The heterogeneity of working memory impairment in neurodevelopmental disorders : Evidence from three neurogenetic disorders.
Conference (2014, April 18)Detailed reference viewed: 13 (1 ULg)
Relationships between mind-wandering and attentional control abilities in young adults and adolescents
Stawarczyk, David ; Majerus, Steve ; Catale, Corinne et al
in Acta Psychologica (2014), 148
Recent findings suggest that mind-wandering—the occurrence of thoughts that are both stimulus-independent and task-unrelated—corresponds to temporary failures in attentional control processes involved in ... [more ▼]
Recent findings suggest that mind-wandering—the occurrence of thoughts that are both stimulus-independent and task-unrelated—corresponds to temporary failures in attentional control processes involved in maintaining constant task-focused attention. Studies supporting this proposal are, however, limited by a possible confound between mind-wandering episodes and other kinds of conscious experiences, such as external distractions (i.e., interoceptive sensations and exteroceptive perceptions). In the present study, we addressed this issue by examining, in adolescents and young adults, the relations between tasks measuring attentional control abilities and a measure of mind-wandering that is distinct from external distractions. We observed (1) that adolescents experienced more frequent external distractions, but not more mind-wandering, than young adults during the Sustained Attention to Response Task (SART) and (2) that, in young adults, the influence of external distractions on SART performance was fully accounted for by attentional control abilities, whereas mind-wandering was associated with decreases in SART performance above and beyond what was explained by attentional control abilities. These results show that mind-wandering cannot be entirely reduced to failures in the ability to maintain one’s attention focused on task, and suggest that external distractions rather than mind-wandering are due to attentional control failures. [less ▲]Detailed reference viewed: 47 (11 ULg)
The impact of lexical frequency on sentence comprehension in children with specific language impairment
Leclercq, Anne-Lise ; Majerus, Steve ; et al
in Research in Developmental Disabilities (2014), 35
Children with SLI generally exhibit poor sentence comprehension skills. We examined the specific impact of grammatical complexity and lexical frequency on comprehension performance, yielding contrasting ... [more ▼]
Children with SLI generally exhibit poor sentence comprehension skills. We examined the specific impact of grammatical complexity and lexical frequency on comprehension performance, yielding contrasting results. The present study sheds new light on sentence comprehension in children with SLI by investigating a linguistic factor which has attracted little research interest: the impact of the lexical frequency of known words on sentence comprehension. We also examined the impact of grammatical complexity and sentence length by independently varying these two factors. Fifteen children with SLI, 15 age- and IQ-matched controls, and 15 controls matched on lexical and grammatical skills, performed sentence comprehension tasks in which three linguistic factors were manipulated: lexical frequency (sentences containing words of either low or high lexical frequency), grammatical complexity (sentence containing either a subject relative clause or an object relative clause) and sentence length (either short or long sentences). Results indicated that children with SLI performed more poorly overall compared to age- and IQmatched children and to lexical and morphosyntactic age-matched children. However, their performance was not more affected by either sentence length or clause type than that of control children. Only lexical frequency affected sentence comprehension to a greater extent in children with SLI relative to the control groups, revealing that SLI children’s sentence comprehension abilities are particularly affected by the presence of lowfrequency but familiar words. [less ▲]Detailed reference viewed: 68 (16 ULg)
Preserved Covert Cognition in Noncommunicative Patients With Severe Brain Injury?
; ; et al
in Neurorehabilitation and Neural Repair (2014)Detailed reference viewed: 26 (10 ULg)
Memoire de travail verbale ou Comment s'en sortir des méandres théoriques.
Conference (2014)Detailed reference viewed: 40 (5 ULg)
The Mental Whiteboard Hypothesis on Serial Order in Working Memory
; ; Majerus, Steve et al
in Frontiers in Human Neuroscience (2014), 8Detailed reference viewed: 16 (2 ULg)
La mémoire à court terme/de travail : Hétérogénéité des déficits à travers les syndromes neurogénétiques?
Scientific conference (2014)Detailed reference viewed: 19 (1 ULg)
Decoding neural correlates of verbal working memory by attention-based visual working memory.
Majerus, Steve ; ; et al
Scientific conference (2014)Detailed reference viewed: 26 (5 ULg)
Rééducation des déficits de la mémoire à court terme: Quo vadimus?
Scientific conference (2014)Detailed reference viewed: 20 (3 ULg)
The genetic heterogeneity of verbal short-term memory deficits: Evidence from three syndromes
Conference (2014)Detailed reference viewed: 20 (2 ULg)
Better neuronal efficiency after emotional competences training: an fMRI study
Hansenne, Michel ; ; Feyers, Dorothée et al
in Psychologica Belgica (2014), 54Detailed reference viewed: 12 (1 ULg)
Common neural substrates for ordinal representation in short-term memory, numerical and alphabetical cognition
Attout, Lucie ; ; Salmon, Eric et al
in PLoS ONE (2014), 9Detailed reference viewed: 26 (5 ULg)
The impact of aging and hearing status on verbal working memory
Verhaegen, Clémence ; Collette, Fabienne ; Majerus, Steve
in Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition (2014), 21(4), 464-482Detailed reference viewed: 35 (18 ULg)
The relationship between working memory for serial order and numerical development: a longitudinal study
Attout, Lucie ; ; Majerus, Steve
in Developmental Psychology (2014), 50(6), 1667-1679Detailed reference viewed: 44 (19 ULg)
Coding of serial order in verbal working memory is supported by ordinal representations shared with numerical cognition
Majerus, Steve ; Attout, Lucie
Conference (2013, September 29)Detailed reference viewed: 8 (1 ULg)
Difficultés des apprentissages dans les troubles neurodéveloppementaux d'origine génétique.
Scientific conference (2013, September 19)Detailed reference viewed: 12 (0 ULg)
The importance of short-term memory for serial order in L2 learning.
Conference (2013, September 03)Detailed reference viewed: 10 (3 ULg)
Interactions with musical long-term memory are a critical component of musical working memory
Gorin, Simon ; Majerus, Steve
Poster (2013, August 10)
The nature and mechanisms of working memory (WM) for musical information remain poorly understood. The aim of this study is to show that musical WM strongly depends upon long-term memory (LTM) mechanisms ... [more ▼]
The nature and mechanisms of working memory (WM) for musical information remain poorly understood. The aim of this study is to show that musical WM strongly depends upon long-term memory (LTM) mechanisms and requires access to the long-term musical knowledge base. Two groups of participants (musicians and non-musicians) participated first in an implicit learning task during which they heard for about 30 minutes a continuous sequence of tones governed by a new musical grammar. Then, they performed an immediate serial recall task of musical sequences of increasing length; half of the sequences were constructed in accordance to the rules of the new grammar presented during the implicit learning task. Participants have to reproduce the sequences by humming and their performances were calculated on the basis of the deviation between their production and the stimulus needed to be reproduced. The results showed a significant advantage for the lists governed by the grammar previously learned. Overall, this study shows that performance on a musical WM task is enhanced by musical knowledge stored in LTM. This study is the first to demonstrate the dependency of musical WM on musical LTM knowledge, implying that existing models of musical WM need to be extended to account for this WM-LTM interaction. [less ▲]Detailed reference viewed: 43 (8 ULg)