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What happens if the lingual gyrus is damaged?

What happens if the lingual gyrus is damaged?

Visual memory dysfunction and visuo-limbic disconnection have been shown in cases where the lingual gyrus has been damaged (due to stroke or other traumatic brain injuries). Further, impaired visual memory is related to either damage to the region or disconnections between the gyrus and other brain structures.

Where is lingual gyrus located?

The lingual gyrus lies between the calcarine fissure and the posterior part of the collateral fissure; behind, it reaches the occipital pole; in front, it is continued on to the tentorial surface of the temporal lobe, and joins the hippocampal gyrus.

What are gyri?

A gyrus (plural: gyri) is the name given to the bumps ridges on the cerebral cortex (the outermost layer of the brain). Gyri are found on the surface of the cerebral cortex and are made up of grey matter, consisting of nerve cell bodies and dendrites.

Why is macular sparing?

Macular sparing is visual field loss that preserves vision in the center of the visual field, otherwise known as the macula. It appears in people with damage to one hemisphere of their visual cortex, and occurs simultaneously with bilateral homonymous hemianopia or homonymous quadrantanopia.

What happens when the fusiform gyrus is damaged?

There are two types of prosopagnosia. Acquired prosopagnosia usually results from injury to the fusiform gyrus, and typically occurs in adults, while congenital prosopagnosia the ability to recognize faces nerve develops.

What is the lingual gyrus?

The lingual gyrus is a tongue-shaped structure that lies on the medial aspect of the occipital lobe along the inferomedial (tentorial) surface 1.

What is the function of gyrus?

Each gyrus is surrounded by sulci and together, the gyri and sulci help to increase the surface area of the cerebral cortex and form brain divisions. They form brain divisions by creating boundaries between the lobes, so these are easily identifiable, as well as serving to divide the brain into two hemispheres.

What does gyrus mean in the brain?

ridge
In neuroanatomy, a gyrus (pl. gyri) is a ridge on the cerebral cortex. It is generally surrounded by one or more sulci (depressions or furrows; sg. sulcus). Gyri and sulci create the folded appearance of the brain in humans and other mammals.

The lingual gyrus, also known as the medial occipitotemporal gyrus, is a brain structure that is linked to processing vision, especially related to letters.

What happens when the lingual gyrus is damaged?

Visual memory dysfunction and visuo-limbic disconnection have been shown in cases where the lingual gyrus has been damaged (due to stroke or other traumatic brain injuries). Further, impaired visual memory is related to either damage to the region or disconnections between the gyrus and other brain structures.

What does the left lingual gyrus do in working memory?

Furthermore, the left lingual gyrus activates during memorizing and maintaining images of human faces in working memory. Activation of the lingual gyrus has been shown in selective visual attention studies. Subjects were tasked with memorizing symbols in certain visual fields while ignoring those in others.

What is the function of bilateral lingual gyri?

Bilateral lingual gyri. The lingual gyrus on both sides also seem to play a role in the perception of visual space as lesions on either side result in the clinical phenomenon known as line bisection error (LBE), in which patients wrongly bisect a horizontal line 10,11. As a consequence of the input from the inferior optic radiation,…