Morphing Marilyn into Maggie dissociates physical and identity face representations in the brain

Pia Rotshtein, Richard N.A. Henson, Alessandro Treves, Jon Driver, Raymond J. Dolan

Research output: Contribution to journalArticlepeer-review


How the brain represents different aspects of faces remains controversial. Here we presented subjects with stimuli drawn from morph continua between pairs of famous faces. In the paired presentations, a second face could be identical to the first, could share perceived identity but differ physically (30% along the morph continuum), or could differ physically by the same distance along the continuum (30%) but in the other direction. We show that, behaviorally, subjects are more likely to classify face pairs in the third paired presentation as different and that this effect is more pronounced for subjects who are more familiar with the faces. In functional magnetic resonance imaging (fMRI), inferior occipital gyrus (IOG) shows sensitivity to physical rather than to identity changes, whereas right fusiform gyrus (FFG) shows sensitivity to identity rather than to physical changes. Bilateral anterior temporal regions show sensitivity to identity change that varies with the subjects' pre-experimental familiarity with the faces. These findings provide neurobiological support for a hierarchical model of face perception.

Original languageEnglish
Pages (from-to)107-113
Number of pages7
JournalNature Neuroscience
Issue number1
StatePublished - Jan 2005
Externally publishedYes

Bibliographical note

Funding Information:
We thank J. Ashburner and A. Viaccoz for help with the stimuli. This work was carried out under a Programme Grant to R.J.D. from the Wellcome Trust. J.D., R.N.H and P.R. were also supported by the Wellcome Trust. Additional support came from the Human Frontier Science Program to A.T. and R.J.D.

ASJC Scopus subject areas

  • General Neuroscience


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