In the central nervous system (CNS), the major mediators of the symptoms of anxiety disorders appear to be norepinephrine, serotonin, dopamine, and gamma-aminobutyric acid (GABA). Other neurotransmitters and peptides, such as corticotropin-releasing factor, may be involved. Peripherally, the autonomic nervous system, especially the sympathetic nervous system, mediates many of the symptoms. Increased flow in the right parahippocampal region and reduced serotonin type 1A receptor binding in the anterior and posterior cingulate and raphe of patients are the diagnostic factors for prevalence of anxiety disorder.
Characterized by a suite of symptoms that persist for at least three days and up to one month after a traumatic experience (same diagnostic criteria for "trauma" as listed above). The specific symptoms of the disorder vary across individuals, but a common feature is intense anxiety in response to re-experiencing symptoms (e.g., recurrent intrusive recollections of traumatic event) of the trauma.
Panic disorder is characterized by repeated, unexpected panic attacks, as well as fear of experiencing another episode. A panic disorder may also be accompanied by agoraphobia, which is the fear of being in places where escape or help would be difficult in the event of a panic attack. If you have agoraphobia, you are likely to avoid public places such as shopping malls, or confined spaces such as an airplane.
Once the diagnosis of panic attack is made, however, the person may be surprised that no medicines are prescribed. Before medications are started, the person requires further evaluation by a mental-health professional to check for the presence of other mental-health disorders. These may include anxiety disorders, depression, or panic disorder (a different diagnosis than panic attack).
Benzodiazepines are sedatives indicated for anxiety, epilepsy, alcohol withdrawal and muscle spasms. Benzodiazepines demonstrate short-term effectiveness in the treatment of Generalized Anxiety Disorder and can help with sleep disturbances. A doctor may prescribe these drugs for a limited period of time to relieve acute symptoms of anxiety. However, long-term use of these medications is discouraged because they have a strong sedative effect and can be habit forming. In addition, taking benzodiazepines while also engaging in psychotherapy such as PE can reduce the effectiveness of the exposuere therapy,. Some well-known brand names are Librium, Xanax, Valium, and Ativan.
Selective mutism: A somewhat rare disorder associated with anxiety is selective mutism. Selective mutism occurs when people fail to speak in specific social situations despite having normal language skills. Selective mutism usually occurs before the age of 5 and is often associated with extreme shyness, fear of social embarrassment, compulsive traits, withdrawal, clinging behavior, and temper tantrums. People diagnosed with selective mutism are often also diagnosed with other anxiety disorders.