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Related Concept Videos

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...
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...
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...
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...
What is a Sensory System?01:31

What is a Sensory System?

Sensory systems detect stimuli—such as light and sound waves—and transduce them into neural signals that can be interpreted by the nervous system. In addition to external stimuli detected by the senses, some sensory systems detect internal stimuli—such as the proprioceptors in muscles and tendons that send feedback about limb position.
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: Jun 19, 2026

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder
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Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder

Published on: April 22, 2015

Chapter 32: sensory and perceptual disorders.

Nicholas J Wade1

  • 1Department of Visual Psychology, School of Psychology, University of Dundee, Dundee, UK. n.j.wade@dundee.ac.uk

Handbook of Clinical Neurology
|November 7, 2009
PubMed
Summary

Understanding sensory perception disorders requires appreciating normal senses first. This study charts the progression from describing perceptual phenomena to dissecting them for deeper brain and sensory insights.

Area of Science:

  • Neuroscience
  • Psychology
  • Sensory Science

Background:

  • Historically, perceptual phenomena were described before theoretical frameworks or experiments were developed.
  • Interest often focused on illusions and oddities, neglecting common perceptual experiences.
  • Classifying senses was a prerequisite for studying perceptual disorders.

Observation:

  • Perceptual phenomena evolve through stages: description, theoretical integration, and utilization for insight.
  • The origins of described phenomena are not always clear, with some being ancient and others novel.
  • Order within sensory systems, particularly vision, revealed new phenomena and allowed scrutiny of known ones.

Findings:

  • A historical progression exists from describing perceptual phenomena to dissecting their underlying mechanisms.

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  • Establishing order in sensory systems, especially vision, was crucial for advancing the study of perception.
  • Both ancient and novel perceptual phenomena contribute to understanding sensory and brain function.

    • Implications:

    • Understanding normal sensory operations is fundamental to studying perceptual disorders.
    • The historical approach to perceptual phenomena provides a framework for current research.
    • Further investigation into sensory and brain function can be advanced by analyzing perceptual phenomena.