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A feature-inversion effect: can an isolated feature show behavior like the face-inversion effect?

Sam S Rakover¹

¹Department of Psychology, Haifa University, Haifa, Israel. rakover@psy.haifa.ac.il

Psychonomic Bulletin & Review

|May 18, 2012

Summary

The face-inversion effect (FIE) is not solely due to spatial arrangements. Isolated eyes show this effect, supporting an extended hypothesis that inversion impacts internal eye processing.

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Area of Science:

Cognitive Psychology
Visual Perception

Background:

The face-inversion effect (FIE) is a well-documented phenomenon in visual perception.
The configural-processing hypothesis explains FIE by proposing that face inversion disrupts the processing of spatial relationships between facial features.

Purpose of the Study:

To test the configural-processing hypothesis regarding the face-inversion effect.
To investigate whether isolated facial features, specifically eyes, exhibit a feature-inversion effect.
To examine the role of configural information within eyes and the impact of brow removal on face processing.

Main Methods:

Experimental manipulation of facial stimuli (whole faces, isolated features).
Presentation of upright and inverted facial stimuli.
Behavioral measures assessing processing differences.

Main Results:

Isolated eyes demonstrated a feature-inversion effect, contrary to the original configural-processing hypothesis.
This finding supports an extended configural-processing hypothesis, suggesting internal configural processing within eyes is affected by inversion.
Brow removal affected configural processing differently in upright versus inverted faces.

Conclusions:

The face-inversion effect extends to isolated facial features like eyes.
An extended configural-processing hypothesis, incorporating internal feature processing, better explains the FIE.
Configural processing within eyes and the influence of surrounding features are crucial for understanding face perception.