Amodal Completion is Not Completed Only behind the Occluder

Takashima, Midori; Fujii, Teruo; Shiina, Ken

doi:10.1068/p6478

Cited by 5 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The amodal completion pattern could be completed based on two different kinds of rules: straight continuity and symmetry. In the vertical condition adults completed the pattern as a hexagon based on symmetry and in the diagonal condition they completed it as a pentagon based on straight continuity (Markovich, 2002; Takashima et al., 2009). Compared with adults, our experiment showed that infants followed the rule of straight continuity and completed patterns as a pentagon in both orientations.…”

Section: Discussionmentioning

confidence: 99%

“…of this experiment showed that infants completed the pattern as a pentagon in both the vertical and diagonal conditions. In contrast, Markovich (2002) and Takashima et al (2009) showed that adults completed Markovich's pattern (Figure 2) as a hexagon in the vertical condition and as a pentagon in the diagonal condition. That is, orientation affected how adults completed the pattern, but not how infants did.…”

Section: Amodal Completion In Infants 107mentioning

confidence: 93%

“…Markovich (2002) and Takashima, Fujii, and Shiina (2009) indicated that object orientation affects amodal completion in adults. They used a gray circle and a black polygon, and one of the angles of the black polygon was occluded by the gray circle.…”

mentioning

confidence: 99%

“… Effect of the pattern's orientation in amodal completion (Markovich, 2002; Takashima et al., 2009). Adult humans tend to complete the black polygon in Pattern A as a hexagon, whereas that in Pattern B as a pentagon.…”

mentioning

confidence: 99%

“…While adults complete this star-like pattern amodally ( Figure 1B), 4-month-old infants complete the pattern linearly with motion information ( Figure 1C). Markovich (2002) and Takashima, Fujii, and Shiina (2009) indicated that object orientation affects amodal completion in adults. They used a gray circle and a black polygon, and one of the angles of the black polygon was occluded by the gray circle.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Amodal completion in infants: Straight continuity versus symmetry1

Takashima

Kanazawa

Yamaguchi

et al. 2011

Japanese Psychological Research

Self Cite

View full text Add to dashboard Cite

A visual pattern's orientation influences how adults amodally complete that pattern. We examined whether this is also the case with infants using Markovich's pattern, consisting of a black polygon partially occluded by a gray disc, which is completed as either a vertically symmetrical hexagon or as a pentagon, depending on the pattern's orientation. Our experiment consisted of two prefamiliarization test trials, six familiarization trials, and two postfamiliarization test trials. In the familiarization trials, two identical Markovich patterns, upright or slanted, were presented to 7-8-month-old infants (N = 28) side by side on a CRT monitor. In the pre-and postfamiliarization test trials, a pentagon and a hexagon were presented side by side. Infants looked longer at the hexagon than at the pentagon in the postfamiliarization test trials. This suggests that infants completed the pattern as a pentagon regardless of the pattern's orientation. This lack of an orientation effect suggests that infants do not use the figure's symmetry as a guiding principle for amodal completion.j pr_450 103..108

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Amodal Completion In Infants 107mentioning

confidence: 93%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Amodal completion in infants: Straight continuity versus symmetry1

Takashima

Kanazawa

Yamaguchi

et al. 2011

Japanese Psychological Research

Self Cite

View full text Add to dashboard Cite

show abstract

Differentiating global and local contour completion using a dot localization paradigm.

Carrigan¹,

Palmer²,

Kellman³

2016

Journal of Experimental Psychology: Human Perception and Perfor

View full text Add to dashboard Cite

Competing theories of partially occluded object perception (amodal completion) emphasize either relatively local contour relationships or global factors such as symmetry. These disparate theories may reflect 2 separate processes: a low-level contour interpolation process and a higher-order global recognition process. The 2 could be distinguished experimentally if only the former produces precise representations of occluded object boundaries. Using a dot localization paradigm, we measured the precision and accuracy of perceived object boundaries for participants instructed to complete occluded objects with divergent local and global interpretations. On each trial, a small red dot was flashed on top of an occluder. Participants reported whether the dot fell inside or outside the occluded object's boundaries. Interleaved, 2-up, 1-down staircases estimated points on the psychometric function where the probability was .707 that the dot would be seen as either outside or inside the occluded object's boundaries. The results reveal that local contour interpolation produces precise and accurate representations of occluded contours, and consistency across observers, but completion according to global symmetry does not. These results support a distinction between local, automatic contour interpolation processes and global processes based on recognition from partial information. (PsycINFO Database Record

show abstract

Spatial Attention Does Not Modulate Holistic Face Processing, Even When Multiple Faces are Present

Norman

Tokarev

2014

Perception

View full text Add to dashboard Cite

The perception of faces is often considered to be unique in comparison with that of other objects in the world. The fact that faces are processed not by their constituent components but by the spatial configuration between those components (holistic face processing--HFP) is often used to support this. Despite two decades of research, however, there is no consensus as to whether or not HFP is a process that is subject to attentional modulation. Here, in two experiments, we used a method to direct spatial attention not previously used in studies of HFP--an exogenous spatial cue--as it offers a robust, rapid, and involuntary method of directing attention. In one experiment we demonstrate that the degree of HFP afforded to a face is not reduced when attention is directed away from that face. In a second experiment we replicate this finding even when the face is simultaneously flanked by other faces--a condition under which a face-specific processing module would, hypothetically, be more sensitive to attentional guidance. These results add to the argument that HFP is carried out independently of attention.

show abstract

Amodal Completion is Not Completed Only behind the Occluder

Cited by 5 publications

References 0 publications

Amodal completion in infants: Straight continuity versus symmetry1

Amodal completion in infants: Straight continuity versus symmetry1

Differentiating global and local contour completion using a dot localization paradigm.

Spatial Attention Does Not Modulate Holistic Face Processing, Even When Multiple Faces are Present

Contact Info

Product

Resources

About