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Related Experiment Video

Updated: May 11, 2026

Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues

Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues

Published on: June 3, 2013

First report of generalized face processing difficulties in möbius sequence.

Sarah Bate¹, Sarah Jayne Cook, Joseph Mole

¹Psychology Research Centre, Bournemouth University, Poole, United Kingdom. sbate@bournemouth.ac.uk

|May 3, 2013

Summary

This summary is machine-generated.

Facial expression recognition may not solely rely on motor programs. Individuals with Möbius sequence showed deficits in recognizing emotions but could still imagine them, challenging current theories.

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Last Updated: May 11, 2026

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Area of Science:

Cognitive Neuroscience
Psychology

Background:

Facial expression recognition theories propose mirroring emotions via motor programs.
Möbius sequence, causing facial paralysis, has yielded mixed results in testing these theories.

Observation:

This study examined expression recognition and imagery in six Möbius sequence participants.
Tests also included facial identity, object recognition, and visual processing.

Findings:

Five participants had impaired facial expression recognition.
Only one participant showed deficits in imagining facial expressions.
Five participants exhibited difficulties with facial identity, object recognition, or basic visual processing.

Implications:

Findings challenge the reverse simulation model of emotion recognition.
Suggests facial identity recognition deficits may be underestimated in Möbius sequence.