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Related Concept Videos

Synesthesia01:27

Synesthesia

Synesthesia is a remarkable condition where stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway. People with synesthesia experience a blending or crossing of their senses, such as sight and sound, leading to cross-modal sensations. In this condition, the stimulation of one sense, such as hearing a number or musical note, triggers an experience of another sense, like sensing a specific color, taste, or smell. People...
Subliminal Perception01:15

Subliminal Perception

Subliminal perception refers to the processing of sensory information that occurs below the level of conscious awareness. Researchers study subliminal perception by presenting a stimulus, such as a word or image, very quickly, typically around 50 milliseconds. This rapid presentation is often followed by another stimulus, such as a pattern of dots or lines, which blocks further mental processing of the initial stimulus. As a result, if participants cannot identify the initial stimulus better...
Sensory Perception: Organization of the Somatosensory System01:11

Sensory Perception: Organization of the Somatosensory System

The somatosensory system is the central and peripheral nervous system component that senses and processes touch, pressure, pain, temperature, and body position or proprioception. The process of sensation takes place at three levels:
The receptor level:
The receptor level is the first stage of sensation. It involves the detection of a stimulus by specialized sensory receptors. The stimulus must arrive within the receptor's receptive field. Next, the receptor converts the energy of the stimulus...
Introduction to Special Senses01:26

Introduction to Special Senses

Sensory receptors play an integral part in comprehending our external and internal environments. They receive diverse stimuli, converting them into the nervous system's electrochemical signals. This conversion occurs as the stimulus alters the sensory neuron's cell membrane potential, instigating the generation of an action potential. This action potential is subsequently transmitted to the central nervous system (CNS), which integrates with other sensory data or higher cognitive functions.
Perception01:28

Perception

Perception is a fundamental psychological process that enables individuals to organize, interpret, and consciously experience sensory information. This process is crucial for understanding and interacting with the world around us. It includes both bottom-up and top-down processing, each playing a distinct role in how we perceive our environment.
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
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 16, 2026

Assessment of Audio-Tactile Sensory Substitution Training in Participants with Profound Deafness Using the Event-Related Potential Technique
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Assessment of Audio-Tactile Sensory Substitution Training in Participants with Profound Deafness Using the Event-Related Potential Technique

Published on: September 7, 2022

Multisensory perceptual learning and sensory substitution.

Michael J Proulx1, David J Brown2, Achille Pasqualotto2

  • 1Department of Psychology, University of Bath, UK.

Neuroscience and Biobehavioral Reviews
|December 11, 2012
PubMed
Summary

Neural plasticity allows adults to learn new skills. Research on perceptual learning and sensory substitution devices can advance our understanding of how the brain adapts to new sensory inputs.

Keywords:
BlindnessMultisensory processingNeural plasticityPerceptual learningReverse hierarchy theorySensory deprivationSensory substitution

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Sensory Perception

Background:

  • Neural plasticity enables functional neuroanatomy changes in adults.
  • Perceptual learning studies reveal mechanisms of brain adaptation.
  • Growing interest in multisensory perceptual learning.

Purpose of the Study:

  • Examine how perceptual learning research informs sensory substitution devices.
  • Investigate how sensory substitution advances perceptual learning understanding.
  • Explore the brain's metamodal organization.

Main Methods:

  • Review of perceptual learning research, focusing on visual, auditory, and multisensory modalities.
  • Analysis of sensory substitution device applications for blindness.
  • Theoretical examination of reverse hierarchy theory and metamodal brain function.

Main Results:

  • Advances in perceptual learning research benefit sensory substitution device development.
  • Sensory substitution research enhances understanding of perceptual learning and sensory deprivation.
  • Metamodal view of the brain, defined by computation over sensory specificity, is supported.

Conclusions:

  • Perceptual learning and sensory substitution are mutually beneficial research areas.
  • Understanding sensory substitution offers insights into general perceptual learning mechanisms.
  • The brain's functional organization may be best understood in metamodal terms.