Face recognition with 'Contrast Chimeras'

Sinha, Pawan; Gilad, Sharon

doi:10.1167/4.8.216

Cited by 2 publications

(1 citation statement)

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“…Our results are consistent with those from other studies finding a role for pigmentation in face recognition (Bruce and Langton 1994;O'Toole et al 1999), as well as facial sex classification (Hill et al 1995;Tarr et al 2001) and attractiveness (Jones et al 2004;Russell 2003). Additional work from our labs suggests that the patterns of pigmentation around the eye regions play a particularly important role in judgments of identity (Sinha and Gilad 2004).…”

Section: Discussionsupporting

confidence: 93%

Is Pigmentation Important for Face Recognition? Evidence from Contrast Negation

et al. 2006

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It is extraordinarily difficult to recognize a face in an image with negated contrast, as in a photographic negative. The variation among faces can be partitioned into two general sources: (a) shape and (b) surface reflectance, here termed 'pigmentation'. To determine whether negation differentially affects the processing of shape or pigmentation, we made two sets of faces where the individual faces differed only in shape in one set and only in pigmentation in the other. Surprisingly, matching performance was significantly impaired by contrast negation only when the faces varied in pigmentation. This provides evidence that the perception of pigmentation, not shape, is selectively disrupted by negation and, by extension, that pigmentation contributes to the neural representation of face identity.

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