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Past models of visual processing have distinguished certain areas of the brain by the specific stimuli that they are most responsive to; for example, the parahippocampal place area (PPA) has been shown to have heightened activation when presented with buildings and place scenes (Epstein & Kanwisher, 1998), whereas the fusiform face area (FFA ...
Any kind of brain damage, such as stroke, brain tissue death, or tumors, can lead to neglect and cause unilateral damage to one side of the parietal lobe. Overall, a person with parietal brain damage still has intact visual fields. One way to reduce the effects of extinction is to use grouping of items.
The occipital lobe is the visual processing center of the mammalian brain containing most of the anatomical region of the visual cortex. [1] The primary visual cortex is Brodmann area 17 , commonly called V1 (visual one).
Combining the brain bias towards facial processing and surface discovery, a follow-up study by Dr. Vuilleumier exposed subjects to paired visual stimuli in three phases. In the initial phase, stimuli were simply bilateral pairs, and extinction frequency was measured.
The same patterns can be found with comparing actual visual stimuli to imaging in the brain (Rossetti et al., 2010). [17] A neglect patient who was very familiar with the map of France was asked to name French towns on a map of the country, both by a mental image of the map and by a physical image of the map.
These paradigms vary with type of stimuli used and time in between stimuli but the base paradigm mainly involved the participant attending to a specific part of the visual field while looking for a target in his or her entire visual field. Blocks of stimuli are presented one at a time and the participant must indicate (or at the very least look ...
Seizures originate in the occipital lobe and account for 5 to 10 percent of all epileptic seizure types. Generally, this type of epilepsy can have an onset anywhere from 1–17 years old in children, but the patient prognosis is good. Since the event is located in the occipital lobe, symptoms may occur spontaneously and include visual stimuli.
A central nervous system tumor (CNS tumor) is an abnormal growth of cells from the tissues of the brain or spinal cord. [1] CNS tumor is a generic term encompassing over 120 distinct tumor types. [ 2 ]
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