Related Experiment Video
Updated: Dec 12, 2025
06:57
Utilizing Electroencephalography Measurements for Comparison of Task-Specific Neural Efficiencies: Spatial Intelligence Tasks
Published on: August 9, 2016
11.7K
Activity in the fronto-parietal multiple-demand network is robustly associated with individual differences in working
Moataz Assem1, Idan A Blank2, Zachary Mineroff3
1MRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, UK.
Summary
Higher activity in the brain's multiple-demand (MD) network correlates with better executive functions and fluid intelligence. This study clarifies the positive association, contrasting with prior conflicting findings.
Area of Science:
- Cognitive Neuroscience
- Neuroimaging
Background:
- Executive abilities and fluid intelligence are linked to the fronto-parietal multiple-demand (MD) network.
- Previous fMRI studies show conflicting results regarding MD network activation and executive function.
Purpose of the Study:
- To investigate the relationship between MD network activity and individual differences in executive abilities and fluid intelligence.
- To clarify conflicting findings in prior research by using a large sample size and robust methodology.
Main Methods:
- Functional magnetic resonance imaging (fMRI) on a large sample (n=216) to measure brain activity.
- Participants performed a spatial working memory task during fMRI.
- Fluid intelligence was assessed independently (n=114).
Main Results:
- Stronger MD network activity was robustly associated with more accurate and faster responses in the working memory task.
- MD network activity positively correlated with independently measured fluid intelligence.
- A weak association between language network activity and working memory performance was abolished when controlling for MD activity.
Conclusions:
- Individual differences in executive abilities and fluid intelligence are selectively and positively associated with MD network activity.
- The findings support lesion studies and highlight the importance of MD network function.
- Methodological issues like unreliable measures and small sample sizes can lead to erroneous negative associations.
Keywords:
Executive functionsFluid intelligenceFronto-parietalIndividual differencesLanguageMultiple-demandMore Related Videos
10:38A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
Published on: July 16, 2015
13.9K
10:43Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity
Published on: July 1, 2014
15.6K
Related Concept Videos
01:24Working Memory
650
Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...
650
01:30Information Processing Approach
377
The information-processing theory of cognitive development centers on fundamental mental processes, including attention, memory, and problem-solving skills. Researchers in this field examine how cognitive abilities, such as working memory, evolve and influence children's overall development. Studies indicate that children with stronger working memory tend to excel in reading comprehension, math, and problem-solving compared to peers with less efficient memory skills. Low working memory is...
377
01:14Role of Cerebellum and Prefrontal Cortex in Memory
868
The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the...
868
01:19High-Level and Low-Level Awareness
539
Controlled processes in human consciousness represent high-alert mental states where individuals deliberately focus their attention on achieving specific goals. Controlled processes can be seen in situations like mastering new technology, where a person might become so absorbed that they ignore surrounding distractions. Such processes involve selective attention, requiring one to concentrate on particular elements of experience while disregarding others. These are governed by executive...
539
01:30Biological Influences on Intelligence
399
Intelligence is often thought to be linked to brain size, but the relationship is more complex than that. While brain size does correlate modestly with some abilities, like verbal skills, the connection is weaker for others, such as spatial reasoning. Other factors, like brain structure, also play crucial roles. For instance, despite Einstein's smaller-than-average brain, his parietal cortex, which is involved in spatial reasoning, was 15% wider, suggesting that neural density might matter...
399
01:20Multiple Intelligences Theory
8.6K
Howard Gardner's theory of Multiple Intelligence proposes that there are nine distinct types of intelligence, each reflecting different ways of interacting with the world. Introduced in 1983 and expanded in subsequent years, Gardner's framework challenges the traditional notion of a single, generalized intelligence.
8.6K