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- Publications
- Influence
Evidence that three dimensions of psychosis have a distribution in the general population.
- N. Stefanis, M. Hanssen, +5 authors J. van os
- Psychology, Medicine
- Psychological medicine
- 1 February 2002
BACKGROUND
The aims of the study were: first to examine, using clinical symptoms of patients as a template, whether the correlated but independent dimensions of positive, negative and depressive… Expand
Factorial composition of self-rated schizotypal traits among young males undergoing military training.
- N. Stefanis, N. Smyrnis, D. Avramopoulos, I. Evdokimidis, I. Ntzoufras, C. Stefanis
- Medicine, Psychology
- Schizophrenia bulletin
- 2004
The aim of this study within the Athens Study of Psychosis Proneness and Incidence of Schizophrenia (ASPIS) was the examination of the latent structure of schizotypal dimensions among a large… Expand
Frontal lobe dysfunction in amyotrophic lateral sclerosis
- I. Evdokimidis, T. Constantinidis, P. Gourtzelidis, N. Smyrnis, C. Papageorgiou
- Medicine
- Journal of the Neurological Sciences
- 15 March 2002
The aim of the present study was to investigate the involvement of frontal lobe dysfunction in amyotrophic lateral sclerosis (ALS) using ocular motor paradigms and neuropsychological testing.… Expand
The antisaccade task in a sample of 2,006 young men
- I. Evdokimidis, N. Smyrnis, +7 authors C. Stefanis
- Psychology, Medicine
- Experimental Brain Research
- 1 November 2002
Abstract. A population of 2,075 young men aged 18–25 years selected from the conscripts of the Greek Air Force performed an antisaccade task as part of a prospective study for the identification of… Expand
Alterations of T cell subsets in ALS: a systemic immune activation?
- M. Rentzos, E. Evangelopoulos, +4 authors I. Evdokimidis
- Biology, Medicine
- Acta neurologica Scandinavica
- 1 April 2012
Rentzos M, Evangelopoulos E, Sereti E, Zouvelou V, Marmara S, Alexakis T, Evdokimidis I. Alterations of T cell subsets in amyotrophic lateral sclerosis: a systemic immune activation?
Acta Neurol… Expand
COMT Val158Met moderation of stress-induced psychosis.
- N. Stefanis, C. Henquet, +5 authors J. van os
- Psychology, Medicine
- Psychological medicine
- 1 November 2007
BACKGROUND
Exposure to stressful life events increases the risk of developing a psychotic disorder. Moreover, increased reactivity to stress seems to represent part of the vulnerability for… Expand
Psychometric properties of the Greek version of the Schizotypal Personality Questionnaire (SPQ) in young male obligatory conscripts: A two years test–retest study
- N. Stefanis, S. Vitoratou, I. Ntzoufras, N. Smyrnis, I. Evdokimidis, Costas N. Stefanis
- Psychology
- 1 November 2006
Abstract The aim of this paper was the assessment of the psychometric properties of the Greek version of the Schizotypal Personality Questionnaire (SPQ), within the Athens Study of Psychosis… Expand
Effect of COMT Val158Met polymorphism on the Continuous Performance Test, Identical Pairs Version: tuning rather than improving performance.
- N. Stefanis, J. van os, D. Avramopoulos, N. Smyrnis, I. Evdokimidis, C. Stefanis
- Psychology, Medicine
- The American journal of psychiatry
- 1 September 2005
OBJECTIVE
It has been suggested that variation in catechol O-methyltransferase (COMT) activity associated with variation in COMT Val158Met genotypes may result in enhanced or reduced cognitive… Expand
Effect of Schizotypy on Cognitive Performance and Its Tuning by COMT val158 Met Genotype Variations in a Large Population of Young Men
- N. Smyrnis, D. Avramopoulos, I. Evdokimidis, C. Stefanis, N. Stefanis
- Psychology, Medicine
- Biological Psychiatry
- 1 April 2007
BACKGROUND
Mirroring schizophrenia, specific dimensions of schizotypy are related to cognitive dysfunction. The relation of schizotypy and state psychopathology to cognitive performance and its link… Expand
Speed-accuracy trade-off in the performance of pointing movements in different directions in two-dimensional space
- N. Smyrnis, I. Evdokimidis, T. Constantinidis, G. Kastrinakis
- Mathematics, Medicine
- Experimental Brain Research
- 20 April 2000
Abstract. Nine healthy subjects performed 2D pointing movements using a joystick that controlled a screen cursor. Continuous visual feedback was provided until movement completion. Three variables… Expand