Human development of perceptual organization

Kovács, Ilona

doi:10.1016/s0042-6989(00)00055-9

Cited by 201 publications

(173 citation statements)

References 71 publications

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“…They argue that the visual system of 4-5-year-old children is not sufficiently mature to integrate entire images spatially, thus they see more piecemeal rivalry than adults. This is in line with their earlier findings in contour integration (Kovács, 2000) or spatial integration (Káldy and Kovács, 2003).…”

Section: Development Of Binocular Visionsupporting

confidence: 93%

“…There is an observable inhomogeneity in the development of different visual functions and the maturation of neuroanatomical circuits participating in visual information processing. In contrast with the data that suggest that colour vision develops early in life, integration of contours (Kovács, 2000) or of the visual context (Káldy and Kovács, 2003) is not fully developed even at the age of 4-5 years. Káldy and Kovács (2003) examined the effect of visual context on size perception by means of the Ebbinghaus illusion (or Titchener circles , FIG.…”

Section: Development Of Form and Visual Context Perceptioncontrasting

confidence: 88%

“…Though many crucial visual functions are shown to emerge during the first year of life, visual development is not finished until the end of childhood (Kovács, 2000). There is an observable inhomogeneity in the development of different visual functions and the maturation of neuroanatomical circuits participating in visual information processing.…”

Section: Development Of Form and Visual Context Perceptionmentioning

confidence: 99%

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Phenomenal Qualities and the Development of Perceptual Integration

Hudák

Jakab

Kovács

2013

Handbook of Experimental Phenomenology

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In this chapter, data concerning the development of principal aspects of vision is reviewed. First, the development of colour vision and luminance perception is discussed. Relevant data accumulated so far indicates that perception of colour and luminance is present by 6-9 months of age. The presence of typical color illusions at this age suggests that the phenomenal character of color experience is comparable to that of adults well before the first birthday. Thus it seems plausible that color perception develops on the grounds of genetically preprogrammed maturation, in which perceptual learning and plasticity play a limited role. This claim also seems to be supported by case studies of newly sighted patients. On the other hand, perceptual integration of edges and forms in the visual environment as well as the development of binocular vision, and the perception of ambiguous figures seem to depend crucially on early perceptual learning. Both developmental and clinical data indicate a more significant involvement of perceptual learning in such mid-level and higher level perceptual phenomena.

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Section: Development Of Binocular Visionsupporting

confidence: 93%

Section: Development Of Form and Visual Context Perceptioncontrasting

confidence: 88%

Section: Development Of Form and Visual Context Perceptionmentioning

confidence: 99%

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Phenomenal Qualities and the Development of Perceptual Integration

Hudák

Jakab

Kovács

2013

Handbook of Experimental Phenomenology

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“…However, studies with older children suggest that there is a protracted developmental trajectory for the ability to integrate local visual features spatially across the visual field [Hadad & Kimchi, 2006;Kovács, 2000;Kovács, Kozma, Feher, & Benedek, 1999]. In particular, several studies have reported that sensitivity to global structure in hierarchical visual stimuli, in which multiple levels of structure co-exist from the local elements to the global structure, is not fully mature even in late childhood and early adolescence [Burack, Enns, Iarocci, & Randolph, 2000;Dukette & Stiles, 1996;Enns, Burack, Iarocci, & Randolph, 2000;Mondloch, Geldart, Maurer, & de Schonen, 2003;Mottron et al, 1999;Porporino, Shore, Iarocci, & Burack, 2004].…”

Section: Development Of Perceptual Organization In Typical Individualsmentioning

confidence: 99%

Missing the big picture: impaired development of global shape processing in autism

et al. 2008

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Individuals with autism exhibit hypersensitivity to local elements of the input, which may interfere with the ability to group visual elements perceptually. We investigated the development of perceptual grouping abilities in highfunctioning individuals with autism (HFA) across a wide age range (8-30 years) using a classic compound letter global/ local (GL) task and a more fine-grained microgenetic prime paradigm (MPP), including both few-and many-element hierarchical displays. In the GL task, contrary to the typically developing (TD) controls, HFA participants did not develop an increasing sensitivity to the global information with age. In the MPP, like the TD controls, individuals with autism at all three age groups evinced a bias to individuate the few-element displays. However, contrary to the TD controls, the HFA group failed to show age-related improvements in the ability to encode the global shape of the many-element displays. In fact, across the age range, the HFA group was consistently faster than the TD controls at perceiving the local elements in these displays. These results indicate that in autism the full process of garnering shape information from perceptual grouping, which is essential for the ability to do fast and efficient object recognition and identification, never matures, and this is especially evident in adolescence when this ability begins to improve in TD individuals. The atypical development of these perceptual organizational abilities may disrupt processing of visually presented objects, which may, in turn, fundamentally impede the development of major aspects of the social and emotional behaviors in individuals with autism.

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“…There is also evidence that, though knowledge of contextual relationships in image structure begins to be acquired in the first few months of life, it continues to develop over several years in human vision. (Kovács 2000;Docherty et al in press). Figure 2.…”

Section: Dynamic Coordination In Cognition and Behaviormentioning

confidence: 99%

Dynamic Coordination in Brain and Mind

Phillips¹,

von²,

Singer³

2010

Dynamic Coordination in the Brain

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Our goal here is to clarify the concept of "dynamic coordination", and to note major issues that it raises for the cognitive neurosciences. In general, coordinating interactions are those that produce coherent and relevant overall patterns of activity, while preserving the essential individual identities and functions of the activities coordinated. "Dynamic coordination" is the coordination that is created on a moment-by-moment basis so as to deal effectively with unpredictable aspects of the current situation. We distinguish different computational goals for dynamic coordination, and outline issues that arise concerning local cortical circuits, brain systems, cognition, and evolution. Our focus here is on dynamic coordination by widely distributed processes of self-organisation, but we also discuss the role of central executive processes.2

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Human development of perceptual organization

Cited by 201 publications

References 71 publications

Phenomenal Qualities and the Development of Perceptual Integration

Phenomenal Qualities and the Development of Perceptual Integration

Missing the big picture: impaired development of global shape processing in autism

Dynamic Coordination in Brain and Mind

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