Right Hemisphere Advantage in Statistical Learning: Evidence From a Probabilistic Sequence Learning Task
  • Metaadatok
Tartalom: http://dx.doi.org/10.1016/j.brs.2014.11.008
Archívum: MTA Könyvtár
Gyűjtemény: Status = Published


Type = Article
Cím:
Right Hemisphere Advantage in Statistical Learning: Evidence From a Probabilistic Sequence Learning Task
Létrehozó:
Janacsek, Karolina
Ambrus, Géza Gergely
Paulus, Walter
Antal, Andrea
Németh, Dezső
Dátum:
2015
Téma:
BF Psychology / lélektan
BF13 Memory and learning / emlékezet, tanulás
Tartalmi leírás:
Background: Picking up statistical regularities of patterns from the environment is essential for predictive
and adaptive behavior. One of the most important challenges is to understand how statistical learning
occurs and how the acquired information consolidates and stabilizes in the brain. Evidence suggests that
the prefrontal cortex (PFC) has a critical role in these processes; the division of labor between hemispheres,
however, is less characterized.
Objective/hypothesis: The aim of the present study was to directly investigate the causal role of the right
and left PFC in statistical learning and its consolidation.
Methods: Healthy, young adults were trained on a probabilistic sequence learning task. Anodal transcranial
direct current stimulation (tDCS) over the right or left dorsolateral PFC (DLPFC) was applied during the
training in order to modify learning-related cortical plasticity in the targeted brain regions by increasing
neural excitability. Performance was tested during and immediately after the stimulation, 2-h and 24-h later.
Results: We found that the anodal tDCS over the right DLPFC led to enhanced learning performance both
after the 2-h and 24-h retention periods, suggesting the causal role of this area in statistical learning. In
contrast, we did not find any effect of left DLPFC stimulation on learning.
Conclusions: These results highlight the role of the right fronto-striatal network in statistical learning and
its consolidation.
Típus:
Article
PeerReviewed
Formátum:
text
text
Azonosító:
Janacsek, Karolina and Ambrus, Géza Gergely and Paulus, Walter and Antal, Andrea and Németh, Dezső (2015) Right Hemisphere Advantage in Statistical Learning: Evidence From a Probabilistic Sequence Learning Task. Brain Stimulation, 8. pp. 277-282. ISSN 1935-861X
Kapcsolat: