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Related Concept Videos

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.
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...
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.
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,...
Hierarchy of Motor Control01:18

Hierarchy of Motor Control

The hierarchy of motor control refers to the different levels of organization and processing involved in controlling movement in the body. These levels range from higher cortical areas involved in planning and decision-making to lower spinal cord reflexes that respond automatically to external stimuli.
Major Somatic Sensory Pathways01:28

Major Somatic Sensory Pathways

Sensory impulses related to touch, pressure, vibration, and proprioception from various body parts, such as the limbs, trunk, neck, and posterior head, travel to the cerebral cortex through the posterior column-medial lemniscus pathway. The pathway’s name derives from the two white-matter tracts that convey the impulses: the spinal cord's posterior column and the brainstem's medial lemniscus. First-order sensory neurons extend their axons into the spinal cord, forming the posterior columns...

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Related Experiment Video

Updated: May 12, 2026

Motor Imagery Performance Through Embodied Digital Twins in a Virtual Reality-Enabled Brain-Computer Interface Environment
10:14

Motor Imagery Performance Through Embodied Digital Twins in a Virtual Reality-Enabled Brain-Computer Interface Environment

Published on: May 10, 2024

Human sensorimotor cortex represents conflicting visuomotor mappings.

Kenji Ogawa1, Hiroshi Imamizu

  • 1Cognitive Mechanisms Laboratories, Advanced Telecommunications Research Institute International, Keihanna Science City, Kyoto 619-0288, Japan. k.ogawa@atr.jp

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
|April 12, 2013
PubMed
Summary
This summary is machine-generated.

Humans can learn and switch between conflicting sensorimotor skills. The brain

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Motor Control

Background:

  • Human adaptation to conflicting sensorimotor mappings is known.
  • Neural mechanisms for learning multiple, similar perturbations are unclear.

Purpose of the Study:

  • Investigate neural substrates representing multiple sensorimotor mappings.
  • Determine if distinct mappings can be classified using fMRI data.

Main Methods:

  • Participants adapted to simultaneous opposite visuomotor rotations (+90° and -90°).
  • Multivoxel pattern analysis (MVPA) of fMRI data was used.
  • Distinct target motion patterns dissociated kinematic differences.

Main Results:

  • Primary sensorimotor cortex and supplementary motor area activity patterns distinguished rotation types.
  • Classification accuracy exceeded chance levels in these regions.
  • Early visual cortex activity best classified low-level sensorimotor components like tracking error.

Conclusions:

  • Sensorimotor cortex represents distinct visuomotor mappings.
  • This representation enables joint learning and switching between conflicting skills.