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Le rôle des oscillations alpha dans l’inhibition/le refoulement de stimuli linguistiques : une étude à l’interface de la psychanalyse et des neurosciences motrices.

Unité : Unité de Recherche en Neurophysiologie et de Biomécanique du Mouvement | ULB382

Description :

This doctoral thesis is an interdisciplinary project, combining concepts and methods from the fields of psychology, psycholinguistics, neuroscience, and
motor skills sciences. The objective is investigating the role of alpha wave oscillations (8-12Hz), measured via electroencephalography (EEG), during a
ThinkNothink task (Anderson and Green, 2001). The ThinkNothink paradigm is a cognitive adaptation of the well-known Go-NoGo task that allows to measure response
Some of the main hypotheses are:
1)	Stronger event-related alpha synchronization (ERS) in the Nothink condition, compared to the Think
condition in participants with low psychotic traits. This would be interpreted as a sign of active inhibition of the suppressed stimuli. 
2)	Participants with
high psychotic traits will not manifest such stronger alpha ERS. For them, the Nothink instruction will be equivalent to a Think instruction. 
3)	This
distinction between participants with low psychotic traits and participants with high psychotic traits will be even more pronounced within the phonologically
linked stimulus category. This would be explained as a sign of predominant System 1 (associative) processes and a deficit of System 2 (inhibitory)
processes (Kahneman, 2011).
4)	Participants with high psychotic traits will show no significant difference in the number of correctly recalled word pairs between
the two experimental conditions, consistent with the expected EEG results described above. This distinction will be even more salient in the
phonologically linked stimulus category.

Collaboration : Cotutelle Prof. Ariane Bazan & Prof. Ana Maria Cebolla

Liste des responsables :

  • VITKOVA Viktoriya