Old/New Effect of Digital Memory Retrieval in Chinese Dyscalculia: Evidence from ERP

Autor/inn/en	Wang, Enguo; Du, Chenguang; Ma, Yujun
Titel	Old/New Effect of Digital Memory Retrieval in Chinese Dyscalculia: Evidence from ERP
Quelle	In: Journal of Learning Disabilities, 50 (2017) 2, S.158-167 (10 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0022-2194
DOI	10.1177/0022219415599344
Schlagwörter	Foreign Countries; Learning Disabilities; Mathematics Skills; Children; Diagnostic Tests; Brain; Comparative Analysis; Control Groups; Memory; Brain Hemisphere Functions; Recall (Psychology); Intelligence Tests; Numbers; Responses; Reaction Time; Stimuli; Accuracy; China; Raven Progressive Matrices + Suchen Sie Ihr Suchwort? Ausland; Learning handicap; Lernbehinderung; Mathmatics achievement; Mathematics ability; Mathematische Kompetenz; Child; Kind; Kinder; Diagnostic test; Diagnostischer Test; Gehirn; Gedächtnis; Abberufung; Intelligence test; Intelligenztest; Zahlenraum; Reaktionsvermögen; Anreizsystem
Abstract	This study reports the neurophysiological and behavioral correlates of digital memory retrieval features in Chinese individuals with and without dyscalculia. A total of 18 children with dyscalculia (ages 11.5-13.5) and 18 controls were tested, and their event-related potentials were digitally recorded simultaneously with behavior measurement. Behavioral data showed that the dyscalculia group had lower hit rates and higher false rates than the control group. The electroencephalography results showed that both groups had a significant old/new effect and that this effect was greater in the control group. In the 300 to 400 ms processing stages, both groups showed significant differences in digital memory retrieval in the frontal regions. In the 400 to 500 and 500 to 600 ms epochs, the old/new effect in the control group was significantly greater than it was in the dyscalculia group at the frontal, central, and parietal regions. In the 600 to 700 ms processing stages, both groups showed significant differences in digital memory retrieval in the frontal, central, parietal, and occipital regions. These results suggest that individuals with dyscalculia exhibit impaired digital memory retrieval. Extraction failure may be an important cause of calculation difficulties. (As Provided).
Anmerkungen	SAGE Publications and Hammill Institute on Disabilities. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: http://sagepub.com
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01