The Occipital Cortex in the Blind : Lessons About Plasticity and Vision  

Oleh:

Amedi, Amir ; Merabet, Lotfi B. ; Bermpohl, Felix ; Pascual-Leone, Alvaro

Jenis: Article from Journal - e-Journal
Dalam koleksi: Current Directions in Psychological Science vol. 14 no. 06 (Dec. 2005), page 306-311.
Topik: plasticity; visual cortex; blindness; Braille reading; verbal memory
Fulltext: 06. The Occipital Cortex in the Blind - Lessons About Plasticity and Vision.pdf (379.95KB)

Isi artikel

Studying the brains of blind individuals provides a unique opportunity to investigate how the brain changes and adapts in response to afferent (input) and efferent (output) demands.We discuss evidence suggesting that regions of the brain normally associated with the processing of visual information undergo remarkable dynamic change in response to blindness. These neuroplastic changes implicate not only processing carried out by the remaining senses but also higher cognitive functions such as language and memory. A strong emphasis is placed on evidence obtained from advanced neuroimaging techniques that allow researchers to identify areas of human brain activity, as well as from lesion approaches (both reversible and irreversible) to address the functional relevance and role of these activated areas. A possible mechanism and conceptual framework for these physiological and behavioral changes is proposed.

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