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Related Concept Videos

Implicit Memories01:24

Implicit Memories

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Implicit memories, also known as non-declarative memories, are long-term memories that function outside of conscious awareness. These memories influence behavior and skills without explicit knowledge. This type of memory is evident in tasks like playing tennis, snowboarding, and texting. Implicit memory has three subsystems: procedural memory, conditioning, and priming. This type of memory is essential in various activities, from everyday tasks to specialized skills.
One key aspect of implicit...
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Association Areas of the Cortex01:21

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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: Sep 23, 2025

In Vivo Wireless Optogenetic Control of Skilled Motor Behavior
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Gaze-specific motor memories for hand-reaching.

Naotoshi Abekawa1, Sho Ito1, Hiroaki Gomi1

  • 1NTT Communication Science Laboratories, Nippon Telegraph and Telephone Corporation, 3-1 Wakamiya Morinosato, Atsugi, Kanagawa 243-0198, Japan.

Current Biology : CB
|May 17, 2022
PubMed
Summary

Motor learning involves internal models. This study shows motor memories are learned separately based on gaze coordinates, allowing simultaneous learning of opposing rotations and suggesting gaze influences motor learning frameworks.

Keywords:
context-dependent learningeye-hand coordinationgaze-centered coordinatesgaze-reaching relationshiphuman motor learninglearning generalizationmultiple internal modelsvisuomotor control

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Area of Science:

  • Neuroscience
  • Motor Control
  • Motor Learning

Background:

  • Adaptive motor behaviors rely on internal models linking sensory input to limb movement.
  • Motor planning transforms visual targets (gaze-centered) to motor commands (limb-centered) via workspace coordinates.
  • The role of gaze coordinates in motor learning remains largely unexplored.

Purpose of the Study:

  • To investigate whether motor learning is associated with gaze coordinates.
  • To determine if gaze states influence the formation and recall of internal models for reaching.
  • To examine the spatial framework provided by gaze-dependent representations in motor learning.

Main Methods:

  • Visuomotor rotation experiments with foveal and peripheral targets.
  • Force-field adaptation tasks.
  • Analysis of reach adaptation generalization across different visual fields.

Main Results:

  • Motor memories for reaching are learned independently based on target location in gaze coordinates.
  • Opposing visuomotor rotations can be learned simultaneously when associated with distinct gaze targets.
  • Gaze-dependent learning was observed in force-field adaptation.
  • Adaptation generalization was limited across central, right, and left visual fields.

Conclusions:

  • Gaze states play a crucial role in forming and recalling multiple internal models for reaching.
  • Gaze-dependent spatial representations provide a framework for context-dependent motor learning.
  • This study offers novel insights into the neural mechanisms underlying motor adaptation and spatial coding.