Modifying the Brain Activation of Poor Readers during Sentence Comprehension with Extended Remedial Instruction: A Longitudinal Study of Neuroplasticity

Autor/inn/en	Meyler, Ann; Keller, Timothy A.; Cherkassky, Vladimir L.; Gabrieli, John D. E.; Just, Marcel Adam
Titel	Modifying the Brain Activation of Poor Readers during Sentence Comprehension with Extended Remedial Instruction: A Longitudinal Study of Neuroplasticity
Quelle	In: Neuropsychologia, 46 (2008) 10, S.2580-2592 (13 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0028-3932
DOI	10.1016/j.neuropsychologia.2008.03.012
Schlagwörter	Reading Difficulties; Brain Hemisphere Functions; Reading Strategies; Diagnostic Tests; Reading Comprehension; Grade 5; Cognitive Processes; Remedial Instruction; Longitudinal Studies; Sentences; Reading Improvement; Elementary School Students; Instructional Effectiveness + Suchen Sie Ihr Suchwort? Reading difficulty; Leseschwierigkeit; Reading strategy; Leselernstufe; Lesetechnik; Diagnostic test; Diagnostischer Test; Leseverstehen; School year 05; 5. Schuljahr; Schuljahr 05; Cognitive process; Kognitiver Prozess; Förderkurs; Longitudinal study; Longitudinal method; Longitudinal methods; Längsschnittuntersuchung; Sentence analysis; Satzanalyse; Unterrichtserfolg
Abstract	This study used fMRI to longitudinally assess the impact of intensive remedial instruction on cortical activation among 5th grade poor readers during a sentence comprehension task. The children were tested at three time points: prior to remediation, after 100 h of intensive instruction, and 1 year after the instruction had ended. Changes in brain activation were also measured among 5th grade good readers at the same time points for comparison. The central finding was that prior to instruction, the poor readers had significantly less activation than good readers bilaterally in the parietal cortex. Immediately after instruction, poor readers made substantial gains in reading ability, and demonstrated significantly increased activation in the left angular gyrus and the left superior parietal lobule. Activation in these regions continued to increase among poor readers 1 year post-remediation, resulting in a normalization of the activation. These results are interpreted as reflecting changes in the processes involved in word-level and sentence-level assembly. Areas of overactivation were also found among poor readers in the medial frontal cortex, possibly indicating a more effortful and attentionally guided reading strategy. (Contains 4 tables and 5 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10