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Tapio Seppänen

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Jukka Kortelainen; Tapio Seppänen; XIAOFENG JIA; Nitish V Thakor
Increased electroencephalographic gamma activity reveals awakening from isoflurane anaesthesia in rats.
Antti M Kiviniemi; Benjamin Kuch; Petra Zubin Maslov; Tapio Seppänen; Arne Sieber; Mikko P Tulppo; Lovro Uglesic; Toni Breskovic; Zeljko Dujic
Heart rate variability during static and dynamic breath-hold dives in elite divers.
Minna J Silfverhuth; Heidi Hintsala; Jukka Kortelainen; Tapio Seppänen
Experimental comparison of connectivity measures with simulated EEG signals.

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All Publications

2012: Jukka Kortelainen; Tapio Seppänen; XIAOFENG JIA; Nitish V Thakor
Increased electroencephalographic gamma activity reveals awakening from isoflurane anaesthesia in rats.
British journal of anaesthesia 2012;109(5):782-9.
2012: Antti M Kiviniemi; Benjamin Kuch; Petra Zubin Maslov; Tapio Seppänen; Arne Sieber; Mikko P Tulppo; Lovro Uglesic; Toni Breskovic; Zeljko Dujic
Heart rate variability during static and dynamic breath-hold dives in elite divers.
Autonomic neuroscience : basic & clinical 2012;169(2):95-101.
2012: Minna J Silfverhuth; Heidi Hintsala; Jukka Kortelainen; Tapio Seppänen
Experimental comparison of connectivity measures with simulated EEG signals.
Medical & biological engineering & computing 2012;50(7):683-8.
2012: Tuomas Kenttä; Terho Lehtimäki; Rami Lehtinen; Tuomo Nieminen; Kjell C Nikus; Tapio Seppänen; Jari Viik; Mika Kähönen; Mari Karsikas; Heikki V Huikuri
Postexercise recovery of the spatial QRS/T angle as a predictor of sudden cardiac death.
Heart rhythm : the official journal of the Heart Rhythm Society 2012;9(7):1083-9.
2012: Harriet Hägglund; Anne S Koponen; Juha E Peltonen; Tapio Seppänen; Suvi Tiinanen; Mikko P Tulppo; Arja Uusitalo; Jyrki Aho; Heikki O Tikkanen
Cardiovascular autonomic nervous system function and aerobic capacity in type 1 diabetes.
Frontiers in physiology 2012;3():356.
2011: Minna J Silfverhuth; Eila Sonkajärvi; Kalervo Suominen; Osmo Tervonen; Seppo Alahuhta; Ville Jäntti; Vesa Kiviniemi; Jukka Kortelainen; Jaakko Niinimäki; Jyrki Ruohonen; Tapio Seppänen
A characteristic time sequence of epileptic activity in EEG during dynamic penicillin-induced focal epilepsy--a preliminary study.
Seizure : the journal of the British Epilepsy Association 2011;20(7):513-9.
2011: Antti M Kiviniemi; Robert J Petrella; Maxim Rachinsky; Tapio Seppänen; Rosemary Craen; Maria F Frances; Heikki V Huikuri; Suvi Tiinanen; Mikko P Tulppo; J Kevin Shoemaker
α-Adrenergic effects on low-frequency oscillations in blood pressure and R-R intervals during sympathetic activation.
Experimental physiology 2011;96(8):718-35.
2011: Mikko P Tulppo; Arto J Hautala; Mika Kallio; Antti M Kiviniemi; Timo H Mäkikallio; Tapio Seppänen; Suvi Tiinanen; Heikki V Huikuri
Sympatho-vagal interaction in the recovery phase of exercise.
Clinical physiology and functional imaging 2011;31(4):272-81.
2011: Tuomas Kenttä; Mari Karsikas; M Juhani Junttila; Juha S Perkiömäki; Tapio Seppänen; Antti M Kiviniemi; Tuomo Nieminen; Terho Lehtimäki; Kjell Nikus; Rami Lehtinen; Jari Viik; Mika Kähönen; Heikki V Huikuri
QRS-T morphology measured from exercise electrocardiogram as a predictor of cardiac mortality.
Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology 2011;13(5):701-7.
2011: Antti M Kiviniemi; Mikko P Tulppo; Arto J Hautala; Timo H Mäkikallio; Juha S Perkiömäki; Tapio Seppänen; Heikki V Huikuri
Long-term outcome of patients with chronotropic incompetence after an acute myocardial infarction.
Annals of medicine 2011;43(1):33-9.
2010: Tapio Seppänen; M Koskinen; T M Seppänen; O-P Alho
Addendum to 'Continuous assessment of nasal airflow resistance by adaptive modeling'.
Physiological measurement 2010;31(11):1547-51.
2010: Jenna Heikkinen; Eira Jansson-Verkasalo; Juhani Toivanen; Kalervo Suominen; Eero Väyrynen; Irma Moilanen; Tapio Seppänen
Perception of basic emotions from speech prosody in adolescents with Asperger's syndrome.
Logopedics, phoniatrics, vocology 2010;35(3):113-20.
2010: Tuomas Kenttä; Mari Karsikas; Antti M Kiviniemi; Mikko P Tulppo; Tapio Seppänen; Heikki V Huikuri
Dynamics and rate-dependence of the spatial angle between ventricular depolarization and repolarization wave fronts during exercise ECG.
Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc 2010;15(3):264-75.
2010: Miia K Hyytinen-Oinas; Kari Ylitalo; Mari Karsikas; Tapio Seppänen; M J Pekka Raatikainen; Paavo Uusimaa; Heikki V Huikuri; Juha S Perkiömäki
Electrocardiographic abnormalities and ventricular tachyarrhythmias after myocardial infarction.
Scandinavian cardiovascular journal : SCJ 2010;44(1):15-23.
2010: Antti M Kiviniemi; Suvi Tiinanen; Arto J Hautala; Tapio Seppänen; Timo H Mäkikallio; Heikki V Huikuri; Mikko P Tulppo
Frequency of slow oscillations in arterial pressure and R-R intervals during muscle metaboreflex activation.
Autonomic neuroscience : basic & clinical 2010;152(1-2):88-95.
2009: Tapio Seppänen; M Koskinen; T M Seppänen; O-P Alho
Continuous assessment of nasal airflow resistance by adaptive modeling.
Physiological measurement 2009;30(11):1197-209.
2009: Jukka Kortelainen; Miika Koskinen; Seppo Mustola; Tapio Seppänen
Effects of remifentanil on the spectrum and quantitative parameters of electroencephalogram in propofol anesthesia.
Anesthesiology 2009;111(3):574-83.
2008: Jukka Kortelainen; Miika Koskinen; Seppo Mustola; Tapio Seppänen
Time-frequency properties of electroencephalogram during induction of anesthesia.
Neuroscience letters 2008;446(2-3):70-4.
2008: Jukka Kortelainen; Miika Koskinen; Seppo Mustola; Tapio Seppänen
Remifentanil modifies the relation of electroencephalographic spectral changes and clinical endpoints in propofol anesthesia.
Anesthesiology 2008;109(2):198-205.
2008: M L Koivikko; Mari Karsikas; Pasi Salmela; Juha S Tapanainen; Aimo Ruokonen; Tapio Seppänen; Heikki V Huikuri; Juha S Perkiömäki
Effects of controlled hypoglycaemia on cardiac repolarisation in patients with type 1 diabetes.
Diabetologia 2008;51(3):426-35.
2008: Arto J Hautala; Antti M Kiviniemi; Timo H Mäkikallio; Suvi Tiinanen; Tapio Seppänen; Heikki V Huikuri; Mikko P Tulppo
Muscle sympathetic nerve activity at rest compared to exercise tolerance.
European journal of applied physiology 2008;102(5):533-8.
2008: Mirja Peltola; Mikko P Tulppo; Antti M Kiviniemi; Arto J Hautala; Tapio Seppänen; Petra Barthel; Axel Bauer; Georg Schmidt; Heikki V Huikuri; Timo H Mäkikallio
Respiratory sinus arrhythmia as a predictor of sudden cardiac death after myocardial infarction.
Annals of medicine 2008;40(5):376-82.
2008: Suvi Tiinanen; Mikko P Tulppo; Tapio Seppänen
Reducing the effect of respiration in baroreflex sensitivity estimation with adaptive filtering.
IEEE transactions on bio-medical engineering 2008;55(1):51-9.
2007: Mari Karsikas; Heikki V Huikuri; Juha S Perkiömäki; Lea Lehtola; Tapio Seppänen
Influence of paper electrocardiogram digitizing on T wave and QRS complex morphology parameters.
Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc 2007;12(4):282-90.
2007: Mari Karsikas; Juha S Perkiömäki; Heikki Huikuri; Tapio Seppänen
Influence of size and location of myocardial infarction on TCRT parameter: a computer simulation study.
Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 2007;2007():1414-7.
2007: Antti M Kiviniemi; Mikko P Tulppo; Dan Wichterle; Arto J Hautala; Suvi Tiinanen; Tapio Seppänen; Timo H Mäkikallio; Heikki V Huikuri
Novel spectral indexes of heart rate variability as predictors of sudden and non-sudden cardiac death after an acute myocardial infarction.
Annals of medicine 2007;39(1):54-62.
2006: Petri Itäranta; Lijun Chi; Tapio Seppänen; Mikael Niku; Juha Tuukkanen; Hellevi Peltoketo; Seppo Vainio
Wnt-4 signaling is involved in the control of smooth muscle cell fate via Bmp-4 in the medullary stroma of the developing kidney.
Developmental biology 2006;293(2):473-83.
2006: Miika Koskinen; Tapio Seppänen; Shanbao Tong; Seppo Mustola; Nitish V Thakor
Monotonicity of approximate entropy during transition from awareness to unresponsiveness due to propofol anesthetic induction.
IEEE transactions on bio-medical engineering 2006;53(4):669-75.
2006: Antti M Kiviniemi; Arto J Hautala; Timo H Mäkikallio; Tapio Seppänen; Heikki V Huikuri; Mikko P Tulppo
Cardiac vagal outflow after aerobic training by analysis of high-frequency oscillation of the R-R interval.
European journal of applied physiology 2006;96(6):686-92.
2006: Juha S Perkiömäki; Miia Hyytinen-Oinas; Mari Karsikas; Tapio Seppänen; Katerina Hnatkova; Marek Malik; Heikki V Huikuri
Usefulness of T-wave loop and QRS complex loop to predict mortality after acute myocardial infarction.
The American journal of cardiology 2006;97(3):353-60.
2006: Juhani Toivanen; Teija Waaramaa; Paavo Alku; Anne-Maria Laukkanen; Tapio Seppänen; Eero Väyrynen; Matti Airas
Emotions in [a]: a perceptual and acoustic study.
Logopedics, phoniatrics, vocology 2006;31(1):43-8.
2006: Eeva H Linna; Juha S Perkiömäki; Mari Karsikas; Tapio Seppänen; Markku Savolainen; Y Antero Kesäniemi; Timo H Mäkikallio; Heikki V Huikuri
Functional significance of KCNH2 (HERG) K897T polymorphism for cardiac repolarization assessed by analysis of T-wave morphology.
Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc 2006;11(1):57-62.
2005: Minna Silfverhuth; Jyrki Ruohonen; Kalervo Suominen; Jaakko Niinimäki; Eila Sonkajärvi; Vesa Kiviniemi; Tapio Seppänen; Seppo Alahuhta; Ville Jäntti; Osmo Tervonen
BOLD signal increase preceeds EEG spike activity--a dynamic penicillin induced focal epilepsy in deep anesthesia.
NeuroImage 2005;27(4):715-24.
2005: Miika Koskinen; Seppo Mustola; Tapio Seppänen
Relation of EEG spectrum progression to loss of responsiveness during induction of anesthesia with propofol.
Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology 2005;116(9):2069-76.
2005: Mikko P Tulppo; Antti M Kiviniemi; Arto J Hautala; Mika Kallio; Tapio Seppänen; Timo H Mäkikallio; Heikki V Huikuri
Physiological background of the loss of fractal heart rate dynamics.
Circulation 2005;112(3):314-9.
2004: Antti M Kiviniemi; Arto J Hautala; Tapio Seppänen; Timo H Mäkikallio; Heikki V Huikuri; Mikko P Tulppo
Saturation of high-frequency oscillations of R-R intervals in healthy subjects and patients after acute myocardial infarction during ambulatory conditions.
American journal of physiology. Heart and circulatory physiology 2004;287(5):H1921-7.
2004: Minna Silfverhuth; Jyrki Ruohonen; Kalervo Suominen; Eila Sonkajärvi; Timo Salomäki; Vesa Kiviniemi; Tapio Seppänen; Seppo Alahuhta; Ville Jäntti; Osmo Tervonen
BOLD-contrast functional MRI signal changes related to intermittent rhythmic delta activity in EEG during voluntary hyperventilation-simultaneous EEG and fMRI study.
NeuroImage 2004;22(1):222-31.
2004: Mirja Peltola; Tapio Seppänen; Timo H Mäkikallio; Heikki V Huikuri
Effects and significance of premature beats on fractal correlation properties of R-R interval dynamics.
Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc 2004;9(2):127-35.
2004: Juhani Toivanen; Eero Väyrynen; Tapio Seppänen
Automatic discrimination of emotion from spoken Finnish.
Language and speech 2004;47(Pt 4):383-412.
2003: Vesa Jokinen; Jari M Tapanainen; Tapio Seppänen; Heikki V Huikuri
Temporal changes and prognostic significance of measures of heart rate dynamics after acute myocardial infarction in the beta-blocking era.
The American journal of cardiology 2003;92(8):907-12.
2003: Arto J Hautala; Timo H Mäkikallio; Tapio Seppänen; Heikki V Huikuri; Mikko P Tulppo
Short-term correlation properties of R-R interval dynamics at different exercise intensity levels.
Clinical physiology and functional imaging 2003;23(4):215-23.
2003: Kai S Lindgren; Timo H Mäkikallio; Tapio Seppänen; M J Pekka Raatikainen; Agustin Castellanos; Robert J Myerburg; Heikki V Huikuri
Heart rate turbulence after ventricular and atrial premature beats in subjects without structural heart disease.
Journal of cardiovascular electrophysiology 2003;14(5):447-52.
2003: Mirja Peltola; Timo H Mäkikallio; Tapio Seppänen; Jari M Tapanainen; Mirja Salo; Mikko P Tulppo; Heikki V Huikuri
Heart rate recovery after exercise as a predictor of mortality among survivors of acute myocardial infarction.
The American journal of cardiology 2003;91(6):711-4.
2002: Mika O K Särkelä; Seppo Mustola; Tapio Seppänen; Miika Koskinen; Pasi Lepola; Kalervo Suominen; Tatu Juvonen; Heli K Tolvanen-Laakso; Ville Jäntti
Automatic analysis and monitoring of burst suppression in anesthesia.
Journal of clinical monitoring and computing 2002;17(2):125-34.
2002: Timo H Mäkikallio; Heikki V Huikuri; Robert J Myerburg; Tapio Seppänen; Martin Kloosterman; Alberto Interian; Agustin Castellanos; Raul D Mitrani
Differences in the activation patterns between sustained and self-terminating episodes of human ventricular fibrillation.
Annals of medicine 2002;34(2):130-5.
2001: Mikko P Tulppo; Timo H Mäkikallio; Tapio Seppänen; K Shoemaker; Elli Tutungi; Richard L Hughson; Heikki V Huikuri
Effects of pharmacological adrenergic and vagal modulation on fractal heart rate dynamics.
Clinical physiology (Oxford, England) 2001;21(5):515-23.
2001: Mikko P Tulppo; Richard L Hughson; Timo H Mäkikallio; K E Juhani Airaksinen; Tapio Seppänen; H V Huikuri
Effects of exercise and passive head-up tilt on fractal and complexity properties of heart rate dynamics.
American journal of physiology. Heart and circulatory physiology 2001;280(3):H1081-7.
2001: Miika Koskinen; Tapio Seppänen; J Tuukkanen; A Yli-Hankala; Ville Jäntti
Propofol anesthesia induces phase synchronization changes in EEG.
Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology 2001;112(2):386-92.
2001: Mirja Peltola; Heikki V Huikuri; Tapio Seppänen
Ectopic beats in heart rate variability analysis: effects of editing on time and frequency domain measures.
Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc 2001;6(1):5-17.
2000: Anja Tuulonen; HI Alanko; Pauli Hyytinen; J Veijola; Tapio Seppänen; P Juhani Airaksinen
Digital imaging and microtexture analysis of the nerve fiber layer.
Journal of glaucoma 2000;9(1):5-9.
1998: Heikki V Huikuri; Timo H Mäkikallio; K E Juhani Airaksinen; Tapio Seppänen; P Puukka; Ismo Räihä; Leif B Sourander
Power-law relationship of heart rate variability as a predictor of mortality in the elderly.
Circulation 1998;97(20):2031-6.
1998: Mikko P Tulppo; Timo H Mäkikallio; Tapio Seppänen; Juhani Airaksinen; Heikki V Huikuri
Heart rate dynamics during accentuated sympathovagal interaction.
The American journal of physiology 1998;274(3 Pt 2):H810-6.
1998: Mikko P Tulppo; Timo H Mäkikallio; Tapio Seppänen; Raija T Laukkanen; Heikki V Huikuri
Vagal modulation of heart rate during exercise: effects of age and physical fitness.
The American journal of physiology 1998;274(2 Pt 2):H424-9.
1997: Timo H Mäkikallio; Tapio Seppänen; K E Juhani Airaksinen; Juhani Koistinen; Mikko P Tulppo; Chung-Kang Peng; AL Goldberger; Heikki V Huikuri
Dynamic analysis of heart rate may predict subsequent ventricular tachycardia after myocardial infarction.
The American journal of cardiology 1997;80(6):779-83.
1996: Timo H Mäkikallio; Tapio Seppänen; M Niemelä; K E Juhani Airaksinen; Mikko P Tulppo; Heikki V Huikuri
Abnormalities in beat to beat complexity of heart rate dynamics in patients with a previous myocardial infarction.
Journal of the American College of Cardiology 1996;28(4):1005-11.
1996: Mikko P Tulppo; Timo H Mäkikallio; T E S Takala; Tapio Seppänen; Heikki V Huikuri
Quantitative beat-to-beat analysis of heart rate dynamics during exercise.
The American journal of physiology 1996;271(1 Pt 2):H244-52.
1996: Heikki V Huikuri; Tapio Seppänen; M Juhani Koistinen; J Airaksinen; Markku Ikäheimo; Agustin Castellanos; Robert J Myerburg
Abnormalities in beat-to-beat dynamics of heart rate before the spontaneous onset of life-threatening ventricular tachyarrhythmias in patients with prior myocardial infarction.
Circulation 1996;93(10):1836-44.
1995: Heikki V Huikuri; M Juhani Koistinen; S Yli-Mäyry; K E Juhani Airaksinen; Tapio Seppänen; Markku Ikäheimo; Robert J Myerburg
Impaired low-frequency oscillations of heart rate in patients with prior acute myocardial infarction and life-threatening arrhythmias.
The American journal of cardiology 1995;76(1):56-60.
1993: Heikki V Huikuri; J O Valkama; K E Juhani Airaksinen; Tapio Seppänen; K M Kessler; J T Takkunen; Robert J Myerburg
Frequency domain measures of heart rate variability before the onset of nonsustained and sustained ventricular tachycardia in patients with coronary artery disease.
Circulation 1993;87(4):1220-8.
1992: Heikki V Huikuri; Markku Linnaluoto; Tapio Seppänen; K E Juhani Airaksinen; K M Kessler; J T Takkunen; Robert J Myerburg
Circadian rhythm of heart rate variability in survivors of cardiac arrest.
The American journal of cardiology 1992;70(6):610-5.