4.2 Article

The Inversion, Part-Whole, and Composite Effects Reflect Distinct Perceptual Mechanisms With Varied Relationships to Face Recognition

出版社

AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/xhp0000400

关键词

holistic processing; face recognition; composite effect; part-whole effect; inversion effect

资金

  1. Marie Curie International Outgoing Fellowship

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Face recognition is thought to rely on specific mechanisms underlying a perceptual bias toward processing faces as undecomposable wholes. This face-specific holistic processing is commonly quantified using 3 measures: the inversion, part-whole, and composite effects. Consequently, many researchers assume that these 3 effects measure the same cognitive mechanism(s) and these mechanisms contribute to the wide range of individual differences seen in face recognition ability. We test these assumptions in a large sample (N = 282), with individual face recognition abilities measured by the well-validated Cambridge Face Perception Test. Our results provide little support for either assumption. The small to nonexistent correlations among inversion, part-whole, and composite effects (correlations between - .03 and .28) fail to support the first assumption. As for the second assumption, only the inversion effect moderately predicts face recognition (r = .42); face recognition was weakly correlated with the part-whole effect (r = .25) and not correlated with the composite effect (r = .04). We rule out multiple artifactual explanations for our results by using valid tasks that produce standard effects at the group level, demonstrating that our tasks exhibit psychometric properties suitable for individual differences studies, and demonstrating that other predicted correlations (e.g., between face perception measures) are robust. Our results show that inversion, part-whole, and composite effects reflect distinct perceptual mechanisms, and we argue against the use of the single, generic term holistic processing when referring to these effects. Our results also question the contribution of these mechanisms to individual differences in face recognition. Public Significance Statement Face recognition is thought to rely on specific cognitive mechanisms that process faces as undecomposable wholes. This face-specific holistic processing is typically quantified using 3 measures: the inversion, the part-whole, and the composite effect. The implicit assumption is that these effects index the operation of the same unique mechanisms that make significant contributions to face recognition ability. We tested this assumption in a large individual differences study (N = 202). First, we show that the inversion, part-whole, and composite effects reflect distinct perceptual mechanisms. Second, we find that face recognition was moderately predicted (r(2) = .18) only by the inversion effect; the part-whole and the composite effect were weak (r(2) = .06) or not significant (r(2) = .00) predictors, respectively. Our study suggests that holistic processing is not a single, uniform construct and that it does not contribute to individual differences in normal face recognition as much as previously considered.

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