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 occipital lobes are the center of our visual perception system. They are not particularly vulnerable to injury because of their location at the back of the brain, although any significant trauma to the brain could produce subtle changes to our visual-perceptual system, such as visual field defects and scotomas.isorders 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.