Sys Stybe Johansen

3.9k citations

114 papers · 2.9k indexed · 1 hit paper · h-index 30

Impact in

Toxicology top 0.02%
- Forensic Toxicology and Drug Analysis
Clinical Psychology top 2%
- Psychedelics and Drug Studies

Papers in ⓘ

Toxicology 66
- Forensic Toxicology and Drug Analysis 66
Clinical Psychology 30
- Psychedelics and Drug Studies 28

Co-authors: Kristían Línnet (58 shared papers)Marie Katrine Klose Nielsen (23 shared papers)Petur Weihe Dalsgaard (9 shared papers)Erik Arvin (7 shared papers)Gitte M. Knudsen (8 shared papers)Xin Wang (7 shared papers)Asger B. Hansen (6 shared papers)Brice Ozenne (5 shared papers)
Journals: Forensic Science International (22 papers)Journal of Analytical Toxicology (17 papers)Drug Testing and Analysis (10 papers)Journal of Chromatography B (5 papers)Journal of Pharmaceutical and Biomedical Analysis (4 papers)
Partner nations: Denmark United States China

In The Last Decade

Sys Stybe Johansen

109 papers receiving 2.8k citations

Hit Papers

align trajectories log scale

Psychedelic effects of psilocybin correlate with serotonin 2A receptor occupancy and plasma psilocin levels 2019 · 338 citations

Peers

Countries citing papers authored by Sys Stybe Johansen

Since Specialization

Citations

This map shows the geographic impact of Sys Stybe Johansen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Sys Stybe Johansen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Sys Stybe Johansen more than expected).

Fields of papers citing papers by Sys Stybe Johansen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Sys Stybe Johansen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Sys Stybe Johansen. The network helps show where Sys Stybe Johansen may publish in the future.

Co-authors

The 25 scholars most cited alongside Sys Stybe Johansen, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Sys Stybe Johansen Line = papers co-authored together Sys Stybe Johansen links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 114 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Psychedelic effects of psilocybin correlate with serotonin 2A receptor occupancy and plasma psilocin levels Neuropsychopharmacology ·M. Madsen, Patrick M. Fisher, Daniel Burmester, Agnete Dyssegaard, Dea Siggaard Stenbæk, Sara Kristiansen, Sys Stybe Johansen, Sczabolz Lehel, Kristían Línnet, Claus Svarer, David Erritzøe, Brice Ozenne, Gitte M. Knudsen Hit paper breakdown →	2019	338
2	Distribution Patterns, Dermatomal Anesthesia, and Ropivacaine Serum Concentrations After Bilateral Dual Transversus Abdominis Plane Block Regional Anesthesia & Pain Medicine ·Jens Børglum, Kenneth B. Jensen, Anders Christensen, Lotte C. G. Hoegberg, Sys Stybe Johansen, Per‐Arne Lönnqvist, Tejs Jansen	2012	125
3	Simultaneous screening and quantification of 52 common pharmaceuticals and drugs of abuse in hair using UPLC–TOF-MS Forensic Science International ·Marie Katrine Klose Nielsen, Sys Stybe Johansen, Petur Weihe Dalsgaard, Kristían Línnet	2010	124
4	In vitro metabolism studies on mephedrone and analysis of forensic cases Drug Testing and Analysis ·Anders Just Pedersen, Lotte Ask Reitzel, Sys Stybe Johansen, Kristían Línnet	2012	95
5	Psilocybin-induced changes in brain network integrity and segregation correlate with plasma psilocin level and psychedelic experience European Neuropsychopharmacology ·M. Madsen, Dea Siggaard Stenbæk, Albin Arvidsson, Sophia Armand, Maja Rou Marstrand-Joergensen, Sys Stybe Johansen, Kristían Línnet, Brice Ozenne, Gitte M. Knudsen, Patrick M. Fisher	2021	83
6	Chiral separation and quantification of R/S-amphetamine, R/S-methamphetamine, R/S-MDA, R/S-MDMA, and R/S-MDEA in whole blood by GC-EI-MS Journal of Chromatography B ·L RASMUSSEN, K OLSEN, Sys Stybe Johansen	2006	73
7	Quantitative analysis of cocaine and its metabolites in whole blood and urine by high-performance liquid chromatography coupled with tandem mass spectrometry Journal of Chromatography B ·Sys Stybe Johansen, H. Bhatia	2007	71
8	Screening for illicit and medicinal drugs in whole blood using fully automated SPE and ultra‐high‐performance liquid chromatography with TOF‐MS with data‐independent acquisition Journal of Separation Science ·Anders Just Pedersen, Petur Weihe Dalsgaard, Andrej Jaroslav Rode, Brian Schou Rasmussen, Irene Müller, Sys Stybe Johansen, Kristían Línnet	2013	70
9	Pharmacokinetics of ciprofloxacin and effect of repeated dosage on salivary and fecal microflora Antimicrobial Agents and Chemotherapy ·Tom Bergan, C Delin, Sys Stybe Johansen, I. M. Kolstad, C. E. Nord, Sune Thorsteinsson	1986	67
10	Validation of a method for the targeted analysis of 96 drugs in hair by UPLC–MS/MS Journal of Pharmaceutical and Biomedical Analysis ·Camilla Montesano, Sys Stybe Johansen, Marie Katrine Klose Nielsen	2013	66
11	Application of a screening method for fentanyl and its analogues using UHPLC‐QTOF‐MS with data‐independent acquisition (DIA) in MS^E mode and retrospective analysis of authentic forensic blood samples Drug Testing and Analysis ·Carolina Noble, Petur Weihe Dalsgaard, Sys Stybe Johansen, Kristían Línnet	2017	62
12	Identification of Heteroaromatic and other Organic Compounds in Ground Water at Creosote‐Contaminated Sites in Denmark Groundwater Monitoring & Remediation ·Sys Stybe Johansen, Asger B. Hansen, Hans Mosbœk, Erik Arvin	1997	60
13	In Vivo Imaging of Cerebral Serotonin Transporter and Serotonin2A Receptor Binding in 3,4-Methylenedioxymethamphetamine (MDMA or “Ecstasy”) and Hallucinogen Users Archives of General Psychiatry ·David Erritzøe, Vibe G. Frøkjær, Klaus K. Holst, M.V. Christoffersen, Sys Stybe Johansen, Claus Svarer, Jacob Madsen, Peter Mondrup Rasmussen, Thomas Z. Ramsøy, Terry L. Jernigan, Gitte M. Knudsen	2011	59
14	Metabolic pathways of quinoline, indole and their methylated analogs by Desulfobacterium indolicum (DSM 3383) Applied Microbiology and Biotechnology ·Sys Stybe Johansen, Dorthe Licht, Erik Arvin, Hans Mosbæk, Asger B. Hansen	1997	57
15	Neutering increases the risk of obesity in male dogs but not in bitches — A cross-sectional study of dog- and owner-related risk factors for obesity in Danish companion dogs Preventive Veterinary Medicine ·Charlotte Reinhard Bjørnvad, SM Gloor, Sys Stybe Johansen, Peter Sandøe, Thomas Bøker Lund	2019	56
16	Simultaneous Determination of γ-Hydroxybutyrate (GHB) and its Analogues (GBL, 1.4-BD, GVL) in Whole Blood and Urine by Liquid Chromatography Coupled to Tandem Mass Spectrometry Journal of Analytical Toxicology ·Sys Stybe Johansen, Charlotte Norup Windberg	2011	45
17	Three Fatal Cases of PMA and PMMA Poisoning in Denmark Journal of Analytical Toxicology ·Sys Stybe Johansen, Arne Hansen, Irene Müller, Jytte Banner, M B Franzmann	2003	45
18	Determination of Olanzapine in Whole Blood Using Simple Protein Precipitation and Liquid Chromatography-Tandem Mass Spectrometry Journal of Analytical Toxicology ·Marie Katrine Klose Nielsen, Sys Stybe Johansen	2009	42
19	Targeted analysis of 116 drugs in hair by UHPLC‐MS/MS and its application to forensic cases Drug Testing and Analysis ·Xin Wang, Sys Stybe Johansen, Marie Katrine Klose Nielsen, Kristían Línnet	2016	39
20	Cognitive Coping Strategies of Children with Chronic Illness Journal of Developmental & Behavioral Pediatrics ·Ardis L. Olson, Sys Stybe Johansen, Laurie E. Powers, Janet Pope, Robert B. Klein	1993	39

About Sys Stybe Johansen

Sys Stybe Johansen is a scholar working on Toxicology, Clinical Psychology, Cellular and Molecular Neuroscience, Pathology and Forensic Medicine and Endocrinology, Diabetes and Metabolism, having authored 114 papers that have together received 2.9k indexed citations. Recurring topics across this work include Forensic Toxicology and Drug Analysis (66 papers), Psychedelics and Drug Studies (28 papers), Neurotransmitter Receptor Influence on Behavior (26 papers), Alcohol Consumption and Health Effects (17 papers), Hormonal and reproductive studies (16 papers), Poisoning and overdose treatments (15 papers), Metabolomics and Mass Spectrometry Studies (12 papers) and Analytical Chemistry and Chromatography (10 papers). The work is most often cited by research in Toxicology (1.3k citations), Clinical Psychology (945 citations), Cellular and Molecular Neuroscience (660 citations), Spectroscopy (447 citations) and Biological Psychiatry (67 citations). Sys Stybe Johansen has collaborated with scholars based in Denmark, United States and China. Frequent co-authors include Kristían Línnet, Marie Katrine Klose Nielsen, Petur Weihe Dalsgaard, Erik Arvin, Gitte M. Knudsen, Xin Wang, Asger B. Hansen, Brice Ozenne, Dea Siggaard Stenbæk and Patrick M. Fisher. Their work appears in journals such as Forensic Science International, Journal of Analytical Toxicology, Drug Testing and Analysis, Journal of Chromatography B and Journal of Pharmaceutical and Biomedical Analysis.

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