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Neurocase

Behavior, Cognition and Neuroscience
Volume 12, 2006 - Issue 5
171
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Original Articles

Visual Recognition and Visually Guided Action After Early Bilateral Lesion of Occipital Cortex: A Behavioral Study of a 4.6-year-old Girl

, , , , , , , , & show all
Pages 263-279
Received 10 May 2006
Accepted 21 Sep 2006
Published online: 19 Feb 2007
 

We report the case of a 4.6-year-old girl born pre-term with early bilateral occipital damage. It was revealed that the child had non-severely impaired basic visual abilities and ocular motility, a selective perceptual deficit of figure-ground segregation, impaired visual recognition and abnormal navigating through space. Even if the child's visual functioning was not optimal, this was the expression of adaptive anatomic and functional brain modifications that occurred following the early lesion. Anatomic brain structure was studied with anatomic MRI and Diffusor Tensor Imaging (DTI)-MRI.

This behavioral study may provide an important contribution to understanding the impact of an early lesion of the visual system on the development of visual functions and on the immature brain's potential for reorganisation related to when the damage occurred.

We gratefully remember Professor Marcello Mario Pierro for leading the research and clinical work in Pediatric Neurorehabilitation with enormous passion and absolute dedication. We thank Dr. Marco Montes, of Ophthalmology Unity, for assistance with V.E.P. study.

We thank Rosa Maria Conte for her precious collaboration in the translation. This study was supported by grants from Italian Ministry of Health-Project: ICS 120.2/RF2003.PS/03/3.

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