Related Experiment Video

Updated: Apr 28, 2026

Protocol for Studying Extinction of Conditioned Fear in Naturally Cycling Female Rats
09:07

Protocol for Studying Extinction of Conditioned Fear in Naturally Cycling Female Rats

Published on: February 23, 2015

13.3K

Explaining the gender difference in nightmare frequency

Michael Schredl

    The American Journal of Psychology
    |June 18, 2014
    PubMed

    More Related Videos

    Author Spotlight: Overcoming Challenges in Drosophila Sleep Measurement Using DAM System05:59

    Author Spotlight: Overcoming Challenges in Drosophila Sleep Measurement Using DAM System

    Published on: October 20, 2023

    2.9K
    Quantifying Infra-slow Dynamics of Spectral Power and Heart Rate in Sleeping Mice10:56

    Quantifying Infra-slow Dynamics of Spectral Power and Heart Rate in Sleeping Mice

    Published on: August 2, 2017

    9.3K

    Related Concept Videos

    Nightmares and Night Terrors01:18

    Nightmares and Night Terrors

    Nightmares and night terrors represent two distinct types of sleep disturbances that differ in timing, characteristics, and the sleeper's recall of the event. Nightmares are vivid, disturbing dreams that usually awaken the sleeper from REM sleep, a stage of sleep where brain activity is high, and dreams are most frequent. Upon awakening, individuals often have detailed recollections of their nightmares, which can include themes of threats to survival, security, or self-esteem.
    Nightmares...
    1.0K
    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...
    1.2K
    Cause and Effect01:53

    Cause and Effect

    While variables are sometimes correlated because one does cause the other, it could also be that some other factor, a confounding variable, is actually causing the systematic movement in our variables of interest. For instance, as sales in ice cream increase, so does the overall rate of crime. Is it possible that indulging in your favorite flavor of ice cream could send you on a crime spree? Or, after committing crime do you think you might decide to treat yourself to a cone?
    10.5K
    REM Sleep Behavior Disorder01:15

    REM Sleep Behavior Disorder

    REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
    RBD is significantly associated with...
    2.9K
    Sleep-Wake Cycles01:24

    Sleep-Wake Cycles

    Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and  rapid eye movement (REM).
    NREM Sleep
    NREM sleep comprises four progressive stages that seamlessly merge:
    3.0K
    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...
    1.3K