کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
925360 921483 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Age, sex, and verbal abilities affect location of linguistic connectivity in ventral visual pathway
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی روانپزشکی بیولوژیکی
پیش نمایش صفحه اول مقاله
Age, sex, and verbal abilities affect location of linguistic connectivity in ventral visual pathway
چکیده انگلیسی

Previous studies have shown that the strength of connectivity between regions can vary depending upon the cognitive demands of a task. In this study, the location of task-dependent connectivity from the primary visual cortex (V1) was examined in 43 children (ages 9–15) performing visual tasks; connectivity maxima were identified for a visual task requiring a linguistic (orthographic) judgment. Age, sex, and verbal IQ interacted to affect maxima location. Increases in age and verbal IQ produced similar shifts in maxima location; in girls, connectivity maxima shifted primarily laterally within the left temporal lobe, whereas the shift was primarily posterior within occipital cortex among boys. A composite map across all subjects shows an expansion in the area of connectivity with age. Results show that the location of visual/linguistic connectivity varies systematically during development, suggesting that both sex differences and developmental changes in V1 connectivity are related to linguistic function.


► Lexical task-dependent connectivity examined in ventral visual stream.
► Location of connectivity maxima varies systematically by age, sex and verbal IQ.
► Increases in age and verbal IQ produced similar shifts in maxima location.
► Lateral shift in temporal lobe for girls, posterior occipital shift for boys.
► Area of connectivity expands with age.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain and Language - Volume 124, Issue 2, February 2013, Pages 184–193
نویسندگان
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