◽  
The Difference

Abstract. An association between intelligence at age 7 and a set of five single-nucleotide polymorphisms (SNPs) has been identified and replicated. We used this composite SNP set to investigate whether the associations differ between boys and girls for general cognitive ability at ages 2, 3, 4, 7, 9, and 10 years. In a longitudinal community sample of British twins aged 2-10 (n > 4,000 individuals), we found that the SNP set is more strongly associated with intelligence in males than in females at ages 7, 9, and 10 and the difference is significant at 10. If this finding replicates in other studies, these results will constitute the first evidence of the same autosomal genes acting differently on intelligence in the two sexes.

scholarly journals Diet and general cognitive ability in the UK Biobank dataset

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Piril Hepsomali ◽  
John A. Groeger
Keyword(s):  
Cognitive Ability ◽  
Dietary Patterns ◽  
Red Meat ◽  
Milk Intake ◽  
Special Focus ◽  
General Cognitive Ability ◽  
Food Groups ◽  
Uk Biobank ◽  
Wide Range ◽  
The Uk

AbstractAccumulating evidence suggests that dietary interventions might have potential to be used as a strategy to protect against age-related cognitive decline and neurodegeneration, as there are associations between some nutrients, food groups, dietary patterns, and some domains of cognition. In this study, we aimed to conduct the largest investigation of diet and cognition to date, through systematically examining the UK Biobank (UKB) data to find out whether dietary quality and food groups play a role on general cognitive ability. This cross-sectional population-based study involved 48,749 participants. UKB data on food frequency questionnaire and cognitive function were used. Also, healthy diet, partial fibre intake, and milk intake scores were calculated. Adjusted models included age, sex, and BMI. We observed associations between better general cognitive ability and higher intakes of fish, and unprocessed red meat; and moderate intakes of fibre, and milk. Surprisingly, we found that diet quality, vegetable intake, high and low fibre and milk intake were inversely associated with general cognitive ability. Our results suggest that fish and unprocessed red meat and/or nutrients that are found in fish and unprocessed red meat might be beneficial for general cognitive ability. However, results should be interpreted in caution as the same food groups may affect other domains of cognition or mental health differently. These discrepancies in the current state of evidence invites further research to examine domain-specific effects of dietary patterns/food groups on a wide range of cognitive and affective outcomes with a special focus on potential covariates that may have an impact on diet and cognition relationship.

scholarly journals Flipping the Script: Measuring Both Performance Validity and Cognitive Ability with the Forced Choice Recognition Trial of the RCFT

2021 ◽  
pp. 003151252110197
Author(s):  
Kaitlyn Abeare ◽  
Kristoffer Romero ◽  
Laura Cutler ◽  
Christina D. Sirianni ◽  
Laszlo A. Erdodi
Keyword(s):  
Cognitive Ability ◽  
Verbal Memory ◽  
Visual Memory ◽  
Large Scale ◽  
Clinical Sample ◽  
Neuropsychological Test ◽  
Forced Choice ◽  
Control Group ◽  
Performance Validity ◽  
Two Samples

In this study we attempted to replicate the classification accuracy of the newly introduced Forced Choice Recognition trial (FCR) of the Rey Complex Figure Test (RCFT) in a clinical sample. We administered the RCFT FCR and the earlier Yes/No Recognition trial from the RCFT to 52 clinically referred patients as part of a comprehensive neuropsychological test battery and incentivized a separate control group of 83 university students to perform well on these measures. We then computed the classification accuracies of both measures against criterion performance validity tests (PVTs) and compared results between the two samples. At previously published validity cutoffs (≤16 & ≤17), the RCFT FCR remained specific (.84–1.00) to psychometrically defined non-credible responding. Simultaneously, the RCFT FCR was more sensitive to examinees’ natural variability in visual-perceptual and verbal memory skills than the Yes/No Recognition trial. Even after being reduced to a seven-point scale (18-24) by the validity cutoffs, both RCFT recognition scores continued to provide clinically useful information on visual memory. This is the first study to validate the RCFT FCR as a PVT in a clinical sample. Our data also support its use for measuring cognitive ability. Replication studies with more diverse samples and different criterion measures are still needed before large-scale clinical application of this scale.

Associating emotions with Wagner’s music: A developmental perspective

2016 ◽  
Vol 45 (5) ◽  
pp. 752-760 ◽  
Author(s):  
Paulo E. Andrade ◽  
Patrícia Vanzella ◽  
Olga V. C. A. Andrade ◽  
E. Glenn Schellenberg
Keyword(s):  
Academic Achievement ◽  
Young Children ◽  
University Students ◽  
Cognitive Ability ◽  
Dimensional Space ◽  
Two Dimensional ◽  
General Cognitive Ability ◽  
Music Training ◽  
Age Related ◽  
Musical Excerpts

Brazilian listeners ( N = 303) were asked to identify emotions conveyed in 1-min instrumental excerpts from Wagner’s operas. Participants included musically untrained 7- to 10-year-olds and university students in music (musicians) or science (nonmusicians). After hearing each of eight different excerpts, listeners made a forced-choice judgment about which of eight emotions best matched the excerpt. The excerpts and emotions were chosen so that two were in each of four quadrants in two-dimensional space as defined by arousal and valence. Listeners of all ages performed at above-chance levels, which means that complex, unfamiliar musical materials from a different century and culture are nevertheless meaningful for young children. In fact, children performed similarly to adult nonmusicians. There was age-related improvement among children, however, and adult musicians performed best of all. As in previous research that used simpler musical excerpts, effects due to age and music training were due primarily to improvements in selecting the appropriate valence. That is, even 10-year-olds with no music training were as likely as adult musicians to match a high- or low-arousal excerpt with a high- or low-arousal emotion, respectively. Performance was independent of general cognitive ability as measured by academic achievement but correlated positively with basic pitch-perception skills.

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