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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...
Taste Buds and Receptors01:20

Taste Buds and Receptors

Gustation, or the sense of taste, is intrinsically linked to the anatomical structures located on the tongue. This organ's surface, along with the entirety of the oral cavity, is adorned with stratified squamous epithelium. Evident on the tongue are elevated structures known as papillae (singular = papilla), which house the mechanisms for the transduction of gustatory stimuli. Four distinct types of papillae exist, each identified by their unique morphological attributes: the circumvallate,...
Gustation01:43

Gustation

Gustation is a chemical sense that, along with olfaction (smell), contributes to our perception of taste. It starts with the activation of receptors by chemical compounds (tastants) dissolved in the saliva. The saliva and filiform papillae on the tongue distribute the tastants and increase their exposure to the taste receptors.
The Physiology of Taste01:24

The Physiology of Taste

The perception of a salty flavor is facilitated by sodium ions within the oral salivary fluid. Upon consumption of a salty substance, salt crystals disassemble, leading to the liberation of its constituents—Na+ and Cl- ions. These ions subsequently dissolve into the salivary fluid present in the oral cavity. The external environment of the gustatory cells experiences an elevation in Na+ concentration, thereby establishing a potent concentration gradient. This gradient propels the diffusion of...
Tactile and Chemical Senses01:27

Tactile and Chemical Senses

Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex. This...
Sensory Modalities01:15

Sensory Modalities

Sensation typically is the process by which the sensory receptors and sense organs detect stimuli from the internal and external environment and transmit this information to the central nervous system for processing.
General senses refer to the broad category of sensory information detected by receptors in the body and can be further grouped into somatic and visceral senses. Somatic sensations include touch, pressure, temperature, and pain and are essential for navigating our environment and...

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Related Experiment Video

Updated: Jun 4, 2026

Training Synesthetic Letter-color Associations by Reading in Color
10:27

Training Synesthetic Letter-color Associations by Reading in Color

Published on: February 20, 2014

Bidirectional lexical-gustatory synesthesia.

François Richer1, Guillaume-Alexandre Beaufils, Sophie Poirier

  • 1Université du Québec à Montréal, Canada. Francois.Richer@uqam.ca

Consciousness and Cognition
|February 8, 2011
PubMed
Summary

This study details a unique case of multilingual lexical-gustatory synesthesia where tastes triggered words. It highlights bidirectional associations and plasticity in synesthetic experiences.

Area of Science:

  • Neuroscience
  • Psychology

Background:

  • Lexical-gustatory synesthesia (LGS) involves specific words triggering taste perceptions.
  • These associations are typically stable and unidirectional.

Observation:

  • A case of multilingual LGS presented with bidirectional associations, where tastes evoked auditory word perceptions.
  • Stimuli included words, pseudowords, and voices, indicating broad connections to language and voice areas.
  • Tactile sensations were also evoked alongside gustatory experiences.

Findings:

  • Bidirectional synesthetic links between taste and auditory word perception were observed.
  • Childhood plasticity influenced some evoked taste associations.
  • Inducers were linked to concurrents via phonology, semantics, or childhood episodes, suggesting secondary acquisition pathways.

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A Two-interval Forced-choice Task for Multisensory Comparisons

Published on: November 9, 2018

Related Experiment Videos

Last Updated: Jun 4, 2026

Training Synesthetic Letter-color Associations by Reading in Color
10:27

Training Synesthetic Letter-color Associations by Reading in Color

Published on: February 20, 2014

New Methods to Study Gustatory Coding
10:59

New Methods to Study Gustatory Coding

Published on: June 29, 2017

A Two-interval Forced-choice Task for Multisensory Comparisons
07:13

A Two-interval Forced-choice Task for Multisensory Comparisons

Published on: November 9, 2018

Implications:

  • The findings suggest greater neural connectivity between taste, voice, and language processing areas than previously understood.
  • The case demonstrates potential plasticity in synesthetic associations beyond initial development.
  • Understanding these complex associations offers insights into sensory integration and memory formation.