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Prosopagnosia, [2] also known as face blindness, [3] is a cognitive disorder of face perception in which the ability to recognize familiar faces, including one's own face (self-recognition), is impaired, while other aspects of visual processing (e.g., object discrimination) and intellectual functioning (e.g., decision-making) remain intact.
Prosopamnesia presents itself in patients as an inability to recognize people they have previously encountered based on their faces. In this way, it is very easily mistaken as prosopagnosia, which is an inability to perceive or recognize faces. Prosopagnosia is a deficit that occurs earlier in the neural circuit while the facial stimuli is ...
The study is remarkable because Gauthier [1] demonstrated that, after training participants on the many aspects of greebles, the fusiform face area in the participants' brains responded just as well to greebles as it did to human faces. This suggests that people can improve their ability to recognize faces and objects, and that the fusiform ...
Bruce & Young Model of Face Recognition, 1986. One of the most widely accepted theories of face perception argues that understanding faces involves several stages: [7] from basic perceptual manipulations on the sensory information to derive details about the person (such as age, gender or attractiveness), to being able to recall meaningful details such as their name and any relevant past ...
Prosopagnosia is the inability to recognize faces but is believed to stem from damage to the ventral route of the visual system. Whereas covert recognition is shown in people that lost their ability to recognize faces, implying an intact ventral limbic structure projecting to the amygdala. [3]
Since the patient was capable of feeling emotions and recognizing faces but could not feel emotions when recognizing familiar faces, Ramachandran hypothesizes the origin of Capgras syndrome is a disconnection between the temporal cortex, where faces are usually recognized (see temporal lobe), and the limbic system, involved in emotions.
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Prosopometamorphopsia (PMO [1]), also known as demon face syndrome, [2] is a visual disorder characterized by altered perceptions of faces. In the perception of a person with the disorder, facial features are distorted in a variety of ways including drooping, swelling, discoloration, and shifts of position.