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An electrophysiological index of associative learning correlates with event memories in 14 month old children
Linköping University, Department of Behavioural Sciences and Learning, Disability Research. Linköping University, Faculty of Arts and Sciences. (Utvecklingspsykologi och IHV)
Linköping University, Department of Behavioural Sciences and Learning, Psychology. Linköping University, Faculty of Arts and Sciences. (Utvecklingspsykologi och IHV)ORCID iD: 0000-0001-5025-9975
Institutionen för psykologi, Lunds universitet.
Institutionen för psykologi, Lunds universitet.
2011 (English)Conference paper, Poster (with or without abstract) (Other academic)
Abstract [en]

Deferred imitation (DI) is an early form of event memory that indexes early individual differences in infant cognition but the underlying neural processes is to a large degree uncharted. The present study examines how event-related potentials (ERPs) as a response to an associative learning procedure relates to DI measured with an observation-only design. Thirty children participated and acceptable ERP data was collected from 15 (9 boys).  DI was measured with a thirty minutes delay and ERP was recorded with a Geodesic High Density Net with 128 electrodes. The ERP procedure consisted of two pairs of pictures presented six times (= the learning phase) and a test phase introducing two violations: Two familiar pictures in a new combination (ASSO) or a combination of one familiar and one novel picture (NOV). In addition, visual recognition memory was also measured. ERP revealed an Nc within 300-600 ms post stimuli. A higher mean amplitude was observed for ASSO (p < .05) and a marginal effect was noted for NOV (p = .055). Better DI performance correlated with larger Nc change scores between ASSO and the last presentation in the learning phase (rs (15) = .57; p < .05). Preliminary analyses of early and late slow waves (800 to 1500ms post stimuli) revealed no further relationship between ERP and DI and no significant correlation between DI and visual recognition memory. This finding indicates a possible direct link between electrophysiological indices of learning and behavioral observations of declarative like memory processes in young infants.

Place, publisher, year, edition, pages
2011.
Keyword [en]
Memory, ERP, Infants, Deferred imitation
National Category
Psychology (excluding Applied Psychology)
Identifiers
URN: urn:nbn:se:liu:diva-80773OAI: oai:DiVA.org:liu-80773DiVA: diva2:548181
Conference
15th European Conference on Developmental Psychology, Bergen, Norway, Aug 23-27, 2011
Projects
Långtidsminne hos små barn: Individuella skillnader och elektrofysiologiska korrelat
Funder
FAS, Swedish Council for Working Life and Social Research, 2006-1040
Available from: 2012-08-29 Created: 2012-08-29 Last updated: 2013-09-12

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Nordqvist, EmelieHeimann, Mikael

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Citation style
  • apa
  • harvard1
  • ieee
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  • Other style
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