Related Experiment Video

Updated: Jul 9, 2026

Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder
04:33

Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder

Published on: April 26, 2024

[Psychiatric aspects of sleep]

Dusica Lecić-Tosevski, Milena Pejović-Milovancević, Smiljka Popović-Deusić

    Glas. Srpska Akademija Nauka I Umetnosti. Odeljenje Medicinskih Nauka
    |December 12, 2007
    PubMed
    Summary

    Sleep disturbances, affecting one-third of the population, stem from physiological and psychological issues. Insomnia is common, necessitating careful diagnosis for effective treatment of sleep quantity, quality, and timing problems.

    More Related Videos

    A Chronic Sleep Fragmentation Model using Vibrating Orbital Rotor to Induce Cognitive Deficit and Anxiety-Like Behavior in Young Wild-Type Mice06:23

    A Chronic Sleep Fragmentation Model using Vibrating Orbital Rotor to Induce Cognitive Deficit and Anxiety-Like Behavior in Young Wild-Type Mice

    Published on: September 22, 2020

    Optogenetic Manipulation of Neural Circuits During Monitoring Sleep/wakefulness States in Mice08:58

    Optogenetic Manipulation of Neural Circuits During Monitoring Sleep/wakefulness States in Mice

    Published on: June 19, 2019

    Related Concept Videos

    Understanding Sleep01:11

    Understanding Sleep

    Sleep, an essential biological state, involves significant reductions in physical activity, sensory awareness, and interaction with the environment. This complex physiological process is primarily regulated by specific brain regions, notably the hypothalamus and pons, which govern the sleep-wake cycle or circadian rhythm.
    The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
    Substance Use Disorders Affecting Sleep01:24

    Substance Use Disorders Affecting Sleep

    Substance use disorders involve a pattern of using drugs more extensively than intended and continuing use despite harmful consequences. This includes legal substances like alcohol and nicotine, as well as illegal drugs. These disorders often involve both physical and psychological dependence, reflecting compulsive use of substances that significantly alter thoughts, feelings, and behaviors, contributing to a major public health issue.
    Understanding the concepts of physical dependence,...
    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:
    Sedatives and Hypnotics Drugs: Miscellaneous Agents01:17

    Sedatives and Hypnotics Drugs: Miscellaneous Agents

    Sedatives and hypnotics encompass a wide range of substances, each with its unique mechanism of action, uses, and potential adverse effects.
    Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...
    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 often...
    Insufficient Sleep and Sleep Deprivation01:13

    Insufficient Sleep and Sleep Deprivation

    Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
    Sleep deprivation is a more severe form of sleep loss...