Sensory Function
Sensory Function - Related Videos
01:16
Sensory Functions of the Skin
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2025
The skin is the largest organ of the human body and plays a crucial role in our sensory perception. It contains a vast network of sensory receptors that contribute to the skin's protective function by perceiving physical, biological, and environmental cues and generating relevant responses. There are two main categories of receptors on the skin: capsulated and non-capsulated. The non-capsulated ones are mainly the pain receptors. The capsulated ones can be further categorized based on the...
09:13
Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder
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Cited by 14 •
2015
We describe how to implement a battery of behavioral tasks to examine the processing and integration of sensory stimuli in children with ASD. The goal is to characterize individual differences in temporal processing of simple auditory and visual stimuli and relate these to higher order perceptual skills like speech perception.
13:11
Sensory Exam
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2023
Source:Tracey A. Milligan, MD; Tamara B. Kaplan, MD; Neurology, Brigham and Women's/Massachusetts General Hospital, Boston, Massachusetts, USA A complete sensory examination consists of testing primary sensory modalities as well as cortical sensory function. Primary sensory modalities include pain, temperature, light touch, vibration, and joint position sense. Sensation of the face is discussed in the videos Cranial Nerves Exam I and II, as are the special senses of smell, vision, taste, and...
01:31
What is a Sensory System?
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2019
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. Sensory systems include the visual, auditory, gustatory (taste), olfactory (smell), somatosensory (touch, pain, temperature, and proprioception), and vestibular...
11:31
Functional Near Infrared Spectroscopy of the Sensory and Motor Brain Regions with Simultaneous Kinematic and EMG Monitoring During Motor Tasks
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Cited by 16 •
2014
Monitoring brain activity during upright motor tasks is of great value when investigating the neural source of movement disorders. Here, we demonstrate a protocol that combines functional near infrared spectroscopy with continuous monitoring of muscle and kinematic activity during 4 types of motor tasks.
FAQs
Specialized receptors allow an organism to respond to different classes of change rather than treating every stimulus identically. Receptors may detect light, sound, pressure, temperature, or chemical signals, and each category supplies information about a particular condition. This specialization helps sensory pathways convey relevant environmental or internal changes and supports appropriately coordinated responses.
Sensory transduction creates the signal format required for later nervous-system processing. A detected stimulus is transformed into an electrical or chemical signal, allowing information from receptors to enter sensory pathways. Those signals can then contribute to perception, homeostatic regulation, communication, or behavior, depending on the biological context in which the information is processed.
Sensory function links information about an organism’s internal state with information from its surroundings. Signals related to internal conditions can support homeostasis, meaning maintenance of a stable biological state, while signals from the external environment can guide behavior and communication. Studying both domains shows how sensory pathways coordinate responses across changing conditions.
Investigating sensory function helps biologists examine nervous-system organization and neural development. It also provides a framework for studying sensory disorders, because researchers can relate changes in sensory pathways to altered biological responses. This connects specialized receptors and transduction with broader questions about how the nervous system coordinates information and action.
Studies of sensory disorders use sensory function as a framework for connecting receptor activity, signal conversion, and nervous-system processing with impaired responses. This perspective helps place a disorder within the broader sensory pathway rather than viewing it as an isolated problem. It also links biological research with efforts to understand how perception can be disrupted.
Research on sensory function can guide technologies designed to restore or augment perception. Its biological foundation identifies the stages at which sensory information is detected, converted into signals, and processed by the nervous system. Understanding those stages helps connect technological goals with the organization of natural sensory pathways, although the specific technology depends on the perception being addressed.