![]() Serotonin is a chemical the brain uses to transmit information from one brain cell to another. Studies have also shown people with OCD have an imbalance of serotonin in their brain. In some cases the condition may run in families, and may be linked to certain inherited genes that affect the brain's development.īrain imaging studies have shown the brains of some people with OCD can be different from the brains of people who do not have the condition.įor example, there may be increased activity in certain areas of the brain, particularly those that deal with strong emotions and the responses to them. It's not clear exactly what causes OCD, although a number of factors have been suggested. Some people with OCD may spend an hour or so a day engaged in obsessive-compulsive thinking and behaviour, but for others the condition can completely take over their life. OCD symptoms can range from mild to severe. doi:10.1891/0889-8391.33.1.Obsessive compulsive disorder (OCD) is a mental health condition where a person has obsessive thoughts and compulsive activity.Īn obsession is an unwanted and unpleasant thought, image or urge that repeatedly enters a person's mind, causing feelings of anxiety, disgust or unease.Ī compulsion is a repetitive behaviour or mental act that someone feels they need to carry out to try to temporarily relieve the unpleasant feelings brought on by the obsessive thought.įor example, someone with a fear of their house being burgled may feel they need to check all the windows and doors are locked several times before they can leave the house. Exposure and response prevention for obsessive-compulsive disorder: a case study of a veteran with violent intrusive thoughts. Siffert V, Riahi C, Stanley MA, Fletcher TL. ![]() Exposure and response prevention for obsessive-compulsive disorder: A review and new directions. The connection between obsessive compulsive disorder and traumatic brain injury in paediatric and young patients, therapeutic guidelines and new therapeutic approaches. Gender differences in eating disorder-related intrusive thoughts. ![]() Springer International Publishing 2022:93-112. In: Percudani M, Bramante A, Brenna V, Pariante C, eds. Unwanted, intrusive thoughts of infant-related harm. (2018).įairbrother N, Martin R, Challacombe F. Anxiety and Depression Association of America. Traumatic brain injury: Some people experience intrusive thoughts following a traumatic brain injury due to neurological changes resulting from brain damage.Eating disorders: Research shows that people with eating disorders might experience intrusive thoughts about their body, appearance, or eating behaviors.This can be difficult to disclose due to concerns that providers will think that the parent intends to act on these thoughts. Postpartum depression: Some parents with postpartum depression experience intrusive thoughts that they will harm their baby.Anxiety disorders: People with anxiety disorders may have intrusive thoughts related to specific fears or their anxiety triggers.In addition to intrusive memories, people with PTSD might experience worries that another traumatic event will happen or negative self-talk related to the trauma as an intrusive thought. Post-traumatic stress disorder: One symptom of PTSD is flashbacks, or unwanted memories of the trauma that cause distress. ![]() ![]() People with OCD experience distressing thoughts that they struggle to let go of, and they might engage in behaviors to compensate or reduce anxiety brought on by the thoughts. Obsessive-compulsive disorder: Intrusive thoughts are most commonly associated with OCD, though they are certainly not limited to this diagnosis. ![]()
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