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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.
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...
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,...

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Related Experiment Video

Updated: Jun 11, 2026

Automated Visual Cognitive Tasks for Recording Neural Activity Using a Floor Projection Maze
11:15

Automated Visual Cognitive Tasks for Recording Neural Activity Using a Floor Projection Maze

Published on: February 20, 2014

Cortical temporal dynamics of visually guided behavior.

Leighton B N Hinkley1, Srikantan S Nagarajan, Sarang S Dalal

  • 1Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94143, USA.

Cerebral Cortex (New York, N.Y. : 1991)
|July 6, 2010
PubMed
Summary
This summary is machine-generated.

Brain activity in the posterior parietal cortex (PPC) and premotor cortex (PMC) differs between saccades and reaching. These distinct temporal patterns reveal concurrent serial and parallel processing during visually guided actions.

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

Published on: October 24, 2012

Related Experiment Videos

Last Updated: Jun 11, 2026

Automated Visual Cognitive Tasks for Recording Neural Activity Using a Floor Projection Maze
11:15

Automated Visual Cognitive Tasks for Recording Neural Activity Using a Floor Projection Maze

Published on: February 20, 2014

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

Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Sensorimotor Control

Background:

  • Temporal dynamics of cortical activation during visually guided behaviors remain largely unknown.
  • Understanding sensorimotor integration is crucial for explaining visually guided actions.

Purpose of the Study:

  • To investigate the temporal dynamics of cortical activation in the posterior parietal cortex (PPC) and premotor cortex (PMC) during saccades and visually guided reaching.
  • To differentiate spatial-temporal processing patterns between saccades and reaching.

Main Methods:

  • Magnetoencephalography (MEG) was employed to measure brain activity.
  • Novel time-frequency reconstructions of MEG (tfMEG) data were utilized.
  • Analysis focused on posterior parietal cortex (PPC) and premotor cortex (PMC) during saccades and reaching.

Main Results:

  • Saccade preparation showed early high-gamma activity over frontal eye fields (FEFs).
  • Saccade execution involved high-gamma activity progressing from FEFs to visual cortex.
  • Reach preparation exhibited distinct early high-gamma activity in dorsal PMC and late beta activity in motor cortex and PPC.
  • Reaching involved high-gamma activity progressing from sensorimotor cortex and PMC to parietooccipital cortex.
  • Observed patterns align with known macaque sensorimotor network connectivity.

Conclusions:

  • Distinct spatial-temporal processing patterns were identified for saccades and reaching.
  • Evidence supports concurrent serial and parallel processing in sensorimotor integration for visually guided behaviors.
  • Findings provide direct evidence for the temporal dynamics of human sensorimotor networks.