Category: A

  • Atypical antidepressants

    A group of newer antidepressant medications unrelated to selective serotonin reuptake inhibitors (SSRIs), tricyclic antidepressants, or monoamine oxidase inhibitors (MAOIs). Examples of atypical antidepressants include serotonin-norepinephrine reuptake inhibitors (SNRIs; e.g., (duloxetine), noradrenergic and specific serotonergic antidepressants (NaSSAs); e.g., mirtazapine), and serotonin antagonist and reuptake inhibitors (SARIs; e.g., trazodone). These agents are used to treat depression,…

  • Attention

    The ability to sustain focus on one activity. A disturbance in attention may appear as having difficulty in finishing tasks that have been started, being easily distracted, or having difficulty in concentrating. All the processes by which people perceive on a selective basis. The directing of consciousness to a person, thing, perception, or thought.  

  • Attachment theory

    A type of theory that is meant to describe and explain people’s enduring patterns of relationships from birth to death. In attachment theory, attachment is a bond between the child and the caregiver that guarantees safety and survival of the child. Variations of or failures in early attachment are thought to predispose To, or be…

  • Attachment learning

    The theory that the presence of someone to whom one is emotionally attached has a special effect on how one learns, especially in infancy.  

  • Atomoxetine

    A nonstimulant selective norepinephrine reuptake inhibitor medication indicated for the treatment of attention-deficit/hyperactivity disorder (ADHD). Marketed under the brand name strattera.  

  • Ativan

    Brand name for the benzodiazepine anxiolytic drug lorazepam. A commercial preparation of lorazepam.  

  • Athetosis

    A muscular disorder characterized by irregular, twisting, slow movements of the toes and fingers. It results from a lesion in the extrapyramidal pathways. A recurring, involuntary, tentacle-like movement of the hands and feet, usually associated with brain pathology. Repeated slow movements of the limbs, caused by a brain disorder such as cerebral palsy. Athetosis is…

  • Ataraxia

    A lucid state characterized by freedom from worry. Mental calm and tranquility. A state of relative indifference to stressful situations, induced by antipsychotic medications. The state of being calm and not worrying. A state of calmness and freedom from anxiety, especially the slate produced by tranquilizing drugs. A state of complete mental calm and tranquility,…

  • Atarax

    An antihistamine medication sometimes used to treat mild anxiety or to promote sleep, especially in children. A brand name for hydroxyzine.  

  • Ataque de nervios

    Ataque de nervios

    A culture-specific syndrome characterized by screaming uncontrollably, crying, trembling, and verbal or physical aggression. Dissociative experiences, seizure-like or fainting episodes, and suicidal gestures are also prominent in some ataques. It is principally reported among latinos from the caribbean but is also recognized among many latin american and latin mediterranean groups. Ataque de nervios is a…