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The fear-inhibited light reflex: importance of the anticipation of an aversive event.
Bitsios P, Szabadi E, Bradshaw CM. Bitsios P, et al. Int J Psychophysiol. 2004 Mar;52(1):87-95. doi: 10.1016/j.ijpsycho.2003.12.006. Int J Psychophysiol. 2004. PMID: 15003375 Clinical Trial.
The 5-min pupillary alertness test is sensitive to modafinil: a placebo controlled study in patients with sleep apnea.
Nikolaou A, Schiza SE, Giakoumaki SG, Roussos P, Siafakas N, Bitsios P. Nikolaou A, et al. Psychopharmacology (Berl). 2008 Feb;196(2):167-75. doi: 10.1007/s00213-007-0949-y. Epub 2007 Sep 25. Psychopharmacology (Berl). 2008. PMID: 17899016 Clinical Trial.
The patients' resting pupil diameter (RPD) was sampled over 5 min in darkness before (10:00 A.M.) and after treatment (2:00 P.M.), and their light reflexes were elicited and recorded in darkness with an infrared video pupillometer. RESULTS: We found a circadian miosis at 2 …
The patients' resting pupil diameter (RPD) was sampled over 5 min in darkness before (10:00 A.M.) and after treatment (2:00 P.M.), an …
Low baseline startle and deficient affective startle modulation in remitted bipolar disorder patients and their unaffected siblings.
Giakoumaki SG, Bitsios P, Frangou S, Roussos P, Aasen I, Galea A, Kumari V. Giakoumaki SG, et al. Psychophysiology. 2010 Jul 1;47(4):659-68. doi: 10.1111/j.1469-8986.2010.00977.x. Epub 2010 Mar 11. Psychophysiology. 2010. PMID: 20233338
Comparison of ketanserin, buspirone and propranolol on arousal, pupil size and autonomic function in healthy volunteers.
Koudas V, Nikolaou A, Hourdaki E, Giakoumaki SG, Roussos P, Bitsios P. Koudas V, et al. Psychopharmacology (Berl). 2009 Jul;205(1):1-9. doi: 10.1007/s00213-009-1508-5. Epub 2009 Mar 14. Psychopharmacology (Berl). 2009. PMID: 19288084 Clinical Trial.
Parametric exploration of the fear-inhibited light reflex.
Hourdaki E, Giakoumaki SG, Grinakis V, Theou K, Karataraki M, Bitsios P. Hourdaki E, et al. Psychophysiology. 2005 Jul;42(4):447-55. doi: 10.1111/j.1469-8986.2005.00301.x. Psychophysiology. 2005. PMID: 16008773 Clinical Trial.
Relationship of the 'fear-inhibited light reflex' to the level of state/trait anxiety in healthy subjects.
Bitsios P, Szabadi E, Bradshaw CM. Bitsios P, et al. Int J Psychophysiol. 2002 Feb;43(2):177-84. doi: 10.1016/s0167-8760(01)00173-8. Int J Psychophysiol. 2002. PMID: 11809520 Clinical Trial.
RESULTS: There was a positive correlation between the state anxiety scores and the within-subject (SAFE-THREAT) difference in light reflex amplitude (P<0.05). ...
RESULTS: There was a positive correlation between the state anxiety scores and the within-subject (SAFE-THREAT) difference in light reflex a …
Comparison of the antidepressants reboxetine, fluvoxamine and amitriptyline upon spontaneous pupillary fluctuations in healthy human volunteers.
Phillips MA, Bitsios P, Szabadi E, Bradshaw CM. Phillips MA, et al. Psychopharmacology (Berl). 2000 Mar;149(1):72-6. doi: 10.1007/s002139900334. Psychopharmacology (Berl). 2000. PMID: 10789885 Clinical Trial.
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