Cognitive Abilities and Testing

Cognitive capacity and control in the evolution of intelligence

The paper develops an evolutionary model of working memory to show how capacity and control interact, with capacity being prioritized due to its role in enabling control.

Mental Operations on Long-term Memory do not Require a Sustained Increase in Working Memory Engagement

The paper investigates whether mental operations on long-term memory require sustained working memory engagement, finding that such engagement is transient rather than sustained.

Mismatch Negativity and General Cognitive Ability - A Meta-Analysis

This meta-analysis examines the relationship between general cognitive ability and mismatch negativity (MMN) in healthy adults, finding small but significant associations.

A Scalable Touchscreen-Based Spatial Working Memory Task for Cross-Species Research

This paper introduces a touchscreen-based spatial working memory task for marmosets and humans, showing that accuracy declines with longer delays and smaller spatial separations, and that these factors interact.

Experimental validation of graded arithmetic and linguistic working-memory tasks using behavioral and cerebral hemodynamic measures

This study validates graded arithmetic and linguistic working-memory tasks using behavioral and cerebral hemodynamic measures, finding that performance and physiological responses change with task difficulty.

Feature-specific environmental contributions to human cortical architecture revealed by twin brainprints

This study identifies how different environmental factors affect cortical architecture in twins, showing persistent early life effects and training-induced changes in adulthood.

Chess expertise improves rule-guided flexibility and visual working memory precision

This study finds that adolescent chess players show improved rule-guided flexibility and visual working memory precision compared to non-players.

Estimating the fraction of variance of crystallized intelligence explained by cortical surface area in early adolescence

This study compares models to estimate how much variance in crystallized intelligence is explained by cortical surface area in adolescents using ABCD data.

Charting the cognitive development of children using adult 'polygenic g scores'

This study uses adult polygenic g scores to track cognitive development in 10,000 children, showing increasing predictive power over time.

Neural alignment of knowledge structures relates to human intelligence

The paper shows that neural alignment of new knowledge to existing structures in the parietal cortex relates to individual differences in fluid intelligence.

Developmental Correlates of Epigenetic and Polygenic Indices of Cognition and Educational Attainment from Birth to Young Adulthood

The paper examines developmental correlates of epigenetic and polygenic indices of cognition and education from birth to young adulthood, finding Epigenetic-g is plastic in early childhood and captures distinct variation from polygenic indices.

Human Cognitive Ability and the P300 Event-Related Brain Potential

This paper conducts a meta-analysis of studies linking general cognitive ability to P300 brain potential amplitudes and latencies, finding small positive and negative associations respectively.

Prefrontal working memory activity partially mediates link between enriched neighborhood environments and episodic memory among 9-13-year-olds

The paper examines how enriched neighborhood environments affect episodic memory in children through prefrontal cortex activity.

Neural information sharing across the orienting attentional network predicts intelligence in children

This study links intelligence in children to neural efficiency in the attentional orienting network, showing reduced information sharing correlates with higher IQ.

Mechanistic Link between Executive Functions and Higher Cognition: Evidence from Psychometric Modeling and Brain Stimulation

This study uses psychometric modeling and brain stimulation to explore how executive functions relate to higher cognition, finding that working memory updating mediates cognitive effects.

Cerebral cortical structures linked to intelligence

This study identifies the dorsolateral prefrontal cortex as strongly linked to intelligence using large-scale MRI data and Mendelian randomization, with additional regions showing causal relationships.

Human intelligence relates to neural measures of cognitive map formation

The paper links fluid intelligence to neural mechanisms of cognitive map formation using fMRI and cognitive tests, showing a correlation between gf and map-like encoding of object positions.

Neural correlates differ between crystallized and fluid intelligence in adolescents

This study identifies distinct neural and molecular correlates of fluid and crystallized intelligence in adolescents using neuroimaging and transcriptomic data from the ABCD cohort.

Cleaner wrasse failed in early testing stages of both visual and spatial Working Memory paradigms

The paper tests working memory in cleaner wrasse and finds negative results, challenging previous positive findings in other fish species.

Mental calculation speeds surpass known limits for high-level cognition

The paper analyzes mental calculation speeds in international competitions, finding rates exceeding 215 bit/s, surpassing previous estimates for high-level cognition.

Genetic association between posterior parietal cortex and intelligence

This study identifies genetic associations between posterior parietal cortex and intelligence, suggesting discrete intelligence capabilities.

A tale of two n-backs: Diverging associations of dorsolateral prefrontal cortex activation with n-back task performance

This study compares activation-performance relationships in two n-back working memory tasks across datasets, finding diverging associations in specific brain regions.

Single-Session Fast-Paced Video Gaming Boosts Working-Memory Precision via Prefrontal Alpha Oscillations

A single session of fast-paced video gaming improves working-memory precision and increases prefrontal alpha oscillations.

Brain maps of general cognitive function and spatial correlations with neurobiological cortical profiles

The paper identifies brain regions most related to general cognitive function and links them to neurobiological properties using meta-analysis and multimodal cortical maps.

Intelligence and Cognitive Flexibility Selectively Modulate Working Memory Functioning

This study examines how intelligence and cognitive flexibility influence working memory through brain connectomic gradients and task performance in healthy adults.

GABA-ergic inhibition in human hMT+ predicts visuo-spatial intelligence mediated through the frontal cortex

This study shows that GABA levels in hMT+ and frontal-hMT+ connectivity correlate with visuo-spatial intelligence, with frontal connectivity mediating the effect of hMT+ GABA.

Linking cognitive integrity to working memory dynamics in the aging human brain

This study examines working memory dynamics in older adults and MCI patients, finding age-related declines in memory quality and links to cognitive integrity.

Assessing Cognitive Functions Remotely Using a Music-Game-Like Program

This study evaluates the Ipsilon Test, a web-based music-game program, as a tool for assessing and training cognitive functions in older adults, finding correlations with standard cognitive measures and improvements in inhibitory control.

Baseline Pupil Size Seems Unrelated to Fluid Intelligence, Working Memory Capacity, and Attentional Control

This study investigates the relationship between resting-state pupil size and cognitive abilities, finding no significant associations after controlling for confounding variables.

Decoding the content of working memory in school-aged children

This study uses multivariate pattern analysis on EEG data from children to decode the content of working memory during a computerized task, showing reliable decoding of information categories across ages.