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A feast for the senses: development and function of sensory systems
Andrea Streit1, David W Raible
1Department of Craniofacial Development, King's College, London, UK. andrea.streit@kcl.ac.uk
EMBO Reports
|August 20, 2011
Summary
Scientists explored sensory nervous system development, focusing on how signaling and gene networks shape its complexity and evolution. Discussions covered cell identity, connectivity, and functional diversity in sensory systems.
Area of Science:
- Neuroscience
- Developmental Biology
- Evolutionary Biology
Background:
- The EMBO Workshop 'Frontiers in Sensory Development' convened experts in May 2011 in Barcelona.
- The meeting addressed the intricate formation and function of the sensory nervous system.
Framework:
- Discussions centered on signaling and transcriptional networks governing cell identity, architecture, and behavior.
- Investigated mechanisms of neural connectivity establishment in developing sensory systems.
- Explored the evolutionary pathways generating functional diversity within sensory systems.
Implementation:
- Diverse scientific perspectives were integrated to address complex developmental questions.
- Facilitated interdisciplinary dialogue on sensory system formation and function.
Implications:
- Advanced understanding of the molecular and genetic underpinnings of sensory system development.
- Highlighted the evolutionary strategies shaping sensory system diversity.
- Provided a platform for future research collaborations in sensory neuroscience.
Related Concept Videos
01:31What 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.
01:15Sensory 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...
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...
01:11Sensory 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...
01:26Introduction 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.
01:16Sensory Functions of the Skin
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...
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...
01:27Synesthesia
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...