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L 'anxiety an emotional complex, multidimensional phenomenon that denotes a subjective sense of discomfort / anxiety, which is likened to a sense of imminent danger or a negative event that falls on the subject, concerns, thoughts danger, negative expectations, focus of attention and hypervigilance, muscle tension, hyperventilation, palpitations or tachycardia, need to urinate frequently, dry mouth, sweating or cold hands etc.). shaking, jamming in speech, hyper-reactivity and irritability, interference with concentration and some activities and so on.
ANXIETY DISORDERS . A panic attack is a discrete period during which there is the sudden onset of intense apprehension, fear or terror, often associated with a feeling of impending catastrophe. During these attacks there are symptoms such as breathlessness, palpitations, chest pain or discomfort, feeling of choking or smothering, and fear of "going crazy" or losing control.

L ' agoraphobia is anxiety ol'evitamento to places or situations from which it would be difficult (or embarrassing) or in which help may not be available in case of a Panic Attack or panic-like symptoms. The
agoraphobia without panic disorder is characterized by recurrent unexpected Panic Attacks, about which there is a persistent worry. The
Panic Disorder with Agoraphobia is characterized by recurrent and unexpected panic attacks from agoraphobia.
L ' agoraphobia without history of panic disorder is characterized by the presence of agoraphobia and panic-like symptoms without a history of unexpected Panic Attacks. The
phobia Social is characterized by clinically significant anxiety provoked by exposure to a feared object or situation that often leads to avoidance of conduct. The
obsessive-compulsive disorder is characterized by obsessions (which cause marked anxiety or distress) and / or compulsions (which serve to neutralize anxiety). The
post-traumatic stress disorder is characterized by revive an extremely traumatic event accompanied by symptoms of increase of arousal and avoidance of stimuli associated with trauma. The
acute stress disorder is characterized by symptoms similar to Post-Traumatic Stress Disorder that occur immediately following an extremely traumatic event. The
generalized anxiety disorder is characterized by at least 6 months of persistent and excessive anxiety and worry.
cognitive models of anxiety disorders are based on the assumption that anxiety is linked to distortions and biases in the development of informaziorni related to a certain repertoire of situations and concepts of danger and personal vulnerability that sink their remote origins in the experience of the subject and are gradually "reworked" with significant experience (direct or indirect).
distorting processes of information processing may give rise to specific cognitive events as: advances catastrophic, negative automatic thoughts, self-affirmations of ineptitude, illness, madness, memories and mental images to content hypochondriac, expectations of failure and failure of coping in their activities, internal monologues of self-destructive character.

frequent examples of distortions that have THE DEVELOPMENT related cognitive anxiety are:
a) CATASTROFIZZAZIONE , for which the person stops to examine negative outcomes of an improbable situation, overestimating the likelihood of this outcome amplifying and unrealistically negative consequences;
b) the SELECTIVE ABSTRACTION and loss of perspective, for which the patient is hypersensitive to any aspect of potentially harmful situations, but is not sensitive to the facilitation also present and loses the sense of the situation;
c) dichotomous thinking, that is the tendency to interpret events in dichotomous terms with no room for uncertainty or I'ambiguità (unless a situation is not unambiguous. sure, he assesses the insecure).

state anxiety : transitory emotional state of an individual in a given time and in a given situation, of the human condition characterized by subjective feelings perceived on a conscious level of tension and apprehension, and by increased autonomic nervous system activity. May vary and fluctuate over time.
trait anxiety : relatively stable personality variable that can characterize and differentiate them from other individuals, a tendency to respond with elevations of the intensity of state anxiety in situations perceived as threatening.