Covert face recognition in prosopagnosia: a review

Area of Science:

• Cognitive Neuroscience
• Neuropsychology

Background:

• Prosopagnosia is characterized by difficulties in recognizing familiar faces.
• Traditional assessment relies on explicit, overt performance measures.

Purpose of the Study:

• To review empirical data on face processing in prosopagnosia.
• To explore the concept of covert facial knowledge in this condition.
• To suggest adjustments to cognitive processing models of face recognition.

Main Methods:

• Review of existing empirical data and case observations.
• Analysis of evidence for covert knowledge in prosopagnosia.

Main Results:

• Overt performance is insufficient to assess all cognitive face processing abilities.
• Covert facial knowledge exists in some, but not all, individuals with prosopagnosia.
• Face processing in prosopagnosia is more complex than previously assumed.

Conclusions:

• Prosopagnosia involves a spectrum of preserved and impaired face processing abilities.
• Cognitive models of face recognition require refinement to account for covert knowledge.
• Further research is needed to understand the mechanisms underlying covert facial processing.