Is FEF in prefrontal cortex?

Is FEF in prefrontal cortex?

In humans, the FEF is located in the rostral bank of a portion of the precentral sulcus at the caudal end of the middle frontal gyrus (Figure 1(b)). It occupies the caudal end of the granular prefrontal cortex, with the agranular premotor cortex making up its caudal boundary in the fundus of the arcuate sulcus.

What does frontal eye field do?

The frontal eye field (FEF) is an area of the frontal cortex in animals over which electrical stimulation is able to trigger eye movements.

What happens when the frontal eye field is damaged?

The impairments after FEF damage are usually temporary, but combined damage to the FEF and SC results in a permanent deficit in the ability to generate voluntary gaze movements (Schiller, True, & Conway, 1980). The FEF contains neurons with different combinations of motor and visual activity.

Does the frontal lobe control eye movement?

As briefly introduced above, in the frontal lobe, three main areas are involved in eye movement control (Figure 1). A subregion of FEF also controls pursuit eye movements, along with the cortex, the posterior temporoparietal areas,9, 10 and cerebellum.

What is Brodmann’s area 8?

The frontal eye field which occupies the most caudal region of area 8, is responsible for visual attention and control of eye movements.

What artery supplies the frontal eye?

The frontal cortex receives its blood supply from two branches of the internal carotid artery: the anterior cerebral arteries and the middle cerebral arteries. The superior and medial aspects of the cortex receive its supply from the smaller anterior cerebral artery.

Which area is known as frontal eye field?

The frontal eye fields (FEF) are a region located in the frontal cortex, more specifically in Brodmann area 8 or BA8, of the primate brain….Frontal eye fields.

What is the role of the FEF in eye movement?

The cortical area called frontal eye field (FEF) plays an important role in the control of visual attention and eye movements. Electrical stimulation in the FEF elicits saccadic eye movements.

Are there any single neuron recordings of the FEF?

Single-neuron recordings of the FEF neurons indeed show a significant modulation in firing rates associated with the spatial location of covert attention independent of any eye movements (Kodaka et al., 1997; Thompson et al., 2005; Monosov et al., 2008; Armstrong et al., 2009; but see Goldberg and Bushnell, 1981).

How does the FEF communicate with the extraocular muscles?

The FEF communicates with extraocular muscles indirectly via the paramedian pontine reticular formation. Destruction of the FEF causes deviation of the eyes to the ipsilateral side.

Where is the FEF located in the human body?

In humans, it can be more accurately said to lie in a region around the intersection of the middle frontal gyrus with the precentral gyrus, consisting of a frontal and parietal portion. The FEF is responsible for saccadic eye movements for the purpose of visual field perception and awareness, as well as for voluntary eye movement.