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Related Concept Videos

Association Areas of the Cortex01:21

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,...
Working Memory01:24

Working Memory

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 information.
Motor and Sensory Areas of the Cortex01:14

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 Cortex01:23

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...
Parallel Processing01:20

Parallel Processing

The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
Anatomy of the Brain: Major Regions01:20

Anatomy of the Brain: Major Regions

The brain is the most complex organ in the human body. It consists of four main parts: the cerebrum, diencephalon, cerebellum, and brainstem.
The cerebrum is the largest section of the brain and divides into left and right hemispheres, separated by a deep fissure. The cerebral outer layer of grey matter — the cerebral cortex — comprises elevations called gyri and shallow groves called sulci. The inner portion of white matter includes long nerve fibers known as axons, which connect various areas...

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Related Experiment Video

Updated: Jun 20, 2026

Modeling the Functional Network for Spatial Navigation in the Human Brain
05:55

Modeling the Functional Network for Spatial Navigation in the Human Brain

Published on: October 13, 2023

Overlapping functional anatomy for working memory and visual search.

Elaine J Anderson1, S K Mannan, G Rees

  • 1Department of Clinical Neuroscience, Imperial College London, Charing Cross Hospital, St. Dunstan's Road, London W6 8RP, UK. e.anderson@fil.ion.ucl.ac.uk

Experimental Brain Research
|September 17, 2009
PubMed
Summary
This summary is machine-generated.

Inefficient visual search shares brain regions with spatial and non-spatial working memory. This overlap in the right frontal cortex likely causes interference when performing both tasks simultaneously.

More Related Videos

Co-analysis of Brain Structure and Function using fMRI and Diffusion-weighted Imaging
17:06

Co-analysis of Brain Structure and Function using fMRI and Diffusion-weighted Imaging

Published on: November 8, 2012

Related Experiment Videos

Last Updated: Jun 20, 2026

Modeling the Functional Network for Spatial Navigation in the Human Brain
05:55

Modeling the Functional Network for Spatial Navigation in the Human Brain

Published on: October 13, 2023

Co-analysis of Brain Structure and Function using fMRI and Diffusion-weighted Imaging
17:06

Co-analysis of Brain Structure and Function using fMRI and Diffusion-weighted Imaging

Published on: November 8, 2012

Area of Science:

  • Cognitive Neuroscience
  • Neuroimaging

Background:

  • Behavioral studies highlight spatial and non-spatial working memory's role in inefficient visual search.
  • Previous research indicates dual-task paradigms are crucial for understanding these interactions.

Purpose of the Study:

  • To investigate brain area overlap between visual search and working memory using fMRI.
  • To determine if shared neural resources underlie behavioral interference effects.

Main Methods:

  • Functional magnetic resonance imaging (fMRI) was employed.
  • Visually matched spatial and non-spatial working memory tasks were used concurrently with inefficient visual search.

Main Results:

  • Significant dual-task interference was confirmed when inefficient visual search was combined with either working memory task.
  • Substantial overlap was observed in the cortical networks activated by inefficient search and both working memory tasks.

Conclusions:

  • Behavioral interference effects likely stem from competition for shared cortical processes.
  • The inferior and middle frontal cortex of the right hemisphere is proposed as the primary locus for this interference.
  • These regions support attentional selection and information manipulation, suggesting competition for these mechanisms.