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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...
Social Anxiety Disorder01:28

Social Anxiety Disorder

Social anxiety disorder, also known as social phobia, is characterized by an intense fear of social situations where one might face humiliation, rejection, embarrassment, or negative evaluation. This disorder leads individuals to avoid activities like casual conversations, public speaking, or seemingly simple tasks such as eating, signing documents, or swimming, in public settings. Its impact extends beyond discomfort, often significantly interfering with daily functioning and quality of life.
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.
Preparedness and Phobias01:09

Preparedness and Phobias

Human fear responses to certain stimuli, such as darkness, heights, deep water, and blood, can often arise despite the absence of direct negative experiences. This phenomenon is rooted in evolutionary psychology, which posits that humans have developed a predisposition to fear stimuli that historically posed significant survival threats. This predisposition, known as preparedness, suggests that early humans who developed a fear of potentially dangerous entities, such as venomous snakes and...

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Related Experiment Video

Updated: Jun 16, 2026

Habituation and Prepulse Inhibition of Acoustic Startle in Rodents
08:38

Habituation and Prepulse Inhibition of Acoustic Startle in Rodents

Published on: September 1, 2011

Acoustic startle response in panic disorder.

Elisa Favaron1, Laura Bellodi, Sara Biffi

  • 1Anxiety Disorder Clinical and Research Unit, Vita-Salute S.Raffaele University, Milan, Italy. elisa.favaron@psych.ox.ac.uk

Psychiatry Research
|February 2, 2010
PubMed
Summary
This summary is machine-generated.

This study found that panic disorder patients did not show heightened startle responses to loud sounds compared to healthy individuals. However, panic patients did report higher baseline anxiety levels.

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

Last Updated: Jun 16, 2026

Habituation and Prepulse Inhibition of Acoustic Startle in Rodents
08:38

Habituation and Prepulse Inhibition of Acoustic Startle in Rodents

Published on: September 1, 2011

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

Area of Science:

  • Neuroscience
  • Psychiatry
  • Psychophysiology

Background:

  • The amygdala and limbic system are crucial for fear responses.
  • A hyperactive
  • fear network
  • may underlie panic disorder.
  • Panic patients might exhibit heightened sensitivity to fear stimuli.

Purpose of the Study:

  • To investigate if patients with panic disorder (PD) exhibit hyperreactivity to aversive auditory stimuli.
  • To compare the startle response magnitude between PD patients and healthy controls.

Main Methods:

  • A sample of 29 PD patients and 29 healthy controls were recruited.
  • The startle response to loud (100 dB) sounds was measured using skin conductance.
  • Baseline anxiety was assessed using the State-Trait Anxiety Inventory (STAI).

Main Results:

  • No significant differences in baseline skin conductance or startle response to auditory stimuli were observed between PD patients and controls.
  • Panic disorder patients reported significantly higher baseline anxiety scores on the STAI.

Conclusions:

  • The findings do not support the hypothesis of auditory fear hyperreactivity in panic disorder.
  • Skin conductance response to sudden auditory stimuli does not appear to be a reliable indicator of hyperreactivity in panic disorder patients.