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Selected Works

Harold Hill

Hollow

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Articles 1 - 3 of 3

Full-Text Articles in Arts and Humanities

The Hollow-Face Illusion In Infancy: Do Infants See A Screen Based Rotating Hollow Mask As Hollow?, Aki Tsuruhara, Emi Nakato, Yumiko Otsuka, So Kanazawa, Masami K. Yamaguchi, Harold Hill Jul 2013

The Hollow-Face Illusion In Infancy: Do Infants See A Screen Based Rotating Hollow Mask As Hollow?, Aki Tsuruhara, Emi Nakato, Yumiko Otsuka, So Kanazawa, Masami K. Yamaguchi, Harold Hill

Harold Hill

We investigated whether infants experience the hollow-face illusion using a screen-based presentation of a rotating hollow mask. In experiment 1 we examined preferential looking between rotating convex and concave faces. Adults looked more at the concave—illusory convex—face which appears to counter rotate. Infants of 7- to 8-month-old infants preferred the convex face, and 5- to 6-month-olds showed no preference. While older infants discriminate, their preference differed from that of adults possibly because they don’t experience the illusion or counter rotation. In experiment 2 we tested preference in 7- to 8-month-olds for angled convex and concave static faces both before and …


The Hollow Face Illusion In Infancy, E Nakato, Harold C. Hill, Y Otsuka, S Kanazawa, M Yamaguchi Jan 2012

The Hollow Face Illusion In Infancy, E Nakato, Harold C. Hill, Y Otsuka, S Kanazawa, M Yamaguchi

Harold Hill

Abstract presented at The 30th European Conference on Visual Perception, 27-31 August 2007, Arezzo, Italy


The Hollow-Face Illusion: Object Specific Knowledge, General Assumptions Or Properties Of The Stimulus, Harold C. Hill, Alan Johnston Jan 2012

The Hollow-Face Illusion: Object Specific Knowledge, General Assumptions Or Properties Of The Stimulus, Harold C. Hill, Alan Johnston

Harold Hill

The hollow-face illusion, in which a mask appears as a convex face, is a powerful example of binocular depth inversion occurring with a real object under a wide range of viewing conditions. Explanations of the illusion are reviewed and six experiments reported. In experiment 1 the detrimental effect of figural inversion, evidence for the importance of familiarity, was found for other oriented objects. The inversion effect held for masks lit from the side (experiment 2). The illusion was stronger for a mask rotated by 90° lit from its forehead than from its chin, suggesting that familiar patterns of shading enhance …