PERCEPTUAL ORGANIZATION AND CENTRAL COHERENCE DURING THE VISUAL PROCESSING IN CHILDREN WITH AUTISM: EVIDENCE FOR DISRUPTED FUNCTIONAL CONNECTIVITY IN AUTISTIC BRAIN

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BAYRAMI MANSOOR; HASHEMI TOORAJ; MAHMOUD ALILOU MAJID; ALIZADE ZAREI MEHDI

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Journal: Archives of Rehabilitation (Journal of Rehabilitation) Year:2014 | Volume:15 | Issue:2 Page(s): 12-21

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Title

PERCEPTUAL ORGANIZATION AND CENTRAL COHERENCE DURING THE VISUAL PROCESSING IN CHILDREN WITH AUTISM: EVIDENCE FOR DISRUPTED FUNCTIONAL CONNECTIVITY IN AUTISTIC BRAIN

Author(s)

BAYRAMI MANSOOR | HASHEMI TOORAJ | MAHMOUD ALILOU MAJID | ALIZADE ZAREI MEHDI | Issue Writer Certificate

Keywords

AUTISMQ1

CENTRAL COHERENCEQ2

PERCEPTUAL ORGANIZATIONQ2

FUNCTIONAL CONNECTIVITYQ2

IMAGE RECOGNITIONQ2

Abstract

Objective: A variety of evidence demonstrated altered perceptual functioning pattern in the brain of children with AUTISM. This can be related to or the cause of other diagnostic symptoms in AUTISM spectrum. In the present study, the visual- PERCEPTUAL ORGANIZATION in autistic children is studied. These processes require CENTRAL COHERENCE and typical FUNCTIONAL CONNECTIVITY among neural structure in the brain.Materials and Methods25 high functioning autistic boys and 25 neuro - typical boys were assessed in terms of visual perceptual processing. Visual stimuli include fragmented (incomplete) and complete images of animate and inanimate objects which were presented in a monitor. The subject’s task included rapid and accurate naming of images that have been seen. Responses were compared in two groups by independent- T test. The effect of completeness and image type factors on samples’ visual processing were also analyzed by repeated measure analysis of variance. Statistical analysis was performed using spss software seventeenth edition.Results: Interaction effect of completeness, image type and group on subjects’ visual processing was significant (p<0.05). Also autistic children have lower performance in naming incomplete images as well as recognizing inanimate objects (p=0.000); however, both groups were similar in recognition of whole image of animate and inanimate objects (p=0.597). On the other hand, all the samples perform better in detection of complete images than fragmented images (p=0.000).Conclusion: Failure to recognize the fragmented images of objects, in particular, inanimate, could be marker of impaired processes related to CENTRAL COHERENCE of visual information in the brain of autistic children. Detection of these images in these children was significantly different from neuro- typical children. This may be the indicator of impaired visual PERCEPTUAL ORGANIZATION and an evidence for disrupted FUNCTIONAL CONNECTIVITY among the brain area in children with AUTISM.

Cites

NORMALIZING THE BENDER VISUAL-MOTOR GESTALT TEST FOR 4 TO 7 YEARS OLD CHILDREN OF TEHRAN, IRAN

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APA: Copy

BAYRAMI, MANSOOR, HASHEMI, TOORAJ, MAHMOUD ALILOU, MAJID, & ALIZADE ZAREI, MEHDI. (2014). PERCEPTUAL ORGANIZATION AND CENTRAL COHERENCE DURING THE VISUAL PROCESSING IN CHILDREN WITH AUTISM: EVIDENCE FOR DISRUPTED FUNCTIONAL CONNECTIVITY IN AUTISTIC BRAIN. ARCHIVES OF REHABILITATION (JOURNAL OF REHABILITATION), 15(2), 12-21. SID. https://sid.ir/paper/43426/en

Vancouver: Copy

BAYRAMI MANSOOR, HASHEMI TOORAJ, MAHMOUD ALILOU MAJID, ALIZADE ZAREI MEHDI. PERCEPTUAL ORGANIZATION AND CENTRAL COHERENCE DURING THE VISUAL PROCESSING IN CHILDREN WITH AUTISM: EVIDENCE FOR DISRUPTED FUNCTIONAL CONNECTIVITY IN AUTISTIC BRAIN. ARCHIVES OF REHABILITATION (JOURNAL OF REHABILITATION)[Internet]. 2014;15(2):12-21. Available from: https://sid.ir/paper/43426/en

IEEE: Copy

MANSOOR BAYRAMI, TOORAJ HASHEMI, MAJID MAHMOUD ALILOU, and MEHDI ALIZADE ZAREI, “PERCEPTUAL ORGANIZATION AND CENTRAL COHERENCE DURING THE VISUAL PROCESSING IN CHILDREN WITH AUTISM: EVIDENCE FOR DISRUPTED FUNCTIONAL CONNECTIVITY IN AUTISTIC BRAIN,” ARCHIVES OF REHABILITATION (JOURNAL OF REHABILITATION), vol. 15, no. 2, pp. 12–21, 2014, [Online]. Available: https://sid.ir/paper/43426/en

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