Obsessive-compulsive disorder (OCD) has two main parts: obsessions and compulsions. Obsessions are unwelcome thoughts, images, urges, worries or doubts that repeatedly appear in your mind. They can make you feel very anxious (although some people describe it as 'mental discomfort' rather than anxiety).
Studies show that OCD patients have excess activity in frontal regions of the brain, including the orbitofrontal cortex (OFC) and anterior cingulate cortex (ACC), which could explain their intrusive thoughts and high levels of anxiety, respectively.
Imaging, surgical, and lesion studies suggest that the prefrontal cortex (orbitofrontal and anterior cingulate cortexes), basal ganglia, and thalamus are involved in the pathogenesis of obsessive-compulsive disorder (OCD).
The thoughts feel inescapable. They're in your mind and body, but you feel like you can't control them. You know they're not rational, but you feel compelled to let them direct your behavior. They demand that you do something to make them go away — often a compulsive behavior.
Experts aren't sure of the exact cause of OCD. Genetics, brain abnormalities, and the environment are thought to play a role. It often starts in the teens or early adulthood. But, it can also start in childhood.
Trauma, stress, and abuse all can be a cause of OCD getting worse. OCD causes intense urges to complete a task or perform a ritual. For those who have the condition, obsessions and compulsions can begin to rule their life.
While OCD was once classified as an anxiety disorder — and patients are often anxious about their behavior — it's now seen as a separate mental illness.
The onset of OCD is not limited to the original meaning of trauma; rather, traumatic experiences such as unexpected exposure to contaminants or various stressful life events often cause the onset of OCD.
Individuals with OCD often have certain chemical imbalances present in the brain. Changes in the neurochemicals serotonin, dopamine, and glutamate are normally present in OCD cases.
At its most severe, however, OCD can impact someone's ability to work, go to school, run errands, or even care for themselves. People with severe OCD have obsessions with cleanliness and germs — washing their hands, taking showers, or cleaning their homes for hours a day.
Obsessive-compulsive disorder (OCD) can sometimes be difficult to treat with medication and psychotherapy. For these patients, we may employ deep brain stimulation (DBS), an advanced surgical treatment that uses electrical impulses.
OCD was one of the first psychiatric disorders in brain scans showed evidence of abnormal brain activity in specific regions.
Obsessive compulsive disorder, or OCD, is an anxiety disorder which, like many anxiety disorders, is marked by low levels of serotonin. Serotonin, a type of neurotransmitter, has a variety of functions that make a deficiency a serious and anxiety producing issue.
Once thought to be psychodynamic in origin, OCD is now generally recognized as having a neurobiological cause. Although the exact pathophysiology of OCD in its pure form remains unknown, there are numerous reports of obsessive-compulsive symptoms arising in the setting of known neurological disease.
OCD and irrational thoughts
People with OCD and other mental illnesses are often prone to cognitive distortions. Cognitive distortions are habitual thinking patterns that are incorrect or biased — often negatively. As a result, some of your thoughts might be irrational.
OCD can have a profound effect on a person's life
Compulsions and obsessions may take up many hours of a person's day and can interfere with family and social relationships. They can also have a negative effect on education and employment. As OCD becomes more severe, 'avoidance' may become an increasing problem.
People with OCD tend to have distressing thoughts that won't go away. They might act on their compulsions for temporary relief, even when they don't really want to. OCD can feel like a roadblock, and asking for help can be difficult.
These infections may include: strep, influenza, mycoplasma pneumonia, Lyme disease, herpes virus, mononucleosis and Coxsackie virus. This autoimmune response targeting the basal ganglia can cause brain inflammation and the onset of neuropsychiatric symptoms, including OCD-like behaviors.
Results: Emotional abuse, sexual abuse and neglect were highly prevalent in our sample. Additionally, the severity of experienced childhood maltreatment was associated with higher OCD symptom severity, with the strongest association found for emotional abuse.