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Published on: December 24, 2015
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Human faces and face-like stimuli are more memorable
Marianna E Kapsetaki1, Semir Zeki1
1Laboratory of Neurobiology, Department of Cell & Developmental Biology, University College London, London, UK.
Psych Journal
|June 6, 2022
Summary
Human faces are more memorable than buildings, with memorability decreasing as images depart from human likeness. This supports distinct brain processing for biological versus artifactual stimuli.
Area of Science:
- Cognitive Neuroscience
- Visual Perception
- Memory Studies
Background:
- Previous research suggests distinct brain processes for biological and artifactual stimuli.
- Human faces are a prime example of biological stimuli, perceived via innate or early-acquired mechanisms.
Purpose of the Study:
- To investigate if human faces exhibit higher memorability compared to other image categories.
- To determine if memorability decreases with increasing deviation from human facial features.
- To provide further evidence for differential processing of biological versus artifactual stimuli in memory.
Main Methods:
- Utilized a large dataset of 58,741 images with associated memorability scores.
- Compared the memorability of real human faces against artifactual images (buildings).
- Assessed memorability across five image categories with varying degrees of resemblance to human faces.
Main Results:
- Real human faces were found to be significantly more memorable than buildings.
- A clear gradient of memorability was observed: images more closely resembling human faces were more memorable.
- These findings extend the distinction between biological and artifactual stimulus processing into the domain of memory.
Conclusions:
- The human brain processes and remembers biological stimuli, like faces, differently from artifactual stimuli.
- Memorability is influenced by the degree of resemblance to a human face, indicating a graded memory effect.
- This study reinforces the hypothesis of specialized neural mechanisms for processing evolutionarily significant stimuli.
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