Lateralized Neural Responses to Letters and Digits in First Graders.
Saved in:
| Title: | Lateralized Neural Responses to Letters and Digits in First Graders. |
|---|---|
| Authors: | Lochy, Aliette (AUTHOR), Schiltz, Christine (AUTHOR) |
| Source: | Child Development. Nov/Dec2019, Vol. 90 Issue 6, p1866-1874. 9p. 1 Diagram, 1 Chart, 3 Graphs. |
| Subjects: | First grade (Education), Visual cortex, Geometric shapes, Electroencephalography, Neural circuitry, Children, Reading, Evaluation research, Research funding, Cerebral cortex, Nervous system, Child development, Research methodology, Research, Visual perception, Cerebral dominance, Comparative studies |
| Abstract: | The emergence of visual cortex specialization for culturally acquired characters like letters and digits, both arbitrary shapes related to specific cognitive domains, is yet unclear. Here, 20 young children (6.12 years old) were tested with a frequency-tagging paradigm coupled with electroencephalogram recordings to assess discrimination responses of letters from digits and vice-versa. One category of stimuli (e.g., letters) was periodically inserted (1/5) in streams of the other category (e.g., digits) presented at a fast rate (6 Hz). Results show clear right-lateralized discrimination responses at 6 Hz/5 for digits within letters, and a trend for left-lateralization for letters. These results support an early developmental emergence of ventral occipito-temporal cortex specialization for visual recognition of digits and letters, potentially in relation with relevant coactivated brain networks. [ABSTRACT FROM AUTHOR] |
| Copyright of Child Development is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
|
Full text is not displayed to guests.
Login for full access.
|
|
| Abstract: | The emergence of visual cortex specialization for culturally acquired characters like letters and digits, both arbitrary shapes related to specific cognitive domains, is yet unclear. Here, 20 young children (6.12 years old) were tested with a frequency-tagging paradigm coupled with electroencephalogram recordings to assess discrimination responses of letters from digits and vice-versa. One category of stimuli (e.g., letters) was periodically inserted (1/5) in streams of the other category (e.g., digits) presented at a fast rate (6 Hz). Results show clear right-lateralized discrimination responses at 6 Hz/5 for digits within letters, and a trend for left-lateralization for letters. These results support an early developmental emergence of ventral occipito-temporal cortex specialization for visual recognition of digits and letters, potentially in relation with relevant coactivated brain networks. [ABSTRACT FROM AUTHOR] |
|---|---|
| ISSN: | 00093920 |
| DOI: | 10.1111/cdev.13337 |
