Primacy of wholistic processing and global/local paradigm: A critical review.

Kimchi, Ruth

doi:10.1037/0033-2909.112.1.24

Cited by 651 publications

(668 citation statements)

References 89 publications

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“…It is already known that in adults, many parameters affect the global advantage [see Kimchi, 1992], including the length of the exposure duration and the spacing between and the number of local elements, and are especially relevant to differences in the developmental findings. In some adult studies, asymmetrical global-tolocal interference has only been observed under very short exposure durations [Paquet & Merikle, 1984] and when there are many local elements close together that generate good exemplars of the global figure [Kimchi, 1998;Martin, 1979;Navon, 1983].…”

Section: Discussionmentioning

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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Section: Discussionmentioning

confidence: 99%

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

et al. 2008

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“…A great deal of empirical evidence points toward a fixed integration process that starts with the coarse information (contained in LSFs) and then moves on to the fine information (contained in HSFs), similar to object or form perception in general (e.g. Hughes, Face Perception 18 Fendrich & Reuter-Lorentz, 1990;Hughes, Nozawa & Kitterle, 1996;Kimchi, 1992;Navon, 1977;Sanocki, 1993) . However, some empirical evidence has also indicated processing can be flexible, as processing is sometimes coarse to fine, while others it is fine to coarse.…”

Section: When Are Sfs Selected? the Microgenetic Approachmentioning

confidence: 99%

Face perception: An integrative review of the role of spatial frequencies

Ruiz-Soler

Beltran

2005

Psychological Research

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The aim of this article is to reinterpret the results obtained from the research analyzing the role played by spatial frequencies in face perception. Two main working lines have been explored in this body of research: (a) the critical bandwidth of spatial frequencies that allows face recognition to take place (the masking approach) and (b) the role played by different spatial frequencies while the visual percept is being developed (the microgenetic approach). However, results obtained to date are not satisfactory in that no single explanation accounts for all the data obtained from each of the approaches. We propose that the main factor for understanding the role of spatial frequencies in face perception depends on the interaction between the demands of the task and the information in the image (the diagnostic-recognition approach). Using this new framework, we review the most significant research carried out since the early 1970s to provide a reinterpretation of the data obtained. person/machine interfaces in the near future. The importance of this process has motivated the study of these underlying mechanisms for more than three decades. However, after so much effort, there is still no theory that offers a full explanation of all the results obtained.The research aimed at providing an explanation of the face-recognition process is basically focused on three approaches: cognitive, psychophysical and neurophysiological (see Table 1).The cognitive approach has tried to identify the variables that affect successful perceptual tasks (similarity of stimuli, observation time, level of processing, etc.) and to describe as far as possible the different stages in the process in order to generate a high-level symbolic explanatory model

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“…In a related vein, a phenomenon called global-to-local has been thoroughly studied since Navon's (1977) influential research (e.g., Kimchi, 1992, for a review; see also Hughes, Nozawa & Kitterle, 1996;Lamb & Yund, 1996a, 1996bPaquet & Merikle, 1988;Robertson, 1996; among many others). Navon used hierarchical letters similar to those presented in Fig.…”

Section: Coarse-to-fine Recognitionmentioning

confidence: 99%