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fear
The central nervous system's physiological and emotional response to a serious threat to one's well-being.
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anxiety
The CNS's physiological and emotional response to a vague sense of threat or danger.
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Generalized anxiety disorder
A disorder marked by persistent and excessive feelings of anxiety and worry about numerous events and activities.
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rational-emotive therapy
A cognitive therapy developed by Albert Ellis that helps clients identify and change the irrational assumptions and thinking that help cause their psychological disorder.
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family pedigree study
A research design in which investigators determine how many and which relatives of a person with a disorder have the same disorder.
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benzodiazepines
The most common goup of antianxiety drugs, which includes Valium and Xanax.
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GABA
The neurotransmitter gammaaminobutyric acid, whose low activity has been linked to generalized anxiety disorder.
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sedative-hypnotic drugs
Drugs that calm people at lower doses and help them to fall asleep at higher doses.
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relaxation training
A treatment procedure that teaches clients to relax at will so they can calm themselves in stressful situations.
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biofeedback
A treatment technique in which a client is given information about physiological reactions as they occur and learns to control the reactions voluntarily.
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electromyograph (EMG)
A device that provides feedback about the level of muscular tension in the body.
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phobia
A persistent and unreasonable fear of a particular object, activity, or situation.
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specific phobia
A severe and persistent fear of a specific object or situation (other than agoraphobia and social phobia).
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social phobia
A severe and persistent fear of social or performance sitautions in which embarrassment may occur.
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classical conditioning
A process of learning in which two events that repeatedly occur close together in time become tied together in a person's mind and so produce the same response.
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modeling
A process of learning in which a person observes and then imitates others. Also, a therapy approach based on the same principle.
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stimulus generalization
A phenomenon in which responses to one stimulus are also produced by similar stimuli.
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preparedness
A predisposition to develop certain fears.
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exposure treatments
Behavioral treatments in which persons are exposed to the objects or situations they dread.
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systematic desensitization
A behavioral treatment that uses relaxation training and a fear hierarchy to help clients with phobias react calmly to the objects or situations they dread.
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fear hierarchy
A list of objects or situations that frighten a person, starting with those that are slightly feared and ending with those that are feared greatly.
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flooding
A treatment for phobias in which clients are exposed repeatedly and intensively to a feared object and made to see that it is actually harmless.
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social skills training
A therapy approach that helps people learn or improve social skills and assertiveness through role playing and rehearsing of desirable behaviors.
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panic attacks
Periodic, short bouts of panic that occur suddenly, reach a peak within minutes, and gradually pass.
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panic disorder
An anxiety disorder marked by recurrent and unpredictable panic attacks.
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agoraphobia
An anxiety disorder in whcih a person is afraid to be in places or situations from which escape might be difficult (or embarrassing) or help unavailable if panic-like symptoms were to occur.
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norepinephrine
A neurotransmitter whose abnormal activity is linked to panic disorder and depression.
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locus ceruleus
A small area of the brain that seems to be active in the regulation of emotions. Many of its neurons use norepinephrine.
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amygdala
A small, almond-shaped structure in the brain that processes emotional information.
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biological challenge task
A procedure used to produce panic in participants or clients by having them exercise vigorously or perform some other potentially panic-inducing task in the presence of a researcher or therapist.
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anxiety sensitivity
A tendency to focus on one's bodily sensations, assess them illogically, and interpet them as harmful.
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obsession
A persistent thought, idea, impulse, or image that is experienced repeatedly, feels intrusive, and causes anxiety.
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compulsion
A repetitive and rigid behavior or mental act that a person feels driven to perform in order to prevent or reduce anxiety.
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obsessive-compulsive disorder
A disorder in which a person has recurrent and unwanted thoughts, a need to perform reptitive and rigid actions, or both.
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isolation
An ego defense mechanism in which people unconsciously isolate and disown undesirable and unwanted thoughts, experiencing them as forein intrusions.
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undoing
An ego defense mechanism whereby a person unconsciously cancels out an unacceptable desire or act by performing another act.
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reaction formation
An ego defense mechanism whereby a person suppresses an unacceptable desire by taking on a lifestyle that expresses the opposite desire.
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exposure and response prevention
A behavioral treatment for OCD that exposes a client to a anxiety-arousing thoughts or situations and then prevents the client from performing his or her compulsive acts.
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neutralizing
A person's attempt to eliminate unwanted thoughts by thinking or behaving in ways that put matters right internally, making up for the unacceptable thoughts.
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habituation training
A therapeutic technique in which a therapist tries to call forth a client's obsessive thoughts again and again, with the expectation that the thoughts will eventually lose their power to frighten and thus to cause anxiety.
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serotonin
A neurotransmitter whose abnormal activity is linked to depression, OCD, and eating disorders.
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neuromodulator
A neurotransmitter that helps modify or regulate the effect of other neurotransmitters.
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orbitofrontal cortex
A region of the brain in which impulses involving excretion, sexuality, violence, and other primitive activites normally arise.
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caudate nucleus
Structures in the brain, within the region known as the basal ganglia, that help convert sensory information into thoughts and actions.
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stress management program
An approach to treating generalized and other anxiety disorders that teaches clients techniques for reducing and controlling stress.
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