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Viewpoint-dependent recognition of familiar faces
1Max-Planck Institut für biologische Kybernetik, Tübingen, Germany. niko@psyc.queensu.ca
Perception
|February 9, 2000
Summary
Human visual recognition relies on viewer-centered representations, even for familiar faces. Studies show viewpoint dependence for one's own face, indicating that familiarity doesn't guarantee viewpoint invariance in object recognition.
Area of Science:
- Cognitive Neuroscience
- Visual Perception
- Human Psychology
Background:
- The debate on object representation (object-centered vs. viewer-centered) is ongoing.
- Viewpoint dependence in object recognition suggests viewer-centered representations.
- Previous studies often used unfamiliar objects.
Purpose of the Study:
- To investigate viewpoint dependence in visual recognition of highly familiar faces.
- To determine if extensive familiarity with one's own face leads to viewpoint invariance.
Main Methods:
- Testing recognition of own face and familiar colleagues' faces from different viewpoints.
- Comparing response times for frontal and profile views.
- Analyzing viewpoint dependence in recognition performance.
Main Results:
- Observers were significantly poorer at recognizing their own profile view.
- No significant difference in response time for frontal versus profile views of familiar colleagues' faces.
- Demonstrated viewpoint dependence even for highly familiar self-faces.
Conclusions:
- Extensive experience and familiarity with one's own face do not yield viewpoint invariance.
- Results provide strong evidence for viewer-centered representations in human visual recognition.
- Viewer-centered representations are robust even for highly familiar objects like faces.