a person who studies or is an expert in natural history, especially a zoologist or botanist. an adherent of naturalism in literature or art.
Causes. Occipital neuralgia happens when thereâs pressure or irritation to your occipital nerves, maybe because of an injury, tight muscles that entrap the nerves, or inflammation. Many times, doctors canât find a cause for it. Some medical conditions are linked to it, including: Trauma to the back of the head; Neck tension or tight neck muscles
The Peristriate region of the occipital lobe is involved in visuospatial processing, discrimination of movement and color discrimination (Westmoreland et al., 1994). Damage to one side of the occipital lobe causes homonomous loss of vision with exactly the same field cut in both eyes. Disorders of the occipital lobe can cause visual hallucinations and illusions. Visual hallucinations (visual images with no external stimuli) can be caused by lesions to the occipital region or temporal lobe seizures.