Related Experiment Video
Updated: Jul 30, 2026

09:13
Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder
Published on: April 22, 2015
Developmental aspects of sensory substitution
The International Journal of Neuroscience
|May 1, 1983
Summary
Congenitally blind infants and young children used the Sonicguide device, an artificial intersensory substitute. Younger children demonstrated quicker spatial information processing, highlighting developmental differences in sensory substitution.
Area of Science:
- Developmental Psychology
- Sensory Neuroscience
- Assistive Technology
Background:
- Congenital blindness presents challenges in spatial awareness and environmental interaction.
- Intersensory substitutability, the brain's ability to adapt sensory input, is crucial for development.
Purpose of the Study:
- To investigate the efficacy of the SonicguideTM as an artificial intersensory substitute for congenitally blind children.
- To explore developmental differences in the utilization of spatial information from sensory substitution devices.
Main Methods:
- The study involved congenitally blind infants and young children using the SonicguideTM device.
- A search task was designed to assess distally appropriate responses to spatial information.
Main Results:
- Younger subjects exhibited a more rapid sensitivity to spatial information conveyed by the SonicguideTM.
- Developmental variations in processing substituted sensory input were observed.
Conclusions:
- The SonicguideTM shows potential as a tool for enhancing spatial awareness in blind children.
- Developmental stage significantly influences the effectiveness and learning curve of intersensory substitution devices.
Related Concept Videos
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.
Somatosensation
The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
Unrenewable Cells
In humans, the photoreceptor cells of the eye and sensory hair cells of the ear lack stem cells. These cells are thus unrenewable and cannot be replaced when they are damaged or destroyed.
Photoreceptors
The retina is composed of several layers and contains specialized cells called photoreceptors. The photoreceptors (rods and cones) change their membrane potential when stimulated by light energy. There are two types of photoreceptors—rods and cones—which differ in the shape of their outer...
Photoreceptors
The retina is composed of several layers and contains specialized cells called photoreceptors. The photoreceptors (rods and cones) change their membrane potential when stimulated by light energy. There are two types of photoreceptors—rods and cones—which differ in the shape of their outer...
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...
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...
Introduction to Special Senses
Sensory receptors play an integral part in comprehending our external and internal environments. They receive diverse stimuli, converting them into the nervous system's electrochemical signals. This conversion occurs as the stimulus alters the sensory neuron's cell membrane potential, instigating the generation of an action potential. This action potential is subsequently transmitted to the central nervous system (CNS), which integrates with other sensory data or higher cognitive functions.
Neuroplasticity
Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.

