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Related Experiment Video

Updated: May 30, 2026

Measuring Sensitivity to Viewpoint Change with and without Stereoscopic Cues

Measuring Sensitivity to Viewpoint Change with and without Stereoscopic Cues

Published on: December 4, 2013

Mirror-image sensitivity and invariance in object and scene processing pathways.

Daniel D Dilks¹, Joshua B Julian, Jonas Kubilius

¹McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. dilks@mit.edu

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience

|August 5, 2011

Summary

Brain regions processing objects show less sensitivity to mirror image confusion than scene-processing regions. This suggests distinct neural pathways for object recognition versus spatial navigation.

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Measuring Sensitivity to Viewpoint Change with and without Stereoscopic Cues

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Area of Science:

Neuroscience
Cognitive Psychology
Visual Perception

Background:

Objects are often vertically symmetric, leading to mirror-image confusion in perception.
Scene navigability is sensitive to mirror reversals, unlike object recognition.

Purpose of the Study:

To investigate how the human brain processes mirror reversals in objects versus scenes.
To test predictions about object-selective and scene-selective cortical regions.

Main Methods:

Event-related functional magnetic resonance imaging (fMRI) adaptation.
Experiment conducted on human adults.

Main Results:

Posterior fusiform sulcus (object-selective) showed tolerance to mirror reversals.
Transverse occipital sulcus and retrosplenial complex (scene-selective) showed sensitivity to mirror reversals.
Lateral occipital sulcus (object-selective) showed sensitivity, suggesting early visual processing.
Parahippocampal place area (PPA) (scene-selective) showed tolerance, challenging navigation hypotheses.

Conclusions:

Object-selective cortex generally tolerates mirror reversals, consistent with object recognition.
Scene-selective cortex is typically sensitive to mirror reversals, crucial for navigation.
The PPA's tolerance suggests distinct pathways for scene recognition and action guidance, separate from navigation.