![Eiko Fried on Twitter: Eiko Fried on Twitter:](https://pbs.twimg.com/media/D5eHAMPXoAEE8MF.jpg:large)
Eiko Fried on Twitter: "New PNAS paper claims they identified "effective diagnostic biomarker" for depression after comparing—wait for it—depressed vs controls. One more time: a "marker for X" is defined as being *
Eiko Fried on Twitter: "1/ Why depression is not a useful or reasonable phenotype for research in clinical psychology, psychiatry, or medicine: a summary of evidence in 18 tweets. Sx = symptoms,
![Eiko FRIED | Assistant Professor | PhD | Leiden University, Leiden | LEI | Department of Clinical Psychology | Research profile Eiko FRIED | Assistant Professor | PhD | Leiden University, Leiden | LEI | Department of Clinical Psychology | Research profile](https://i1.rgstatic.net/ii/profile.image/438839903821825-1481638994847_Q512/Eiko-Fried.jpg)
Eiko FRIED | Assistant Professor | PhD | Leiden University, Leiden | LEI | Department of Clinical Psychology | Research profile
![Network structure of depression symptomology in participants with and without depressive disorder: the population-based Health 2000–2011 study | SpringerLink Network structure of depression symptomology in participants with and without depressive disorder: the population-based Health 2000–2011 study | SpringerLink](https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs00127-020-01843-7/MediaObjects/127_2020_1843_Fig5_HTML.png)
Network structure of depression symptomology in participants with and without depressive disorder: the population-based Health 2000–2011 study | SpringerLink
Eiko Fried on Twitter: "1/ Why depression is not a useful or reasonable phenotype for research in clinical psychology, psychiatry, or medicine: a summary of evidence in 18 tweets. Sx = symptoms,
![Eiko Fried Eiko Fried](https://i.ytimg.com/vi/jVVFtdtzFeU/hq720.jpg?sqp=-oaymwE7CK4FEIIDSFryq4qpAy0IARUAAAAAGAElAADIQj0AgKJD8AEB-AH-BYAC4AOKAgwIABABGFwgZShZMA8=&rs=AOn4CLC40aW7DCJmsuQjbsrL_NSUObJN8w)
Eiko Fried "Mental Health: Studying Systems Instead of Syndromes" Keynote Transdiagnostic 2021 - YouTube
![Problematic assumptions have slowed down depression research: why symptoms, not syndromes are the way forward – topic of research paper in Psychology. Download scholarly article PDF and read for free on CyberLeninka Problematic assumptions have slowed down depression research: why symptoms, not syndromes are the way forward – topic of research paper in Psychology. Download scholarly article PDF and read for free on CyberLeninka](https://cyberleninka.org/viewer_images/183930/f/1.png)
Problematic assumptions have slowed down depression research: why symptoms, not syndromes are the way forward – topic of research paper in Psychology. Download scholarly article PDF and read for free on CyberLeninka
![Eiko Fried Eiko Fried](https://i.ytimg.com/vi/3KAK1wDEB5Q/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLAfGumdD3b8gTsbOOlAe6pbbDk1Tg)
Eiko Fried "Mental Health: Studying Systems Instead of Syndromes" Keynote Transdiagnostic 2021 - YouTube
![PDF) Heterogeneity in major depression and its melancholic and atypical specifiers: a secondary analysis of STAR*D PDF) Heterogeneity in major depression and its melancholic and atypical specifiers: a secondary analysis of STAR*D](https://i1.rgstatic.net/publication/354643191_Heterogeneity_in_major_depression_and_its_melancholic_and_atypical_specifiers_a_secondary_analysis_of_STARD/links/614417baf4a9f7651162e615/largepreview.png)