1/6/2024 0 Comments Weak central coherenceThe funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Ĭompeting interests: The authors have declared that no competing interests exist.Ī cognitive theory - the Weak Central Coherence (WCC) account - has been proposed to address cognitive weaknesses and strengths in Autism Spectrum Disorder (ASD). This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.įunding: This research was supported by the Portuguese Foundation for Science and Technology. Received: FebruAccepted: Published: June 19, 2012Ĭopyright: © 2012 Bernardino et al. Proulx, Queen Mary University of London, United Kingdom Taken together these findings suggest that other mechanisms such as dorsal stream deficits (largest in WS) may underlie impaired central coherence.Ĭitation: Bernardino I, Mouga S, Almeida J, van Asselen M, Oliveira G, Castelo-Branco M (2012) A Direct Comparison of Local-Global Integration in Autism and other Developmental Disorders: Implications for the Central Coherence Hypothesis. We conclude that abnormal central coherence does not provide a comprehensive explanation of ASD deficits and is more prominent in populations, namely WS, characterized by strongly impaired dorsal stream functioning and other phenotypic traits that contrast with the autistic phenotype. WS participants were the most impaired in central coherence whereas ASD participants showed a pattern of coherence loss found in other studies only in four task conditions favoring local analysis but it tended to disappear when matching for intellectual disability. Finally, we used a visuoconstructive task to measure local/global perceptual interference. We replicated these experiments under 4 additional conditions (memory/perception*local/global) in which subjects reported the correct local or global configurations. Central coherence was first measured by requiring subjects to perform local/global preference judgments using hierarchical figures under 6 different experimental settings (memory and perception tasks with 3 distinct geometries with and without local/global manipulations). An alternative account includes dorsal stream dysfunction which dominates in WS. We predicted that central coherence should be most impaired in ASD for the weak central coherence account to hold true. We addressed this hypothesis by testing central coherence in ASD (n = 19 with intellectual disability and n = 20 without intellectual disability), Williams syndrome (WS, n = 18), matched controls with intellectual disability (n = 20) and chronological age-matched controls (n = 20). Several experimental paradigms based on hierarchical figures have been used to test this controversial account. The weak central coherence hypothesis represents one of the current explanatory models in Autism Spectrum Disorders (ASD).
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