Does chronic nicotine consumption influence visual backward masking in schizophrenia and schizotypy ?

Détails

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Etat: Public
Version: Final published version
Licence: CC BY-NC-ND 4.0
ID Serval
serval:BIB_83F212664497
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Does chronic nicotine consumption influence visual backward masking in schizophrenia and schizotypy ?
Périodique
Schizophrenia research : Cognition
Auteur(s)
Shaqiri A., Willemin J., Sierro G., Roinishvili M., Iannontuoni L, Rürup L, Chkonia E, Herzog MH, Mohr C
ISSN
2215-0013
Statut éditorial
Publié
Date de publication
2015
Peer-reviewed
Oui
Volume
2
Numéro
2
Pages
93-99
Langue
anglais
Résumé
Nicotine consumption is higher for people within the schizophrenia spectrum compared to controls. This observation supports the self-medication hypothesis, that nicotine relieves symptoms in, for example, schizophrenia patients. We tested whether performance in an endophenotype of schizophrenia (visual backward masking, VBM) is modulated by nicotine consumption in i) smoking and non-smoking schizophrenia patients, their first-degree relatives, and age-matched controls, ii) non-smoking and smoking university students, and iii) non-smoking, early and late onset nicotine smokers. Overall, our results confirmed that VBM deficits are an endophenotype of schizophrenia, i.e., deficits were highest in patients, followed by their relatives, students scoring high in Cognitive Disorganisation, and controls. Moreover, we found i) beneficial effects of chronic nicotine consumption on VBM performance, in particular with increasing age, and ii) little impact of clinical status.
alone or in interactionwith nicotine consumption on VBMperformance. Given the younger age of undergraduate
students (up to 30 years) versus controls and patients (up to 66 years),we propose that age-dependent VBMdeficits
emergewhen schizotypy effects are targeted in populations of a larger age range, but that nicotine consumption
might counteract these deficits (supporting the self-medication hypothesis).
Mots-clé
Psychopharmacology, Psychosis, High-risk, Psychosis-proneness, Cognition, Vision
Open Access
Oui
Création de la notice
05/06/2015 17:07
Dernière modification de la notice
20/08/2019 15:43
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