Body Structures

SOURCES OF INFORMATION

Resource	Type	Description

Resource	Type	Description
Neuroscience Information Framework (NIF)	Ontology
APA Dictionary of Psychology	Dictionary
Glossary of technical terms in cognitive neuroscience	Glossary
RDoC Matrix

MAJOR BODY STRUCTURES

Major Concepts	Type of Structure	Sensory Perceptual System(s)	Commonly Used Terms	SNOMED CRG Working Definition

Major Concepts	Type of Structure	Sensory Perceptual System(s)
Parvocellular circuit	Circuit	Visual
Magnocellular circuit	Circuit	Visual
Koniocellular circuit	Circuit	Visual
Visual System	Functional system	Visual
Visual sensory system	Functional system	Visual
Visual perception system	Functional system	Visual

DEFINITIONS

CRG Questions/Requests:

Editorial guidance around the use of terms 'system', 'circuit', 'pathway', etc. in body structure FSNs

Editorial guidance around the use of terms 'nerve fiber', 'nerve tract', 'nerve pathway', etc. in body structure FSNs

Major Concepts	Source	Definition

Major Concepts	Source	Definition
Visual system	APA Dictionary of Psychology Accessed Feb 1, 2021	visual system the components of the nervous system and the nonneural apparatus of the eye that contribute to the perception of visual stimulation. The anterior structures of the eye, such as the cornea and lens, focus light on the retina, which transduces photons into neural signals. These are transmitted via the optic nerve and optic tract to nuclei in the thalamus and brainstem. These in turn transmit the signals either to the visual areas of the cerebral cortex for hierarchical processing and conscious analysis or directly to motor centers in the brainstem and spinal cord to produce eye movements.
Central visual system (visual perception system)
Visual sensory system
Magnocellular system	APA Dictionary of Psychology Accessed Feb 1, 2021	magnocellular system the part of the visual system that projects to or originates from large neurons in the two most ventral layers (the magnocellular layers) of the lateral geniculate nucleus. It allows the rapid perception of movement, form, and changes in brightness but is relatively insensitive to stimulus location and color. See also M-cell. Compare parvocellular system.
Parvocellular system	APA Dictionary of Psychology Accessed Feb 1, 2021	parvocellular system the part of the visual system that projects to or originates from small neurons in the four dorsal layers (the parvocellular layers) of the lateral geniculate nucleus. It allows the perception of fine details, colors, and large changes in brightness. The parvocellular system is expanded in primates compared to that in other animals; it conducts information relatively slowly because of its small cells and slender axons. See also P-cell. Compare magnocellular system.
Koniocellular circuit

Body Structures

SOURCES OF INFORMATION

MAJOR BODY STRUCTURES

DEFINITIONS

visual system

magnocellular system

parvocellular system