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2017-06-01 - Travail avec promoteur/TFE - Anglais - 41 page(s) (A publier)

Blekic Wivine , "Relations between attentional variability, memory bias and attentional control in subclinical post-traumatic symptoms: a dot-probe study", Rossignol Mandy (p) , Simoes Loureiro Isabelle , 2015-10-30, 2017-06-20

  • Codes CREF : Psychopathologie (DI3513), Neurosciences cognitives (DI4296), Neuropsychologie (DI4218), Sciences cognitives (DI4290), Psychologie cognitive (DI4211)
  • Jury : Denis Jennifer (p) , Ris Laurence
  • Unités de recherche UMONS : Psychologie cognitive et Neuropsychologie (P325)
  • Instituts UMONS : Institut de recherche en sciences et technologies du langage (Langage), Institut des Sciences et Technologies de la Santé (Santé)
  • Centres UMONS : Mind & Health (CREMH)

Abstract(s) :

(Anglais) Introduction: almost 20% of the general population seem to maintain post-traumatic stress symptoms (PTSS) over time without meeting the full criteria of PTSD. Attentional Bias Variability (ABV) seems to be a key factor for the maintenance of PTSS, as well as memory biases (MB). ABV is characterised by an oscillation between biases toward (bottom-up influence) and away (top-down influence) threatening information. Authors have started to suggest that attentional control (AC) could be linked to the development of ABV and PTSS (Bardeen et al., 2016). Our study sought to confirm AC hypothesis regarding to ABV and PTSS, as well as exploring the relationships between AC and MB. Method: 52 participants were recruited and assigned to a group (control, low PTSS, high PTSS) according the scores at the post-traumatic symptoms checklist – DMS 5 (PCL-5). An emotional dot-probe task and a remember/know paradigm were created in order to explore ABV and retrieval mechanisms. The AC was measured with the Attentional Control Scale. Results: Greater ABV for high PTSS group was observed, as well as a negative correlation between AC and PTSS. PCL-5 scores predicted greater ABV in later stages of information processing, while ABV in early stages of information processing predicted less elaborated retrieval mechanism. Interestingly, some PTSS were positively correlated with elaborate retrieval mechanisms in low PTSS group. Our hypotheses were validated, except for the MB who needs to be nuanced. Discussion: we were able to link AC to both PTSS and MB, which opened a new research field in literature. While AC seems to influence PTSS development, later ABV might be linked to their maintenance. AC influenced early ABV and memory biases, but another factor seems to be missing in our experiment to determine a path from AC to MB: peritraumatic dissociation. In conclusion, our study gives cue for further research, as well as evidences for preventive therapeutic approaches regarding to AC.