Sự Phát Triển Cảm Biến Vỏ Não Đối Với Hình Thức Chữ Viết Vùng Nhìn
Tóm tắt
Khả năng nhanh chóng và hiệu quả trong việc trích xuất hình thức chữ viết trực quan là rất quan trọng khi sử dụng việc đọc như một công cụ cho việc học. Chúng tôi mô tả nghiên cứu fMRI dài hạn đầu tiên nhằm ghi nhận các thay đổi cá nhân về độ nhạy của vỏ não đối với chữ viết khi việc đọc phát triển. Chúng tôi đã thực hiện bốn phép đo chức năng não và kỹ năng đọc hàng năm ở một nhóm trẻ em đa dạng, ban đầu từ 7 đến 12 tuổi. Kết quả cho thấy có sự gia tăng độ nhạy của trẻ em đối với sự hiện diện của từ ngữ ở sulcus occipito-temporal bên trái phía sau (LOTS) theo độ tuổi, gần với vị trí giải phẫu của vùng hình thức chữ viết trực quan. Hơn nữa, tỷ lệ gia tăng độ nhạy từ LOTS đặc biệt liên quan đến tỷ lệ cải thiện trong hiệu suất từ ngữ nhìn, một chỉ số về tốc độ đọc từ ngữ biểu hiện nhanh. Các vùng vỏ não khác, bao gồm V1, vỏ não đỉnh phía sau và đồng nghiệp bên phải của LOTS, không cho thấy những thay đổi phát triển như vậy. Những kết quả này hỗ trợ về mặt phát triển cho giả thuyết rằng LOTS là một phần của mạch vỏ não trích xuất các hình thức chữ viết trực quan nhanh chóng và hiệu quả và làm nổi bật tầm quan trọng của việc phát triển độ nhạy vỏ não đối với sự hiện diện của từ ngữ trong việc tiếp thu kỹ năng đọc.
Từ khóa
#cảm biến vỏ não #hình thức chữ viết trực quan #phát triển #kỹ năng đọc #khảo sát fMRITài liệu tham khảo
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