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Related Concept Videos

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.
Auditory Pathway01:15

Auditory Pathway

Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...
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,...
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...
Lobes of the Cerebrum01:22

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.
Cerebral Hemispheres01:05

Cerebral Hemispheres

The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...

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Related Experiment Video

Updated: May 16, 2026

Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example
08:45

Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example

Published on: October 24, 2012

Auditory spatial attention representations in the human cerebral cortex.

Lingqiang Kong1, Samantha W Michalka, Maya L Rosen

  • 1Cognitive and Neural Systems.

Cerebral Cortex (New York, N.Y. : 1991)
|November 28, 2012
PubMed
Summary
This summary is machine-generated.

Auditory spatial attention does not use the intraparietal sulcus (IPS) map. Instead, the superior temporal gyrus and supramarginal gyrus encode spatial attention information without a cortical map.

Keywords:
auditionintraparietal sulcusmultivoxel pattern analysisspatial mapsvisuotopy

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Last Updated: May 16, 2026

Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example
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Functional Imaging of Auditory Cortex in Adult Cats using High-field fMRI
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Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Auditory Perception

Background:

  • Auditory spatial attention is crucial for separating and selecting sounds.
  • Neural mechanisms of auditory spatial attention are not fully understood.
  • Previous research has not identified specific cortical regions for auditory spatial information processing.

Purpose of the Study:

  • To identify cortical regions supporting auditory spatial attention.
  • To test if auditory spatial attention uses visuospatial maps in the intraparietal sulcus (IPS).
  • To determine if auditory spatial information is encoded with or without explicit cortical maps.

Main Methods:

  • Functional magnetic resonance imaging (fMRI) was used.
  • Visuotopic IPS regions were mapped in individual subjects.
  • Auditory spatial attention effects were measured within IPS regions of interest.
  • Multivoxel pattern analysis (MVPA) was employed.

Main Results:

  • Auditory spatial attention effects did not overlap with visuotopic maps in the IPS.
  • Parietal regions activated by auditory attention lacked a discernible map structure.
  • The superior temporal gyrus and supramarginal gyrus showed significant information about spatial attention direction via MVPA.

Conclusions:

  • Auditory spatial information is likely coded without a cortical map representation.
  • Auditory and visual spatial attention employ different spatial coding schemes.
  • The findings challenge the multimodal spatial map hypothesis for auditory attention.