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Related Concept Videos

Gustation01:43

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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.
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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,...
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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...
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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...
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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.
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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:
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Related Experiment Video

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Assessment of Spatial Lingual Tactile Sensitivity using a Gratings Orientation Test
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Crossmodal correspondences and interactions between texture and taste perception.

Eleftheria Pistolas1, Johan Wagemans1

  • 1Laboratory of Experimental Psychology, Department of Brain and Cognition, University of Leuven, Belgium.

I-Perception
|April 6, 2023
PubMed
Summary

This study reveals consistent links between specific tastes and food textures. Sweetness pairs with soft textures, while crispiness is associated with saltiness, impacting food perception.

Keywords:
crossmodal correspondencesmouthfeelmultisensory perceptiontastetexture

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Area of Science:

  • Crossmodal perception
  • Sensory science
  • Food science

Background:

  • Crossmodal correspondences between senses, particularly taste and texture, are increasingly recognized.
  • Previous research primarily focused on broad texture categories (smooth vs. rough), leaving specific texture-taste links under-explored.
  • Understanding how textures like 'crispy' or 'crunchy' influence taste perception is crucial for food description and experience.

Purpose of the Study:

  • To investigate intuitive associations between basic tastes and specific food textures.
  • To determine if conceptual associations between taste and texture are reflected at the perceptual level.
  • To explore the complexity of taste-texture relationships beyond simple smoothness/roughness distinctions.

Main Methods:

  • Two-part study: (1) Online questionnaire to assess conceptual taste-texture associations.
  • (2) Controlled taste experiment with factorial combinations of four tastes and four textures.
  • Analysis of intuitive and perceptual links between sensory modalities.

Main Results:

  • Online questionnaire revealed consistent conceptual associations: soft with sweet, and crispy with salty.
  • Taste experiment largely supported these conceptual findings at the perceptual level.
  • Further complexity observed in associations between sour/crunchy and bitter/sandy textures.

Conclusions:

  • Consistent crossmodal correspondences exist between specific tastes and textures, extending beyond basic smoothness/roughness.
  • These conceptual associations are largely supported by perceptual evidence, enhancing our understanding of food experience.
  • The study highlights the intricate relationship between texture and taste, particularly for sour and bitter tastes.