The group has been active since 1999 in following fields: 

1. Heterogeneity of the Obsessive-Compulsive Disorder (OCD), we have worked on defining the number and structure of the content dimensions that characterise obsessive intrusive thoughts and clinical obsessions, analysing the cognitive and metacognitive features that differentiate these dimensions, as well as their implications for the diagnosis and treatment of the OCD. 
2. Cognitive models of the OCD. We are working on analysing the validity of different cognitive explanatory proposals for obsessive-compulsive disorder. 
3. Transdiagnosis.- We are working on finding out which variables or factors operate transdiagnostically in the various dimensions and/or subtypes of OCD and in other disorders of the emotional spectrum. Specifically, we focus on the comparative study of unpleasant mental intrusions (IMD) with obsessive, dysmorphic, hypochondriacal, eating, and relational contents, and their respective functional consequences (i.e., appraisals, emotional impact, interference, and neutralisation/control strategies).
4.  Transculturality.- We are working on the cross-cultural validity of the explanatory cognitive model of the OCD, and we are currently examining the above-mentioned IMDs in different cultural and religious contexts (in connection with other research groups in Canada, Italy, Argentina, Iran, Israel, and Turkey). 
5. O-C Spectrum.- We are working on examining the comparative validity (in psychopathological terms) of the various current approaches to O-C spectrum disorders, specifically, those derived from the DSM-5, those proposed by the WHO (ICD-11), and those proposed by cognitive psychological research (e.g., approaches to the dysphoria vs. euphoria and harm avoidance/compulsivity vs. impulsivity/NJREs continuum).   Specifically, we focus on the study of the OCD, body dysmorphic disorder, hypochondriasis and anorexia nervosa (psychopathology, diagnosis and treatment).
6. Treatment.- We have worked on testing a cognitive treatment programme (TCE), derived from cognitive theories of the OCD and specifically designed for this disorder. We have compared its efficacy with that of Exposure with Response Prevention; we have analysed the efficiency in the application of the treatment and compared the application in individual and group format; as well as according to the type of obsessions and compulsions. In recent years we are developing, exploring and testing virtual reality procedures that can support conventional treatments.
7. Family relationships.- We are examining whether dysfunctional beliefs, held by parents about unpleasant mental intrusions of obsessive, hypochondriacal, and dysmorphic content, have any impact/influence on those of their children. 
8. Stigma: We have sought to combat the stigma associated with mental illness in general, and O-C spectrum disorders in particular, by disseminating current knowledge and the possibilities for effective treatment and recovery from these disorders. 

We have worked on all these lines thanks, among other things, to the funding obtained in national (BSO2002-02330; SEJ2006/03893-PSIC; PSI2009-10957; PSI2010-18340; PSI2013-44733-R) and regional (GVAE2007-011; AE/07/022; SMI 6-2008; SMI 3/2008; PROMETEO 2013/066) competitive calls. We have published more than 50 articles in high-impact scientific journals, and made more than 100 presentations at national and international conferences with a selection committee.

Thirteen PhDs related to the objectives of the group and directed by the group leader have been defended, 5 of which obtained the extraordinary award in their respective calls.

Contributors

• Gema Del Valle Del Valle -Valencian Health Agency-Valencian Government. 
• Martha Giraldo O’Meara - Concordia University (Canada).
• José López Santiago - Health Service of Castilla-La Mancha (Toledo).
• Mª Angeles Ruiz Fernández - Spanish National University of Distance Learning (Madrid).

Other human health activities