Functional connectivity changes in second language vocabulary learning

► Twelve healthy adults were trained in an intensive computerized French lexical program. ► Shallow and consolidation learning phases were evaluated by a picture-naming task in fMRI. ► Changes of integration value of language and control networks in L1 and L2 were measured. ► For L1, total, inter an...

Full description

Saved in:
Bibliographic Details
Published in:Brain and language 2013-01, Vol.124 (1), p.56-65
Main Authors: Ghazi Saidi, Ladan, Perlbarg, Vincent, Marrelec, Guillaume, Pélégrini-Issac, Mélani, Benali, Habib, Ansaldo, Ana-Inés
Format: Article
Language:English
Subjects:
Acoustic Stimulation
Adult
Aged
Bilingualism. Multilingualism
Biological and medical sciences
Brain Hemisphere Functions
Brain Mapping - methods
Cognition - physiology
Cognitive control
Cognitive Processes
Cognitive science
Female
French
Functional connectivity
Fundamental and applied biological sciences. Psychology
Humans
Indo European Languages
Language
Language Processing
Learning - physiology
Longitudinal Studies
Magnetic Resonance Imaging
Male
Middle Aged
Multilingualism
Native Language
Nerve Net - physiology
Networks
Neural networks
Neuroscience
Photic Stimulation
Phrase Structure
Proficiency
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Role
Second language
Second Language Learning
Shallow and consolidation learning phases
Verbal Learning - physiology
Vocabulary
Vocabulary Development
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:► Twelve healthy adults were trained in an intensive computerized French lexical program. ► Shallow and consolidation learning phases were evaluated by a picture-naming task in fMRI. ► Changes of integration value of language and control networks in L1 and L2 were measured. ► For L1, total, inter and intra integration values remained unchanged across learning phases. ► For L2, they decreased as the level of proficiency improved and cognitive load decreased. Functional connectivity changes in the language network (Price, 2010), and in a control network involved in second language (L2) processing (Abutalebi & Green, 2007) were examined in a group of Persian (L1) speakers learning French (L2) words. Measures of network integration that characterize the global integrative state of a network (Marrelec, Bellec et al., 2008) were gathered, in the shallow and consolidation phases of L2 vocabulary learning. Functional connectivity remained unchanged across learning phases for L1, whereas total, between- and within-network integration levels decreased as proficiency for L2 increased. The results of this study provide the first functional connectivity evidence regarding the dynamic role of the language processing and cognitive control networks in L2 learning (Abutalebi, Cappa, & Perani, 2005; Altarriba & Heredia, 2008; Leonard et al., 2011; Parker-Jones et al., 2011). Thus, increased proficiency results in a higher degree of automaticity and lower cognitive effort (Segalowitz & Hulstijn, 2005).
ISSN:0093-934X
1090-2155
DOI:10.1016/j.bandl.2012.11.008