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Related Concept Videos

Sensation01:21

Sensation

Sensory receptors are specialized neurons that respond to specific types of external stimuli, initiating the process known as sensation. This occurs when sensory input, such as light entering the eye, is detected by these receptors, causing chemical changes in the cells of the retina. These cells then convert the sensory stimulus into action potentials that are transmitted to the central nervous system, a process termed transduction.
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Related Experiment Video

Updated: May 11, 2026

Psychophysical Tracking Method to Assess Taste Detection Thresholds in Children, Adolescents, and Adults: The Taste Detection Threshold (TDT) Test
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Age differences in suprathreshold sensory function.

Marc W Heft1, Michael E Robinson

  • 1Department of Oral & Maxillofacial Surgery, University of Florida, Gainesville, FL, USA, mwheft@ufl.edu.

Age (Dordrecht, Netherlands)
|April 30, 2013
PubMed
Summary
This summary is machine-generated.

Aging may modestly impact somatosensory and taste perception, alongside vision and audition. This study investigated age-related changes in thermal, tactile, and taste senses in healthy adults.

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Area of Science:

  • Gerontology
  • Neuroscience
  • Sensory Science

Background:

  • Vision and audition decline with aging is well-established.
  • Sensory perception changes in somatosensory and taste domains are less understood.
  • Understanding age-related sensory changes is crucial for maintaining quality of life.

Purpose of the Study:

  • To investigate age-related differences in multimodal sensory perception.
  • To assess changes in thermal, tactile, and taste sensation magnitudes in healthy adults.
  • To examine the influence of sex and rating task control on sensory perception across age groups.

Main Methods:

  • Cross-modality matching (CMM) procedure used to assess sensory perception.
  • Participants (20-89 years) judged thermal, tactile, and taste stimuli.
  • Word-rating task served as a control for rating biases.

Main Results:

  • Modest age differences observed in somatosensory and taste perception.
  • Age-related differences in warm temperature, tactile, and salty taste sensations persisted.
  • Rating task differences partially mediated the observed age-related sensory declines.

Conclusions:

  • Somatosensory and taste senses show modest declines with aging.
  • Specific sensory modalities like warm temperature, touch, and salty taste are affected.
  • Age-related sensory changes are present but influenced by cognitive and rating factors.