Perceptual Closure in Acute Paranoid Schizophrenics

1961 ◽  
Vol 5 (4) ◽  
pp. 406 ◽  
Author(s):  
SOLOMON SNYDER
Keyword(s):  
Perceptual Closure

scholarly journals Reduced intrinsic visual cortical connectivity is associated with impaired perceptual closure in schizophrenia

2017 ◽  
Vol 15 ◽  
pp. 45-52 ◽  
Author(s):  
Vincent van de Ven ◽  
Anna Rotarska Jagiela ◽  
Viola Oertel-Knöchel ◽  
David E.J. Linden
Keyword(s):  
Cortical Connectivity ◽  
Perceptual Closure ◽  
Visual Cortical

Closure Principle: Relations across Domains

2002 ◽  
Vol 94 (3) ◽  
pp. 896-898 ◽  
Author(s):  
Christina M. Frederick-Recascino ◽  
Judith K. Wisher
Keyword(s):  
Need For Closure ◽  
Closure Principle ◽  
Perceptual Closure

The present study examined a possible relationship between perceptual closure and social need for closure. These closure abilities were not correlated across domains of application.

Comparative Study of Factor Structure of Raven's Coloured Progressive Matrices

1980 ◽  
Vol 51 (3_suppl2) ◽  
pp. 1244-1246 ◽  
Author(s):  
Armin Schmidtke ◽  
Sylvia Schaller
Keyword(s):  
Factor Structure ◽  
Age Groups ◽  
Similarity Coefficient ◽  
Abstract Reasoning ◽  
High Similarity ◽  
Factor Solution ◽  
Factor Matrix ◽  
Perceptual Closure ◽  
Mean Similarity ◽  
Three Factor

The Raven Coloured Progressive Matrices were administered on group or individual bases to children ranging in age from 4 yr. 9 mo. to 11 yr. 0 mo. ( N = 728). Factor analysis yielded three factors: 1. Perceptual closure involving complex figures and patterns with heterogeneous inner structures, 2. Concrete and abstract reasoning, 3. Completion of homogeneous patterns and recognition of given elements. Factor matrix comparisons across age groups resulted in a mean similarity coefficient of .75. Comparisons of data with earlier analyses also resulted in high similarity. This supports the hypothesis of a three-factor structure rather than a four-factor solution or a simple dual classification into items which can be solved by perceptual processes and those which require conceptual solutions.

Applying Transcranial Magnetic Stimulation (TMS) Over the Dorsal Visual Pathway Induces Schizophrenia-like Disruption of Perceptual Closure

2016 ◽  
Vol 29 (4) ◽  
pp. 552-560 ◽  
Author(s):  
Revital Amiaz ◽  
Dana Vainiger ◽  
Ari A. Gershon ◽  
Mark Weiser ◽  
Michal Lavidor ◽  
...  
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Magnetic Stimulation ◽  
Visual Pathway ◽  
Perceptual Closure

scholarly journals Selective impairment of perceptual closure in autism

2016 ◽  
Vol 16 (12) ◽  
pp. 477
Author(s):  
Mohammad-Reza A. Dehaqani ◽  
Mehdi Alizadeh Zarei ◽  
Abdol-Hossein Vahabie ◽  
Hossein Esteky
Keyword(s):  
Perceptual Closure ◽  
Selective Impairment

scholarly journals Multimodal Computational Modeling of Visual Object Recognition Deficits but Intact Repetition Priming in Schizophrenia

2020 ◽  
Vol 11 ◽  
Author(s):  
Pejman Sehatpour ◽  
Anahita Bassir Nia ◽  
Devin Adair ◽  
Zhishun Wang ◽  
Heloise M. DeBaun ◽  
...  
Keyword(s):  
Prefrontal Cortex ◽  
Hippocampal Formation ◽  
Critical Role ◽  
Sensory Information ◽  
Visual Object ◽  
Visual Object Recognition ◽  
Visual Stream ◽  
Lateral Occipital Complex ◽  
Line Drawings ◽  
Perceptual Closure

The term perceptual closure refers to the neural processes responsible for “filling-in” missing information in the visual image under highly adverse viewing conditions such as fog or camouflage. Here we used a closure task that required the participants to identify barely recognizable fragmented line-drawings of common objects. Patients with schizophrenia have been shown to perform poorly on this task. Following priming, controls and importantly patients can complete the line-drawings at greater levels of fragmentation behaviorally, suggesting an improvement in their ability to perform the task. Closure phenomena have been shown to involve a distributed network of cortical regions, notably the lateral occipital complex (LOC) of the ventral visual stream, dorsal visual stream (DS), hippocampal formation (HIPP) and the prefrontal cortex (PFC). We have previously demonstrated the failure of closure processes in schizophrenia and shown that the dysregulation in the sensory information transmitted to the prefrontal cortex plays a critical role in this failure. Here, using a multimodal imaging approach in patients, combining event related electrophysiological recordings (ERP) and functional magnetic resonance imaging (fMRI), we characterize the spatiotemporal dynamics of priming in perceptual closure. Using directed functional connectivity measures we demonstrate that priming modifies the network-level interactions between the nodes of closure processing in a manner that is functionally advantageous to patients resulting in the mitigation of their deficit in perceptual closure.

Sign in / Sign up

Export Citation Format

Share Document