The perception of food size and food shape in anorexia nervosa

Zitron-Emanuel, Noa; Ganel, Tzvi; Albini, Erica; Abbate-Daga, Giovanni; Marzola, Enrica

doi:10.1016/j.appet.2021.105858

Cited by 4 publications

(2 citation statements)

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“…The BTPI will assess (a) the degree of susceptibility to three different size illusions (by computing the PSE) and (b) the resolution to size differences in the context of each illusion (the JND). We focused on three major visual size illusions: the Ponzo illusion ( Ganel, Tanzer, & Goodale, 2008 ; Leibowitz, Brislin, Perlmutrer, & Hennessy, 1969 ; Ozana & Ganel, 2020 ), the Ebbinghaus illusion ( Coren & Miller, 1974 ), and the height–width illusion ( Ben-Shalom & Ganel, 2012 ; Ganel & Goodale, 2003 ; Zitron-Emanuel et al, 2022 ; Zitron-Emanuel & Ganel, 2020 ). Each of the illusions taps a different aspect of size-related visual processing.…”

Section: Introductionmentioning

confidence: 99%

The BTPI: An online battery for measuring susceptibility to visual illusions

Mazuz,

Kessler,

Ganel

2023

Journal of Vision

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Visual illusions provide a powerful tool for probing the mechanisms that underlie perception. While most previous studies of visual illusions focused on average group-level performance, less attention has been devoted to individual differences in susceptibility to illusions. Unlike in other perceptual domains, in which there are established, validated tools to measure individual differences, such tools are not yet available in the domain of visual illusions. Here, we describe the development and validation of the BTPI (Ben-Gurion University Test for Perceptual Illusions), a new online battery designed to measure susceptibility to the influence of three prominent size illusions: the Ebbinghaus, the Ponzo, and the height–width illusions. The BTPI also measures perceptual resolution, reflected by the just noticeable difference (JND), to detect size differences in the context of each illusion. In Experiment 1 ( N = 143), we examined performance in typical self-paced tasks, whereas in Experiment 2 ( N = 69), we employed a fixed presentation duration paradigm. High test–retest reliability scores were found for all illusions, with little evidence for intercorrelations between different illusions. In addition, lower perceptual resolution (larger JND) was associated with a larger susceptibility to the illusory effect. The computerized task battery and analysis codes are freely available online.

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Section: Introductionmentioning

confidence: 99%

The BTPI: An online battery for measuring susceptibility to visual illusions

Mazuz,

Kessler,

Ganel

2023

Journal of Vision

Self Cite

View full text Add to dashboard Cite

show abstract

“…The BTPI will assess (1) the degree of susceptibility to three different size illusions (by computing the PSE) and (2) the resolution to size differences in the context of each illusion (the JND). We focused on three major visual size illusions: The Ponzo illusion (Ganel et al, 2008;Leibowitz et al, 1969;Ozana & Ganel, 2020), the Ebbinghaus illusion (Coren & Miller, 1974), and the height-width illusion (Ben-Shalom & Ganel, 2012;Ganel & Goodale, 2003;Zitron-Emanuel et al, 2022;Zitron-Emanuel & Ganel, 2020). Each of the illusions taps a different aspect of size-related visual processing.…”

mentioning

confidence: 99%

The BTPI: An online battery for measuring susceptibility to visual illusions

Mazuz¹,

Kessler²,

Ganel³

2023

Preprint

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Visual illusions provide a powerful tool for probing the mechanisms that underlie perception. While most previous studies of visual illusions focused on average group-level performance, less attention has been devoted to individual differences in susceptibility to illusions. Unlike in other perceptual domains, in which there are established, validated tools to measure individual differences, such tools are not yet available in the domain of visual illusions. Here, we describe the development and validation of the BTPI (Ben-Gurion University Test for Perceptual illusions), a new online battery designed to measure susceptibility to the influence of three prominent size illusions: The Ebbinghaus, the Ponzo, and the height-width illusions. The BTPI also measures perceptual resolution, reflected by the just noticeable difference (JND), to detect size differences in the context of each illusion. In Experiment 1 (N=143), we examined performance in typical self-paced tasks, whereas in Experiment 2 (N=69), we employed a fixed presentation duration paradigm. High test-retest reliability scores were found for all illusions, with little evidence for inter-correlations between different illusions. In addition, lower perceptual resolution (larger JND) was associated with a larger susceptibility to the illusory effect. The computerized task battery and analysis codes are freely available online.

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“I’m Not Hungry:” Bodily Representations and Bodily Experiences in Anorexia Nervosa

Floris,

Panero

2024

Rev.Phil.Psych.

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The perception of food size and food shape in anorexia nervosa

Cited by 4 publications

References 32 publications

The BTPI: An online battery for measuring susceptibility to visual illusions

The BTPI: An online battery for measuring susceptibility to visual illusions

The BTPI: An online battery for measuring susceptibility to visual illusions

“I’m Not Hungry:” Bodily Representations and Bodily Experiences in Anorexia Nervosa

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