The direct segment of the arcuate fasciculus is predictive of longitudinal reading change
| Autor: | James R. Booth, Margaret M. Gullick |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Male
Aging medicine.medical_specialty Adolescent Cognitive Neuroscience media_common.quotation_subject Audiology behavioral disciplines and activities Article 050105 experimental psychology Superior longitudinal fasciculus Probabilistic tractography 03 medical and health sciences Fluency Magnetic resonance imaging 0302 clinical medicine Arcuate fasciculus Predictive Value of Tests Reading (process) Fractional anisotropy medicine Humans 0501 psychology and cognitive sciences Child media_common lcsh:QP351-495 05 social sciences Arcuate Nucleus of Hypothalamus Coherence (statistics) lcsh:Neurophysiology and neuropsychology Diffusion tensor imaging medicine.anatomical_structure Reading Reading development Longitudinal Anisotropy Female Nerve Net Psychology 030217 neurology & neurosurgery Cognitive psychology Diffusion MRI |
| Zdroj: | Developmental Cognitive Neuroscience, Vol 13, Iss C, Pp 68-74 (2015) Developmental cognitive neuroscience |
| ISSN: | 1878-9293 |
| DOI: | 10.1016/j.dcn.2015.05.002 |
| Popis: | Structural coherence across the arcuate fasciculus has previously been related to reading skill, but the arcuate may be divisible into distinct subtracts which support different functions. Here, we examine longitudinal data from 30 children between the ages of 8 and 14 to determine whether initial coherence in any of the arcuate's subsections is predictive of changes in reading across a longitudinal interval of approximately three years. The arcuate was divided using probabilistic tractography; mean fractional anisotropy across each subtract was extracted for each participant. Time 1 to Time 2 change in reading skill (identification, fluency score average) was significantly and uniquely predicted by only direct fronto-temporal arcuate segment coherence. Participants with lower direct segment FA demonstrated decreases in reading scores, potentially reflecting lessened improvements due to continued inefficient processing. These results were consistent in the older and younger halves of the sample. As such, we demonstrate that it is specifically the direct segment of the arcuate that may support and be predictive of reading skill both initially and longitudinally across development. |
| Databáze: | OpenAIRE |
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