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The occipital face area (OFA) is a region of the human cerebral cortex which is specialised for face perception. The OFA is located on the lateral surface of the occipital lobe adjacent to the inferior occipital gyrus . [ 1 ]
The occipital gyri (OcG) are three gyri in parallel, along the lateral portion of the occipital lobe, also referred to as a composite structure in the brain. [1] [2] The gyri are the superior occipital gyrus, the middle occipital gyrus, and the inferior occipital gyrus, and these are also known as the occipital face area. [1]
The occipital aspects along the inside face of each hemisphere are divided by the calcarine sulcus. Above the medial, Y-shaped sulcus lies the cuneus, and the area below the sulcus is the lingual gyrus. Damage to the primary visual areas of the occipital lobe can cause partial or complete blindness. [2]
the abdominal region encompassing the stomach area; the umbilical region is located around the navel; the coxal region encompassing the lateral (side) of hips; the pubic region encompassing the area above the genitals. The pelvis and legs contain, from superior to inferior, the inguinal or groin region between the thigh and the abdomen,
Prosopagnosia can be caused by lesions in various parts of the inferior occipital areas (occipital face area), fusiform gyrus (fusiform face area), and the anterior temporal cortex. [12] Positron emission tomography ( PET ) and fMRI scans have shown that, in individuals without prosopagnosia, these areas are activated specifically in response ...
The stimuli are then identified as being facial and more refined processing occurs within the fusiform face area (FFA), [8] the occipital face area (OFA), and the face-selective region of the superior temporal sulcus (fSTS). The FFA serves low level tasks, such as distinguishing details between similar well-known objects.
The occipital face area is activated by the visual perception of single features of the face, for example, the nose and mouth, and preferred combination of two-eyes over other combinations. This suggests that the occipital face area recognizes the parts of the face at the early stages of recognition.
Evidence has found that a face-selective region in the brain known as the occipital face area (OFA) is involved in the processing of both upright and inverted faces. [9] [11] Overall, face and object processing mechanisms seem to be separate in the brain.