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Related Concept Videos

Panic Disorder01:27

Panic Disorder

Panic disorder is an anxiety disorder characterized by recurrent and sudden minutes-long episodes of intense fear, known as panic attacks. These attacks may feel like heart attacks and often happen without warning or a specific cause. They can include symptoms such as rapid heart rate, shortness of breath, chest pain, trembling, sweating, dizziness, and a sense of helplessness. During a panic attack, individuals may feel as though they are experiencing a heart attack or are in a...
Anxiety: Overview01:18

Anxiety: Overview

Anxiety is a common mental disorder featuring excessive worry, fear, and apprehension, significantly affecting daily life. People with anxiety disorders experience persistent and intense anxiety, interrupting their everyday functioning.
Individuals with anxiety often experience a range of physical and emotional symptoms, including sweating, trembling, tachycardia, and disturbances in sleep patterns. These symptoms vary in intensity and frequency but are generally disruptive and distressing.
Generalized Anxiety Disorder01:30

Generalized Anxiety Disorder

Generalized Anxiety Disorder (GAD) is a chronic condition characterized by excessive and uncontrollable worry that persists for at least six months, significantly interfering with daily functioning. Unlike situational anxiety, which arises in response to specific stressors, GAD often occurs without a clear cause. Individuals may experience disproportionate worry about work, health, or relationships. For instance, a person might continuously fear poor health despite normal medical evaluations or...
Hyperpnea and Hyperventilation01:25

Hyperpnea and Hyperventilation

Hyperventilation refers to a higher-than-normal rate and depth of breathing, often associated with anxiety attacks. This excessive breathing surpasses the body's need to expel CO2, leading to a condition known as hypocapnia - an unusually low level of carbon dioxide in the blood. Hypocapnia can constrict cerebral blood vessels, reducing blood flow to the brain, which may result in dizziness or fainting. Early signs include tingling and muscle spasms in the hands and face, caused by falling...
Post-traumatic Stress Disorder01:27

Post-traumatic Stress Disorder

Post-traumatic stress disorder (PTSD) is a psychiatric condition that arises following exposure to traumatic events such as natural disasters, forced displacement, or severe accidents. It significantly impairs individuals' ability to cope with daily activities and disrupts their emotional and psychological equilibrium.
Symptoms and Behavioral Manifestations
A spectrum of distressing symptoms characterizes PTSD. Recurrent flashbacks, where individuals involuntarily relive traumatic events, are a...
Anxiolytic Drugs: Overview01:26

Anxiolytic Drugs: Overview

Anxiolytic drugs are vital in managing anxiety disorders by effectively alleviating symptoms such as excessive fear, tachycardia, and tremors. There are several classes of anxiolytic medications, each with unique mechanisms of action and potential side effects.
Primary Types of Anxiolytic Drugs
1. Benzodiazepines:
Benzodiazepines bind to the GABA-A receptor in the brain, enhancing GABA's interaction. This action reduces neurotransmission, effectively blocking anxiety-associated limbic circuitry.

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Related Experiment Video

Updated: Jun 4, 2026

Using the Threat Probability Task to Assess Anxiety and Fear During Uncertain and Certain Threat
11:18

Using the Threat Probability Task to Assess Anxiety and Fear During Uncertain and Certain Threat

Published on: September 12, 2014

Panic attacks and panic disorders.

R Fontaine, P Beaudry

    Canadian Family Physician Medecin De Famille Canadien
    |February 1, 2011
    PubMed
    Summary
    This summary is machine-generated.

    Panic disorder diagnosis and treatment have advanced, with psychotherapy and medication proving more effective together. Spontaneous panic attacks, unlike phobic responses, are a key diagnostic feature.

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    Using the Threat Probability Task to Assess Anxiety and Fear During Uncertain and Certain Threat
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    Published on: September 12, 2014

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    Area of Science:

    • Psychiatry
    • Clinical Psychology
    • Neuroscience

    Background:

    • Panic disorder is characterized by recurrent, spontaneous panic attacks, differentiating it from phobic disorders.
    • Recent research explores the pathogenesis of panic disorder, including links to lactate infusion tests.
    • Advances in understanding panic attacks have significantly impacted diagnostic and therapeutic approaches.

    Purpose of the Study:

    • To review recent advancements in the diagnosis and treatment of panic attacks and panic disorders.
    • To highlight the key features distinguishing panic disorder from phobic disorders.
    • To discuss the efficacy of combined treatment modalities and specific pharmacological agents.

    Main Methods:

    • Review of recent studies on panic disorder pathogenesis, including lactate infusion tests.
    • Analysis of treatment efficacy comparing monotherapy (psychotherapy or pharmacotherapy) with combination therapy.
    • Description of specific pharmacological treatments, including imipramine and alprazolam.

    Main Results:

    • Combined psychotherapy (often supportive) with in vivo exposure and pharmacotherapy demonstrates superior efficacy over single treatments.
    • Lactate infusion tests are being investigated for their role in understanding panic disorder pathogenesis.
    • Imipramine and alprazolam are presented as viable pharmacotherapeutic options for panic disorder management.

    Conclusions:

    • Integrated treatment approaches combining psychotherapy and pharmacotherapy are most effective for panic disorder.
    • Understanding the spontaneous nature of panic attacks is crucial for diagnosis.
    • Pharmacological interventions like imipramine and alprazolam offer alternative or adjunctive treatment options.