Parvocellular cell - Revision history

Prab: CSV import

2025-03-03T05:04:20Z

CSV import

← Older revision		Revision as of 05:04, 3 March 2025
Line 26:		Line 26:
	[[Category:Neuroscience]]		[[Category:Neuroscience]]
	[[Category:Visual system]]		[[Category:Visual system]]
			<gallery>
			File:lateral geniculate nucleus.png\|Lateral Geniculate Nucleus
			</gallery>

Prab at 19:16, 16 February 2025

2025-02-16T19:16:29Z

← Older revision		Revision as of 19:16, 16 February 2025
Line 1:		Line 1:
	~~== Parvocellular Cells ==~~

	~~[[File:Parvocellular_cell lateral_geniculate_nucleus.png\|thumb\|right\|Diagram of parvocellular cells in the lateral geniculate nucleus]]~~

	Parvocellular cells, also known as P-cells, are a type of neuron located in the [[lateral geniculate nucleus]] (LGN) of the [[thalamus]]. These cells are part of the visual processing pathway and play a crucial role in the perception of color and fine detail.		Parvocellular cells, also known as P-cells, are a type of neuron located in the [[lateral geniculate nucleus]] (LGN) of the [[thalamus]]. These cells are part of the visual processing pathway and play a crucial role in the perception of color and fine detail.

Prab: CSV import

2025-02-16T16:29:38Z

CSV import

← Older revision		Revision as of 16:29, 16 February 2025
Line 1:		Line 1:
	~~'''~~Parvocellular cells''' are a type of [[neuron]] found in the [[visual system]], specifically in the [[lateral geniculate nucleus]] (LGN) of the [[thalamus]]. The term "parvocellular" is derived from the Latin words ''parvus'' meaning "small" and ''cellula'' meaning "cell". This name is given due to the small size of these cells compared to other neurons in the same area.		== Parvocellular Cells ==

	~~== Function ==~~		[[File:Parvocellular_cell lateral_geniculate_nucleus.png\|thumb\|right\|Diagram of parvocellular cells in the lateral geniculate nucleus]]
	~~Parvocellular cells are responsible for processing~~ [[~~color~~]] and fine details in the visual scene. They have a slow conduction velocity, which means they are not as effective at processing fast-moving images. However, their high spatial resolution allows them to process fine details and color information.

	~~== Structure ==~~		Parvocellular cells, also known as P-cells, are a type of neuron located in the [[lateral geniculate nucleus]] (LGN) of the [[thalamus]]. These cells are part of the visual processing pathway and play a crucial role in the perception of color and fine detail.
	Parvocellular cells are ~~smaller than other neurons~~ in the ~~LGN. They have a small receptive field, which allows them to process fine details. The cells receive input from~~ [[~~midget cells~~]] in the [[~~retina~~]]~~, which~~ are ~~also small~~ and ~~have~~ a ~~small receptive field~~.

	== ~~Parvocellular pathway~~ ==		=== Structure ===
	~~The parvocellular pathway~~, ~~also known~~ as the ~~P pathway~~, is the ~~pathway in~~ the visual ~~system that involves the parvocellular cells. This~~ pathway ~~is responsible for processing color and fine details~~. ~~It begins in~~ the retina~~, where light information is first received,~~ and ~~ends in~~ the [[primary visual cortex]]~~, where~~ the ~~information is processed and interpreted~~.		Parvocellular cells are characterized by their small cell bodies, which is reflected in their name, as "parvo" means "small" in Latin. They are found in the four dorsal layers of the lateral geniculate nucleus, which is a relay center in the thalamus for the visual pathway. The LGN receives input from the [[retina]] and sends output to the [[primary visual cortex]] in the [[occipital lobe]].

	== ~~Clinical significance~~ ==		=== Function ===
	~~Damage to the parvocellular~~ cells ~~or the parvocellular pathway can lead~~ to ~~deficits in~~ color ~~perception~~ and fine ~~detail perception~~. ~~This can occur as~~ a ~~result of~~ [[~~stroke~~]], ~~[[traumatic brain injury]], or certain [[neurodegenerative diseases]]~~.		Parvocellular cells are primarily responsible for processing high-resolution visual information. They are sensitive to color and are involved in the detection of fine details and textures. These cells have a slower conduction velocity compared to [[magnocellular cells]], which are another type of neuron in the LGN that process motion and broad outlines.

	~~== See~~ also ==		The parvocellular pathway is crucial for tasks that require detailed visual analysis, such as reading and recognizing faces. This pathway is also involved in the perception of color, as it receives input from the [[cone cells]] in the retina, which are responsible for color vision.
	* [[~~Magnocellular cell]]~~
	* [[Koniocellular cell]]

	== ~~References~~ ==		=== Visual Pathway ===
	~~<references />~~		The visual information processed by parvocellular cells is transmitted from the retina to the LGN and then to the primary visual cortex. In the retina, the [[ganglion cells]] that project to the parvocellular layers of the LGN are known as P-ganglion cells. These cells receive input from the cone cells and are responsible for transmitting color and fine detail information.

	[[Category:~~Neurons~~]]		Once the information reaches the primary visual cortex, it is further processed and integrated with other visual information to form a complete visual perception. The parvocellular pathway is part of the "what" pathway, which is involved in object recognition and identification.

			== Related Pages ==
			* [[Lateral geniculate nucleus]]
			* [[Thalamus]]
			* [[Primary visual cortex]]
			* [[Magnocellular cells]]
			* [[Retina]]
			* [[Cone cells]]

			{{Neuroscience}}

			[[Category:Neuroscience]]
	[[Category:Visual system]]		[[Category:Visual system]]
	~~{{stub}}~~

Prab: CSV import

2024-02-20T00:07:48Z

CSV import

New page

'''Parvocellular cells''' are a type of [[neuron]] found in the [[visual system]], specifically in the [[lateral geniculate nucleus]] (LGN) of the [[thalamus]]. The term "parvocellular" is derived from the Latin words ''parvus'' meaning "small" and ''cellula'' meaning "cell". This name is given due to the small size of these cells compared to other neurons in the same area.

== Function ==
Parvocellular cells are responsible for processing [[color]] and fine details in the visual scene. They have a slow conduction velocity, which means they are not as effective at processing fast-moving images. However, their high spatial resolution allows them to process fine details and color information.

== Structure ==
Parvocellular cells are smaller than other neurons in the LGN. They have a small receptive field, which allows them to process fine details. The cells receive input from [[midget cells]] in the [[retina]], which are also small and have a small receptive field.

== Parvocellular pathway ==
The parvocellular pathway, also known as the P pathway, is the pathway in the visual system that involves the parvocellular cells. This pathway is responsible for processing color and fine details. It begins in the retina, where light information is first received, and ends in the [[primary visual cortex]], where the information is processed and interpreted.

== Clinical significance ==
Damage to the parvocellular cells or the parvocellular pathway can lead to deficits in color perception and fine detail perception. This can occur as a result of [[stroke]], [[traumatic brain injury]], or certain [[neurodegenerative diseases]].

== See also ==
* [[Magnocellular cell]]
* [[Koniocellular cell]]

== References ==
<references />

[[Category:Neurons]]
[[Category:Visual system]]
{{stub}}