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Related Concept Videos

Association Areas of the Cortex

Association Areas of the Cortex

Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...

Motor and Sensory Areas of the Cortex

Motor and Sensory Areas of the Cortex

The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex.

Somatosensory, Motor, and Association Cortex

Somatosensory, Motor, and Association Cortex

The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at the...

Neural Circuits

Neural Circuits

Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...

Lobes of the Cerebrum

Lobes of the Cerebrum

The cerebral cortex, a critical structure of the brain, is intricately divided into two hemispheres, each consisting of four distinct lobes: occipital, temporal, frontal, and parietal. These lobes function cooperatively to regulate various cognitive and sensory functions, forming the basis of our complex neural capabilities.
Frontal lobe
The frontal lobes, located behind the forehead, are the command center of our brain, controlling personality, intelligence, and voluntary muscle movements.

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Related Experiment Video

Updated: Jul 4, 2026

Intracortical Inhibition Within the Primary Motor Cortex Can Be Modulated by Changing the Focus of Attention

Intracortical Inhibition Within the Primary Motor Cortex Can Be Modulated by Changing the Focus of Attention

Published on: September 11, 2017

Complex, multifocal, individual-specific attention-related cortical functional circuits.

Luis F H Basile¹

¹Laboratory of Psychophysiology, Faculdade de Psicología e Fonoaudiologia, UMESP Division of Functional Neurosurgery, Institute of Psychiatry, Brazil. lbasile@usp.br

Biological Research

|June 26, 2008

Summary

This summary is machine-generated.

Brain activity related to attention is highly individual-specific, not universal across all people. This suggests current functional mapping methods need revision, moving away from group averaging to understand individual brain function better.

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Cross-Modal Multivariate Pattern Analysis

Cross-Modal Multivariate Pattern Analysis

Published on: November 9, 2011

Related Experiment Videos

Last Updated: Jul 4, 2026

Intracortical Inhibition Within the Primary Motor Cortex Can Be Modulated by Changing the Focus of Attention

Intracortical Inhibition Within the Primary Motor Cortex Can Be Modulated by Changing the Focus of Attention

Published on: September 11, 2017

Multiscale Investigations of Cortical Processing by Integrating Laminar Polytrodes and Optogenetics with Micro Electrocorticography in Rodents

Multiscale Investigations of Cortical Processing by Integrating Laminar Polytrodes and Optogenetics with Micro Electrocorticography in Rodents

Published on: May 23, 2025

Cross-Modal Multivariate Pattern Analysis

Cross-Modal Multivariate Pattern Analysis

Published on: November 9, 2011

Area of Science:

Neuroscience
Cognitive Neuroscience
Brain Imaging

Background:

Individual patterns of central nervous system (CNS) activity challenge traditional functional mapping.
Previous work identified variable attention-related Slow Potential (SP) generating cortical areas across individuals.
This study investigates other physiological markers of attention to identify individual-specific cortical activity patterns.

Purpose of the Study:

To identify individual-specific cortical areas active during attention using novel analysis of EEG data.
To explore physiological indexes of attention beyond traditional event-related potentials.
To challenge the assumption of universal cortical function through individual-specific analysis.

Main Methods:

Applied latency-corrected peak averaging to oscillatory bursts from 124-channel EEG recordings.
Modeled generators of brain activity using current density reconstruction.
Analyzed event-related total power, task-induced band-power, and inter-electrode phase-coherence.

Main Results:

Detected two bands of attention-induced beta oscillations (approx. 21 and 25 Hz) with complex, multi-focal, and individually variable cortical distributions.
Found that the generators of task-induced oscillations largely overlap with individual-specific cortical areas active during resting states.
Demonstrated that attention-related electrical cortical activity is highly individual-specific, unlike sensory-evoked potentials.

Conclusions:

Attention-related cortical activity is significantly individual-specific, established even during wakefulness.
Functional mapping requires abandoning group averaging and revising studies based on averaged data.
Results have critical implications for interpreting lesions, functional reorganization, and neurosurgical planning.