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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,...
Vision01:24

Vision

Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
Somatosensation01:33

Somatosensation

The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
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: Jun 2, 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

Ventral premotor cortex neuronal activity matches perceptual decisions.

Carlos Acuña1, Jose L Pardo-Vazquez

  • 1Laboratorios de Neurociencia, Departamento de Fisiología, Facultad de Medicina and Complejo Hospitalario Universitario, Universidad de Santiago de Compostela, Santiago de Compostela, Spain. carlos.acuna.castroviejo@usc.es

The European Journal of Neuroscience
|May 11, 2011
PubMed
Summary

Neurons in the ventral premotor cortex closely track behavioral choices during visual decision-making. This brain region

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Cross-Modal Multivariate Pattern Analysis
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Last Updated: Jun 2, 2026

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
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Published on: August 1, 2018

Measuring and Manipulating Functionally Specific Neural Pathways in the Human Motor System with Transcranial Magnetic Stimulation
09:52

Measuring and Manipulating Functionally Specific Neural Pathways in the Human Motor System with Transcranial Magnetic Stimulation

Published on: February 23, 2020

Cross-Modal Multivariate Pattern Analysis
13:51

Cross-Modal Multivariate Pattern Analysis

Published on: November 9, 2011

Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Decision Neuroscience

Background:

  • The ventral premotor cortex (VPC) plays a role in decision-making processes.
  • Neuronal activity-behavior relationships in the VPC during visual decision-making remain uncharacterized.

Purpose of the Study:

  • To investigate neuronal discrimination and trial-to-trial coherence between neural activity and behavior in the VPC during visual decision-making.
  • To determine the temporal dynamics of neuronal sensitivity and coherence within the VPC.

Main Methods:

  • Single-unit recordings in monkeys performing a visual orientation discrimination task.
  • Signal detection theory analysis to quantify behavioral and neuronal sensitivity (d') and choice coherence.
  • Assessment of optimal encoding windows to analyze temporal evolution of neural signals.

Main Results:

  • A subset of VPC neurons exhibited sensitivity close to behavioral sensitivity.
  • Trial-to-trial coherence between neuronal and behavioral choices approached 100% for some neurons.
  • Control tasks ruled out motor-related activity as an explanation for the observed neural signals.

Conclusions:

  • Ventral premotor cortex activity significantly explains behavioral performance in visual decision-making.
  • Neural activity in the VPC predicts individual trial choices, highlighting its crucial role in perceptual decision computations.