Genetic Factors and Neurocognitive Traits

CNS Spectrums ◽  
2002 ◽  
Vol 7 (4) ◽  
pp. 274-284 ◽  
Author(s):  
John A. Bates ◽  
Anil K. Malhotra
Keyword(s):  
Cognitive Abilities ◽  
Genetic Factors ◽  
Future Research ◽  
Cognitive Profiles ◽  
Show Evidence ◽  
Attention Memory ◽  
Genetic Contributions ◽  
Existing Data ◽  
Specific Cognitive Abilities

ABSTRACTGenetic contributions to phenotypic variation in general intelligence have been studied extensively. Less research has been conducted on genetic contributions to specific cognitive abilities, such as attention, memory, working memory, language, and motor functions. However, the existing data indicate a significant role of genetic factors in these abilities. Stages of information processing, such as sensory gating, early sensory registration, and cognitive analysis, also show evidence of genetic contributions. Recent molecular studies have begun to identify candidate genes for specific cognitive functions. Future research, identifying endophenotypes based on cognitive profiles of neuropsychiatric disorders, may also assist in the detection of genes that increase susceptibility to major psychiatric disorders.

Specific Cognitive Abilities at Work

2014 ◽  
Vol 13 (3) ◽  
pp. 117-122 ◽  
Author(s):  
Stefan Krumm ◽  
Lothar Schmidt-Atzert ◽  
Anastasiya A. Lipnevich
Keyword(s):  
Boundary Conditions ◽  
Cognitive Abilities ◽  
Current Paper ◽  
Future Research ◽  
Mental Ability ◽  
General Mental Ability ◽  
Work Related ◽  
Specific Cognitive Abilities

Recent findings suggest that the role of specific cognitive abilities in predicting work-related criteria may be critical and may add to the widely demonstrated importance of general mental ability. To summarize and organize these findings, the current paper puts forward two perspectives on the role of specific cognitive abilities in predicting work-related outcomes. Similarities and discrepancies of these perspectives are outlined together with suggestions for boundary conditions of the dominance of general versus specific cognitive abilities. Finally, avenues for future research within and across the two perspectives are discussed.

scholarly journals Diet, Genetics, and Disease: A Focus on the Middle East and North Africa Region

2012 ◽  
Vol 2012 ◽  
pp. 1-19 ◽  
Author(s):  
Akl C. Fahed ◽  
Abdul-Karim M. El-Hage-Sleiman ◽  
Theresa I. Farhat ◽  
Georges M. Nemer
Keyword(s):  
Middle East ◽  
Chronic Diseases ◽  
North Africa ◽  
Genetic Factors ◽  
Future Research ◽  
Micronutrient Deficiencies ◽  
Mena Region ◽  
Mena Countries ◽  
Nutritional Genomics

The Middle East and North Africa (MENA) region suffers a drastic change from a traditional diet to an industrialized diet. This has led to an unparalleled increase in the prevalence of chronic diseases. This review discusses the role of nutritional genomics, or the dietary signature, in these dietary and disease changes in the MENA. The diet-genetics-disease relation is discussed in detail. Selected disease categories in the MENA are discussed starting with a review of their epidemiology in the different MENA countries, followed by an examination of the known genetic factors that have been reported in the disease discussed, whether inside or outside the MENA. Several diet-genetics-disease relationships in the MENA may be contributing to the increased prevalence of civilization disorders of metabolism and micronutrient deficiencies. Future research in the field of nutritional genomics in the MENA is needed to better define these relationships.

scholarly journals Effects of hydration status on cognitive performance and mood

2014 ◽  
Vol 111 (10) ◽  
pp. 1841-1852 ◽  
Author(s):  
Natalie A. Masento ◽  
Mark Golightly ◽  
David T. Field ◽  
Laurie T. Butler ◽  
Carien M. van Reekum
Keyword(s):  
Water Consumption ◽  
Cognitive Abilities ◽  
The Elderly ◽  
Future Research ◽  
Hydration Status ◽  
Fluid Regulation ◽  
Optimal Maintenance ◽  
And Function ◽  
The Impact

Although it is well known that water is essential for human homeostasis and survival, only recently have we begun to understand its role in the maintenance of brain function. Herein, we integrate emerging evidence regarding the effects of both dehydration and additional acute water consumption on cognition and mood. Current findings in the field suggest that particular cognitive abilities and mood states are positively influenced by water consumption. The impact of dehydration on cognition and mood is particularly relevant for those with poor fluid regulation, such as the elderly and children. We critically review the most recent advances in both behavioural and neuroimaging studies of dehydration and link the findings to the known effects of water on hormonal, neurochemical and vascular functions in an attempt to suggest plausible mechanisms of action. We identify some methodological weaknesses, including inconsistent measurements in cognitive assessment and the lack of objective hydration state measurements as well as gaps in knowledge concerning mediating factors that may influence water intervention effects. Finally, we discuss how future research can best elucidate the role of water in the optimal maintenance of brain health and function.

scholarly journals Declarative and Procedural Memory as Individual Differences in Second Language Aptitude

2018 ◽  
Author(s):  
Joshua Buffington ◽  
Kara Morgan-Short
Keyword(s):  
Second Language ◽  
Individual Differences ◽  
Second Language Acquisition ◽  
Cognitive Abilities ◽  
Memory Systems ◽  
Procedural Memory ◽  
Future Research ◽  
Language Aptitude

Domain-general approaches to second language acquisition (SLA) have considered how individual differences in cognitive abilities contribute to foreign language aptitude. Here, we specifically consider the role of two, long-term, cognitive memory systems, i.e., declarative and procedural memory, as individual differences in SLA. In doing so, we define and review evidence for the long-term declarative and procedural memory systems, consider theories that address a role for declarative and procedural memory in L2 acquisition, discuss evidence in support of the claims that these theories make, and conclude with discussion of important directions and questions for future research on the role of declarative and procedural memory as individual differences in assessing L2 aptitude.

Evolution of Artistic and Aesthetic Propensities through Female Competitive Ornamentation

2015 ◽  
Author(s):  
Marco A. C. Varella ◽  
Jaroslava Varella Valentova ◽  
Ana María Fernández
Keyword(s):  
Sex Differences ◽  
Sexual Selection ◽  
Future Research ◽  
Selective Pressures ◽  
Selection Processes ◽  
Show Evidence

This chapter highlights and discusses the role of women’s competitive ornamentation as one of the relevant, and so far overlooked, ancestral selective pressures in the evolution of artistic propensities. The authors critically discuss how and why sex differences and sexual selection processes acting on women have been disregarded for more than a decade. The authors review available convergent evidence about sex differences in aesthetics and artistic propensities showing that, overall, women outnumber men. Then the authors propose and show evidence that higher women’s inclination toward artistic domains, including ornamentation of body, behavior, and objects/places, can serve as a social arena for attracting/maintaining mates and dealing with rivals, primarily through self-promotion via competitive ornamentation. The chapter concludes by developing connections with related theories that broaden the scope of the field and highlight predictions for future research.

scholarly journals Time-of-Day Differences in Treatment-Related Habit Strength and Adherence

2020 ◽  
Author(s):  
L Alison Phillips ◽  
Edith Burns ◽  
Howard Leventhal
Keyword(s):  
Electronic Monitoring ◽  
Time Of Day ◽  
Habit Strength ◽  
Future Research ◽  
Contextual Cues ◽  
Adherence Data ◽  
Show Evidence ◽  
Exact Timing

Abstract Background Many of our daily behaviors are habitual, occurring automatically in response to learned contextual cues, and with minimal need for cognitive and self-regulatory resources. Behavioral habit strength predicts adherence to actions, including to medications. The time of day (morning vs. evening) may influence adherence and habit strength to the degree that stability of contexts/routines varies throughout the day. Purpose The current study evaluates whether patients are more adherent to morning versus evening doses of medication and if morning doses show evidence of greater habit strength than evening doses. Methods Objective adherence data (exact timing of pill dosing) were collected in an observational study by electronic monitoring pill bottles in a sample of patients on twice-daily pills for Type 2 diabetes (N = 51) over the course of 1 month. Results Data supported the hypothesis that patients would miss fewer morning than evening pills. However, counter to the hypothesis, variability in dose timing (an indicator of habit strength) was not significantly different for morning versus evening pills. Conclusions Findings suggest that medication adherence may be greater in the morning than in the evening. However, more research is needed to evaluate the role of habitual action in this greater adherence. Furthermore, future research should evaluate the validity of behavioral timing consistency as an indicator of habit strength.

scholarly journals The Role of General and Specific Cognitive Abilities in Predicting Performance of Three Occupations: Evidence from Bifactor Models

2021 ◽  
Vol 9 (3) ◽  
pp. 40
Author(s):  
Khalid ALMamari ◽  
Anne Traynor
Keyword(s):  
Job Performance ◽  
Cognitive Abilities ◽  
Predictive Power ◽  
Relative Contribution ◽  
Predicting Performance ◽  
Bifactor Models ◽  
Predictive Relations ◽  
Specific Cognitive Abilities

Cognitive abilities are related to job performance. However, there is less agreement about the relative contribution of general versus specific cognitive abilities to job performance. Similarly, it is not clear how cognitive abilities operate in the context of complex occupations. This study assessed the role of cognitive abilities on the performance of three aviation-related jobs: flying, navigation, and air battle management (ABM). Correlated-factor and bifactor models were used to draw a conclusion about the predictive relations between cognitive abilities and job performance. Overall, the importance of particular cognitive abilities tends to vary across the three occupations, and each occupation has different sets of essential abilities. Importantly, the interplay of general versus specific abilities is different across occupations, and some specific abilities also show substantial predictive power.

Refining our understanding of the “elephant in the room”

2020 ◽  
Vol 43 ◽  
Author(s):  
Andrew Whiten
Keyword(s):  
Social Cognition ◽  
Cultural Evolution ◽  
Cognitive Abilities ◽  
Critical Factors ◽  
Technological Culture

Abstract The authors do the field of cultural evolution a service by exploring the role of non-social cognition in human cumulative technological culture, truly neglected in comparison with socio-cognitive abilities frequently assumed to be the primary drivers. Some specifics of their delineation of the critical factors are problematic, however. I highlight recent chimpanzee–human comparative findings that should help refine such analyses.

Clinical Decision-Making for Stroke and Aphasia in the Older Adult

2009 ◽  
Vol 14 (1) ◽  
pp. 4-11 ◽  
Author(s):  
Jacqueline Hinckley
Keyword(s):  
Executive Function ◽  
Cerebrovascular Disease ◽  
Cognitive Abilities ◽  
Clinical Decision Making ◽  
Clinical Decision ◽  
Cognitive Profile ◽  
Focal Lesion ◽  
Cognitive Profiles ◽  
Supportive Communication ◽  
Spaced Retrieval

Abstract A patient with aphasia that is uncomplicated by other cognitive abilities will usually show a primary impairment of language. The frequency of additional cognitive impairments associated with cerebrovascular disease, multiple (silent or diagnosed) infarcts, or dementia increases with age and can complicate a single focal lesion that produces aphasia. The typical cognitive profiles of vascular dementia or dementia due to cerebrovascular disease may differ from the cognitive profile of patients with Alzheimer's dementia. In order to complete effective treatment selection, clinicians must know the cognitive profile of the patient and choose treatments accordingly. When attention, memory, and executive function are relatively preserved, strategy-based and conversation-based interventions provide the best choices to target personally relevant communication abilities. Examples of treatments in this category include PACE and Response Elaboration Training. When patients with aphasia have co-occurring episodic memory or executive function impairments, treatments that rely less on these abilities should be selected. Examples of treatments that fit these selection criteria include spaced retrieval and errorless learning. Finally, training caregivers in the use of supportive communication strategies is helpful to patients with aphasia, with or without additional cognitive complications.

The Validity of Specific Cognitive Abilities for the Prediction of Training Success in Germany

2014 ◽  
Vol 13 (3) ◽  
pp. 123-133 ◽  
Author(s):  
Wiebke Goertz ◽  
Ute R. Hülsheger ◽  
Günter W. Maier
Keyword(s):  
Cognitive Abilities ◽  
Personnel Selection ◽  
Meta Analysis ◽  
Mental Ability ◽  
Occupational Category ◽  
General Mental Ability ◽  
Training Success ◽  
Specific Cognitive Abilities ◽  
Better Than

General mental ability (GMA) has long been considered one of the best predictors of training success and considerably better than specific cognitive abilities (SCAs). Recently, however, researchers have provided evidence that SCAs may be of similar importance for training success, a finding supporting personnel selection based on job-related requirements. The present meta-analysis therefore seeks to assess validities of SCAs for training success in various occupations in a sample of German primary studies. Our meta-analysis (k = 72) revealed operational validities between ρ = .18 and ρ = .26 for different SCAs. Furthermore, results varied by occupational category, supporting a job-specific benefit of SCAs.

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