Perceived location of two-dimensional patterns

Vos, Piet G.; Bocheva, Nadejda; N, Yakimoff; Helsper, Eric L

doi:10.1016/0042-6989(93)90014-n

Cited by 22 publications

(19 citation statements)

References 12 publications

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“…In adults, several studies have shown that the perceptual centre is close to the centre of mass of the shape (e.g. Beghi, Vicario, & Zanforlin, 1983;Davi, 1989;Proffitt, Thomas, & O'Brien, 1983;Vos et al, 1993). Similar results have been observed when participants were asked to estimate the position of the "equilibrium point" (centre of mass) of a shape (Baud-Bovy & Soechting, 2001;Bingham & Muchisky, 1993ab).…”

Section: Introductionmentioning

confidence: 54%

The Visual Localization of the Centre of Triangles in Young Children and Adults

Baud-Bovy¹,

Gentaz²

2004

cpl

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Section: Introductionmentioning

confidence: 54%

The Visual Localization of the Centre of Triangles in Young Children and Adults

Baud-Bovy¹,

Gentaz²

2004

cpl

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“…Secondly, the saccadic undershoot seems to increase with spatially extended stimuli (so-called centre-of-gravity effect ; cf. Findlay, Brogan, & Wenban-Smith, 1993; see also Vos, Bocheva, Yamimoff, & Helsper, 1993). Moreover, the size of the saccadic undershoot is in the same range as the size of the foveal mislocalization observed in a perceptual judgement task (see van der Heijden, van der Geest, et al, 1999).…”

Section: Introductionmentioning

confidence: 88%

Perceptual judgement and saccadic behaviour in a spatial distortion with briefly presented stimuli

Stork¹,

Müsseler²,

Heijden³

2010

Advances in Cognitive Psychology

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When observers are asked to localize the peripheral position of a small probe with respect to the mid-position of a spatially extended comparison stimulus, they tend to judge the probe as being more peripheral than the mid-position of the comparison stimulus. This relative mislocalization seems to emerge from differences in absolute localization, that is the comparison stimulus is localized more towards the fovea than the probe. The present study compared saccadic behaviour and relative localization judgements in three experiments and determined the quantitative relationship between both measures. The results showed corresponding effects in localization errors and saccadic behaviour. Moreover, it was possible to estimate the amount of the relative mislocalization by means of the saccadic amplitude.

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“…The results of several studies suggest that the perceived center of dot patterns is influenced more by the distribution of dots within an area than by contour-based or edge-based information. Vos, Bocheva, Yakimoff, and Helsper (1993) studied accuracy in judging the centers of irregular shapes made from dots, bounded contours, and filled areas. Center estimation could be based on dot position, contour, and area, respectively.…”

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confidence: 99%

Perception of two-body center of mass

Friedenberg

Liby

2002

Perception & Psychophysics

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Participants estimated the perceptual center of mass between two horizontally oriented black dots varying in size and distance. Experiment 1 showed that estimates,measured as distance from the larger dot's center, decreased with an increase in size ratio between the dots and a decrease in the distance between them, as predicted by the physical center-of-mass equation. The results were replicated and extended in further experiments with different ratios and distances. In all experiments, the true center was consistently overestimated, either because the stimuli were perceived in a low dimensionality or because of a hesitancy to place estimates near the larger dot's edge. In Experiment 4, the center was deliberately placed near this edge for one-and two-dimensional solutions. Participants still overestimated, indicating an "edge effect" as responsible.

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Perceived location of two-dimensional patterns

Cited by 22 publications

References 12 publications

The Visual Localization of the Centre of Triangles in Young Children and Adults

The Visual Localization of the Centre of Triangles in Young Children and Adults

Perceptual judgement and saccadic behaviour in a spatial distortion with briefly presented stimuli

Perception of two-body center of mass

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