scholarly journals Cardiovascular Autonomic Function Tests in Patients of Obsessive–Compulsive Disorder: A Cross-Sectional Study

2021 ◽  
pp. 025371762110428
Author(s):  
Sandhya M. ◽  
Sunita Mittal ◽  
Rajesh Kathrotia ◽  
Vikram Singh Rawat ◽  
Yogesh Singh ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Standard Deviation ◽  
Obsessive Compulsive Disorder ◽  
Autonomic Function ◽  
Healthy Controls ◽  
Obsessive Compulsive ◽  
Rr Intervals ◽  
Compulsive Disorder ◽  
Increased Risk ◽  
Parasympathetic Tone

Background: Patients with psychiatric disorders are at an increased risk of developing cardiovascular disease, reducing life expectancy. Autonomic dysfunction has been linked to this increased risk; many studies have found reductions in heart rate variability (HRV). Only a few studies have systematically explored the relationship between obsessive–compulsive disorder (OCD) and autonomic function, and they have found contradicting results. The present study is intended to explore comprehensive autonomic functions in OCD patients and compare them with healthy controls. Methods: A total of 18 OCD patients meeting Diagnostic and Statistical Manual of Mental Disorders - 5 (DSM-5) criteria were enrolled to undergo comprehensive autonomic function testing, and the results were compared with 25 age- and sex-matched healthy controls. Results: Time-domain parameters of HRV such as standard deviation of the RR intervals, coefficient of variance of RR intervals, standard deviation of differences between adjacent RR intervals, root square of the mean of the sum of the squares of differences between adjacent RR intervals, and percentage of number of RR interval differences ≥ 50 ms were significantly lower in OCD patients, indicating lesser parasympathetic tone. Frequency-domain parameters such as total power and very low frequency were significantly lower in OCD patients, indicating a significant decrease in autonomic tone. Nonlinear parameters such as dispersion of points perpendicular to the line of identity and dispersion of points along the line of identity were significantly lower in OCD patients, indicating altered vagal and sympathetic tone. In autonomic reactivity tests, the fall in systolic blood pressure during the lying to standing test and change in diastolic blood pressure during the cold pressor test were significantly altered in OCD patients, indicating abnormal sympathetic reactivity. There was no significant correlation between autonomic parameters and the severity of OCD. Conclusion: OCD is characterized by a decreased parasympathetic tone and abnormal sympathetic reactivity compared to normal controls.

T102C and –1438 G/A polymorphisms of the 5-HT2A receptor gene in Turkish patients with obsessive–compulsive disorder

2003 ◽  
Vol 18 (5) ◽  
pp. 249-254 ◽  
Author(s):  
Şenel Tot ◽  
M. Emin Erdal ◽  
Kemal Yazıcı ◽  
Aylin Ertekin Yazıcı ◽  
Özmen Metin
Keyword(s):  
Obsessive Compulsive Disorder ◽  
Receptor Gene ◽  
Clinical Severity ◽  
Genotype Distribution ◽  
Healthy Controls ◽  
Obsessive Compulsive ◽  
Compulsive Disorder ◽  
Increased Risk ◽  
T102c Polymorphism ◽  
Turkish Patients

AbstractObjectiveThis study aimed to investigate the possible association between T102C and –1438 G/A polymorphism in the 5-HT2A receptor gene and susceptibility to and clinical features of obsessive–compulsive disorder (OCD).MethodFifty-eight patients with OCD and 83 healthy controls were included in the study. All patients were interviewed and rated by Yale-Brown Obsessive–Compulsive Scale. T102C and –1438 G/A polymorphisms of 5-HT2A receptor gene were determined by PCR technique in DNAs of peripheral leucocytes.ResultsOCD patients and healthy controls did not show significant differences in genotype distribution for both polymorphisms investigated. We found that frequencies of the TT genotype for T102C polymorphism and the AA genotype for –1438 G/A polymorphism were significantly higher in patients with severe OCD compared to those with moderate or moderate–severe OCD.ConclusionThe –1438 G/A and T102C polymorphisms of the 5-HT2A receptor gene are not associated with an increased risk of OCD. Our data suggest that the TT genotype of T102C and the AA genotype of –1438 G/A polymorphism might be a factor in clinical severity of OCD.

The inner world of overactive monitoring: neural markers of interoception in obsessive–compulsive disorder

2017 ◽  
Vol 47 (11) ◽  
pp. 1957-1970 ◽  
Author(s):  
A. Yoris ◽  
A. M. García ◽  
L. Traiber ◽  
H. Santamaría-García ◽  
M. Martorell ◽  
...  
Keyword(s):  
Panic Disorder ◽  
Obsessive Compulsive Disorder ◽  
Evoked Potential ◽  
Cognitive Profile ◽  
Healthy Controls ◽  
Obsessive Compulsive ◽  
Compulsive Disorder ◽  
Inner World ◽  
External Stimuli ◽  
Internal Body

BackgroundObsessive–compulsive disorder (OCD) patients typically overmonitor their own behavior, as shown by symptoms of excessive doubt and checking. Although this is well established for the patients’ relationship with external stimuli in the environment, no study has explored their monitoring of internal body signals, a process known to be affected in anxiety-related syndromes. Here, we explored this issue through a cardiac interoception task that measures sensing of heartbeats. Our aim was to explore key behavioral and electrophysiological aspects of internal-cue monitoring in OCD, while examining their potential distinctiveness in this condition.MethodWe administered a heartbeat detection (HBD) task (with related interoceptive confidence and awareness measures) to three matched groups (OCD patients, panic disorder patients, healthy controls) and recorded ongoing modulations of two task-relevant electrophysiological markers: the heart evoked potential (HEP) and the motor potential (MP).ResultsBehaviorally, OCD patients outperformed controls and panic patients in the HBD task. Moreover, they exhibited greater amplitude modulation of both the HEP and the MP during cardiac interoception. However, they evinced poorer confidence and awareness of their interoceptive skills.ConclusionsConvergent behavioral and electrophysiological data showed that overactive monitoring in OCD extends to the sensing of internal bodily signals. Moreover, this pattern discriminated OCD from panic patients, suggesting a condition-distinctive alteration. Our results highlight the potential of exploring interoceptive processes in the OCD spectrum to better characterize the population's cognitive profile. Finally, these findings may lay new bridges between somatic theories of emotion and cognitive models of OCD.

EEG-source estimates and vigilance regulation in obsessive compulsive disorder in comparison to healthy controls

2011 ◽  
Vol 26 (S2) ◽  
pp. 977-977 ◽  
Author(s):  
H. Olbrich ◽  
S. Olbrich ◽  
I. Jahn ◽  
U. Hegerl ◽  
K. Stengler
Keyword(s):  
Obsessive Compulsive Disorder ◽  
Sleep Disturbances ◽  
Imaging Techniques ◽  
Sleep Onset ◽  
Biological Marker ◽  
Multiple Comparison ◽  
Healthy Controls ◽  
Obsessive Compulsive ◽  
Compulsive Disorder ◽  
Eeg Power

Neurophysiological hyperactivation of cortical and subcortical brain areas has been reported in obsessive-compulsive disorder (OCD) using functional imaging techniques and electroencephalography (EEG). Also sleep disturbances and delayed sleep phases have been associated with OCD symptomatology. However, vigilance regulation in OCD during the transition phase from wakefulness to sleep onset remains unclear. Therefore the aim of this study was to analyze EEG-source estimates and EEG vigilance regulation in OCD patients in comparison to healthy controls.A 15 minute resting EEG was recorded in 30 unmedicated OCD patients and 30 healthy, age and gender matched controls. EEG power source estimates of the whole time series were computed by exact Low Resolution Brain Electromagnetic Tomography (eLORETA). Each consecutive one second EEG-segment was classified into one out of seven EEG-vigilance stages (0, A1, A2, A3, B1, B2/3, C) using Vigilance Algorithm Leipzig (VIGALL). The eLORETA analysis (log of F-ratios, p < 0.05, corrected for multiple comparison) revealed significantly increased delta power in the right superior frontal gyrus for OCD patients in comparison to healthy controls. Vigilance analysis yielded significantly increased amounts of high vigilance stage A2 (Mann-Whitney test, p < 0.001, corrected for multiple comparison) for OCD patients.This study repeated findings of altered EEG-power in frontal areas in OCD patients. Alterations of EEG-vigilance regulation were found with increased amounts of high vigilance stage A2. This is in line with a hypothesis of cortical hyperactivation in OCD. The value of EEG-vigilance as a possible biological marker for e.g. treatment response should be focus of further studies.

scholarly journals Executive functioning in Body Dysmorphic Disorder and Obsessive-Compulsive Disorder

2021 ◽  
Author(s):  
Long Long Chen ◽  
Oskar Flygare ◽  
John Wallert ◽  
Jesper Enander ◽  
Volen Ivanov ◽  
...  
Keyword(s):  
Obsessive Compulsive Disorder ◽  
Test Performance ◽  
Symptom Severity ◽  
Body Dysmorphic Disorder ◽  
Spatial Working Memory ◽  
Clinical Severity ◽  
Stop Signal Task ◽  
Healthy Controls ◽  
Obsessive Compulsive ◽  
Compulsive Disorder

Objective: To assess executive functions in patients with Body Dysmorphic Disorder (BDD) and Obsessive-Compulsive Disorder (OCD) compared with healthy controls. Methods: Adults diagnosed with BDD (n=26) or OCD (n=29) according to DSM-5, and healthy controls (n=28) underwent validated and computerized neuropsychological tests; spatial working memory (SWM), Intra- extra dimensional set shifting (IED) and Stop signal task (SST), from the Cambridge Neuropsychological Test Automated Battery (CANTAB). Test performance was compared between groups, and correlated to standardized symptom severity of BDD and OCD. Significance level was set to p<0.05. Results: There were no statistically significant between-group differences on key outcome measures in SWM, IED, or SST. There was a weak positive correlation between symptom severity and test errors on SWM and IED in both OCD and BDD groups; increased clinical severity were associated with more errors in these tests. Further, there was a negative correlation between symptom severity and SST in the BDD group. Conclusions: Patients with BDD or OCD did not differ from healthy control subjects in terms of test performance, however there were several statistically significant correlations between symptom severity and performance in those with BDD or OCD. More studies on EF in BDD and OCD are required to elucidate if there are differences in EF between these two disorders.

Correlational research on facial and clinical characteristics of adolescents with obsessive-compulsive disorder

2021 ◽  
Author(s):  
Yanrong Wang ◽  
Shaohua Chang ◽  
Xiaomin Ma ◽  
Jiying Li ◽  
Ruixia Zhang ◽  
...  
Keyword(s):  
Obsessive Compulsive Disorder ◽  
Clinical Characteristics ◽  
Healthy Controls ◽  
Obsessive Compulsive ◽  
Lower Lip ◽  
Compulsive Disorder ◽  
Correlational Research ◽  
Nasolabial Angle ◽  
The Difference ◽  
The Relationship

Abstract We examined the relationship between facial morphological features and clinical characteristics of adolescents with obsessive-compulsive disorder (OCD). The enrolled study sample comprised 40 adolescents diagnosed with OCD using the Obsessive Compulsive Inventory Child Version (OCI-CV) and 38 healthy controls (HCs). Facial photos, 21 facial diameters, and nine facial angles were collected using image software. In males, lower lip red height was significantly lower in OCD patients than in HCs (P < 0.05); no significant differences were observed in other facial indicators (all P > 0.05). In females, the nasolabial angle was smaller in OCD patients than in HCs (P < 0.05); no significant differences were observed in other facial indicators (all P > 0.05). The difference in lower lip red height between the OCD group and HC group was positively correlated with mental neutralization symptoms (r = 0.401, P < 0.05). Our findings highlight the relationship between facial and clinical characteristics in OCD patients.

scholarly journals The effects of acute serotonin challenge on executive planning in patients with obsessive–compulsive disorder (OCD), their first-degree relatives, and healthy controls

2020 ◽  
Vol 237 (10) ◽  
pp. 3117-3123
Author(s):  
Christine Lochner ◽  
Samuel R. Chamberlain ◽  
Martin Kidd ◽  
Lian Taljaard ◽  
Naomi A. Fineberg ◽  
...  
Keyword(s):  
Obsessive Compulsive Disorder ◽  
Healthy Controls ◽  
Obsessive Compulsive ◽  
Compulsive Disorder ◽  
First Degree Relatives

scholarly journals Anger and aggressiveness in obsessive–compulsive disorder (OCD) and the mediating role of responsibility, non-acceptance of emotions, and social desirability

2020 ◽  
Author(s):  
Barbara Cludius ◽  
Anna K. Mannsfeld ◽  
Alexander F. Schmidt ◽  
Lena Jelinek
Keyword(s):  
Emotion Regulation ◽  
Obsessive Compulsive Disorder ◽  
Social Desirability ◽  
Self Concept ◽  
Trait Anger ◽  
Healthy Controls ◽  
Obsessive Compulsive ◽  
Anger Suppression ◽  
Compulsive Disorder ◽  
The Relationship

Abstract According to psychodynamic and cognitive models of obsessive–compulsive disorder (OCD), anger and aggression play an important role in the development and maintenance of the disorder. (Sub-) clinical samples with OCD have reported higher anger and anger suppression. Patients with checking-related symptoms of OCD showed a less aggressive self-concept as assessed by an Implicit Association Test (IAT). This study assessed anger and aggressiveness self-concepts in OCD as well as possible mediators of the link between OCD and aggressiveness. A total of 48 patients with OCD and 45 healthy controls were included. Measures included the State-Trait Anger Expression Inventory-II and an aggressiveness self-concept IAT (Agg-IAT). An inflated sense of responsibility, non-acceptance of emotions, and social desirability were tested as mediators. As expected, patients with OCD reported higher trait anger and anger suppression compared to healthy controls. Contrary to hypotheses, the aggressiveness self-concept (Agg-IAT) did not differ between groups. The inflated sense of responsibility mediated the relationship between group and anger suppression. Non-acceptance of negative emotions mediated the relationship between group and trait anger, as well as anger suppression. However, comorbidities and medication may account for some effect in anger suppression. Elevated trait anger and anger suppression in OCD patients could be explained by dysfunctional beliefs or maladaptive emotion regulation strategies. Emotion regulation therapy might help to enhance awareness and acceptance of emotions and possibly improve treatment outcomes.

scholarly journals Differences between individuals with schizophrenia or obsessive-compulsive disorder and healthy controls in social cognition and mindfulness skills: A controlled study

PLoS ONE ◽  
2019 ◽  
Vol 14 (12) ◽  
pp. e0225608
Author(s):  
Yolanda López-del-Hoyo ◽  
Manuel González Panzano ◽  
Guillermo Lahera ◽  
Paola Herrera-Mercadal ◽  
Mayte Navarro-Gil ◽  
...  
Keyword(s):  
Social Cognition ◽  
Obsessive Compulsive Disorder ◽  
Controlled Study ◽  
Healthy Controls ◽  
Obsessive Compulsive ◽  
Compulsive Disorder ◽  
Mindfulness Skills
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