 The stimuli are then identified as being facial and more refined processing occurs within the fusiform face area (FFA), 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 OFA and fSTS serve higher level processing tasks, such as connecting a person's identity to their face and processing emotions based on the arrangement of facial features, respectively.