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
If one occipital lobe is damaged, the result can be homonymous hemianopsia vision loss from similarly positioned field cuts in each eye. Occipital lesions can cause visual hallucinations. Lesions in the parietal-temporal-occipital association area are associated with color agnosia, movement agnosia, and agraphia.ccipital lobe (red) of left cerebral hemisphere. The two occipital lobes are the smallest of four paired lobes in the human cerebral cortex. Located in the rearmost portion of the skull, the occipital lobes are part of the forebrain.