Sleep EEG and neuroendocrine studies have found several abnormalities similar to those seen in depression, such as decreased REM latency, non-suppression on the dexamethasone-suppression test and decreased growth hormone secretion with clonidine infusions . Only a part of the biological markers found in depression was found relevant in OCD, and their specificity and importance are still unclear.

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1. Brain Imaging Studies for OCD Brain Imaging Studies for OCD Positron emission tomography (PET) has displayed increased activity (i.e. metabolism and blood flow) in the frontal lobes, the basal ganglia [...]
2. Comorbdity Comorbdity for Generalized Anxiety Disorder GAD displays high psychiatric comorbidity, mainly with other anxiety and mood disorders. This fact complicates the diagnostic process, its treatment, as well as its prognosis. Yonkers [...]
3. Cognitive Models for Panic Disorder Cognitive Models for Panic Disorder Among cognitive models, there are Clark’s theory, Barlow’s false alarm theory and anxiety sensitivity theory. According to Clark’s theory, individuals who [...]
4. Anxiety Attack Symptom and Treatment Treatment for Anxiety Attack Symptom Since a lot of people suffer from stress as well as anxiety to some extent or the other [...]

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