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Related Concept Videos

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,...
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.
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.
Encoding01:19

Encoding

Information enters the brain through encoding, which is the input of information into the memory system. Once sensory information is received from the environment, the brain labels or codes it. The information is then organized with similar information and connected to existing concepts. Encoding occurs through automatic processing and effortful processing.
Automatic processing involves the encoding of details like time, space, frequency, and the meaning of words, usually done without conscious...
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...

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Related Experiment Video

Updated: May 13, 2026

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
07:08

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings

Published on: August 1, 2018

Independent category and spatial encoding in parietal cortex.

Chris A Rishel1, Gang Huang, David J Freedman

  • 1Department of Neurobiology, The University of Chicago, Chicago, IL 60637, USA.

Neuron
|March 12, 2013
PubMed
Summary
This summary is machine-generated.

The posterior parietal cortex, crucial for spatial tasks, also processes nonspatial information like visual categories. Researchers found that spatial signals do not disrupt category information in the lateral intraparietal area, suggesting independent encoding.

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Related Experiment Videos

Last Updated: May 13, 2026

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
07:08

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Published on: August 1, 2018

A Large Lateral Craniotomy Procedure for Mesoscale Wide-field Optical Imaging of Brain Activity
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Published on: May 7, 2017

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12:27

Large-scale Reconstructions and Independent, Unbiased Clustering Based on Morphological Metrics to Classify Neurons in Selective Populations

Published on: February 15, 2017

Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Systems Neuroscience

Background:

  • The posterior parietal cortex is traditionally linked to spatial functions like attention and eye movements.
  • Emerging research highlights its role in nonspatial cognitive factors, including visual categorization and task rules.
  • The interplay between spatial and nonspatial signal encoding in this brain region remains unclear.

Purpose of the Study:

  • To investigate the relationship between spatial and nonspatial cognitive encoding in the posterior parietal cortex.
  • To determine if nonspatial signals are robustly represented despite strong spatial neuronal activity.
  • To explore the functional independence of spatial and cognitive representations in the lateral intraparietal area.

Main Methods:

  • Monkeys were trained on a visual categorization task involving saccadic eye movements.
  • Neuronal activity was recorded in the lateral intraparietal (LIP) area during the task.
  • The study directly compared the encoding of nonspatial category information and spatial saccade-related responses.

Main Results:

  • Category signals in the LIP area were robustly encoded.
  • Strong saccade-related neuronal responses had minimal impact on the encoding of category information.
  • Evidence suggests independent neural mechanisms for spatial and nonspatial information processing in LIP.

Conclusions:

  • The lateral intraparietal area independently encodes both spatial and nonspatial cognitive information.
  • These findings support a broader role for the parietal cortex in nonspatial cognitive functions.
  • The brain region demonstrates a capacity for parallel processing of diverse cognitive signals.