Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

REM Sleep Behavior Disorder

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...

Understanding Sleep

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...

Sleep-Wake Cycles

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:

Stages of Sleep

Stages of Sleep

Sleep progresses through distinct stages, each characterized by specific brain wave patterns and physiological responses ranging from wakefulness to stages of non-rapid eye movement, known as non-REM, to rapid eye movement, referred to as REM. Understanding these stages helps in recognizing how sleep supports various bodily and cognitive functions.
Before sleep begins, in wakefulness, the brain exhibits primarily beta waves, which are high in frequency and low in amplitude, indicating alertness...

Sleepwalking and Sleep Talking

Sleepwalking and Sleep Talking

Somnambulism, commonly known as sleepwalking, involves individuals engaging in activities ranging from simple walking to more complex behaviors such as driving. Sleepwalking typically occurs during the slow-wave sleep stages 3 and 4 early in the night when the person is not dreaming, contradicting the myth that sleepwalkers are acting out their dreams.
Factors that increase the likelihood of sleepwalking include sleep deprivation and alcohol consumption. Contrary to common beliefs, it is safe...

Insufficient Sleep and Sleep Deprivation

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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Reliability of the bicaudate parameter in the revealing of the enlarged lateral Ventricles in schizophrenia patients.

Psychiatria Danubina·2018

Same author

Five-Factor Model Personality Profiles: The Differences between Alcohol and Opiate Addiction among Females.

Psychiatria Danubina·2017

Same author

Effect of childhood general traumas on suicide attempt depends on TPH2 and ADARB1 variants in psychiatric patients.

Journal of neural transmission (Vienna, Austria : 1996)·2017

Same author

Burnout of Formal Caregivers of Children with Cerebral Palsy.

The Israel journal of psychiatry and related sciences·2017

Same author

sVCAM-1, sICAM-1, TNF-α and IL-6 levels in bipolar disorder type I: Acute, longitudinal and therapeutic implications.

The world journal of biological psychiatry : the official journal of the World Federation of Societies of Biological Psychiatry·2016

Same author

Predictive value of sICAM-1 and sVCAM-1 as biomarkers of affective temperaments in healthy young adults.

Journal of affective disorders·2016

Search research articles

Related Experiment Videos

Descartes and His Peculiar Sleep Pattern.

Aleksandar Damjanovic¹, Srdjan D Milovanovic¹, Nikola N Trajanovic^2,3

¹a Clinic for Psychiatry , Clinical Center of Serbia and University of Belgrade , Belgrade , Serbia.

Journal of the History of the Neurosciences

|August 21, 2015

Summary

René Descartes identified the pineal gland as the soul's seat. Modern science confirms its role in circadian rhythms, a system Descartes himself may have experienced disruptions in.

Keywords:

Descartes circadian rhythms epiphysis cerebri pineal gland sleep deprivation

Related Experiment Videos

Area of Science:

Neuroscience
Philosophy of Mind
History of Science

Background:

René Descartes, a pivotal figure in modern science, theorized the pineal gland as the seat of the soul.
His philosophical inquiries into consciousness and the mind-body problem were groundbreaking.
Descartes' anatomical and philosophical work laid foundations for future scientific research.

Discussion:

Contemporary research validates the pineal gland's crucial role in regulating circadian rhythms.
This aligns with Descartes' focus on the pineal gland, albeit from a different scientific perspective.
Interestingly, biographical accounts suggest Descartes experienced a delayed sleep phase, an aberration of the circadian rhythm.

Key Insights:

The pineal gland's function in circadian rhythm regulation is now scientifically established.
Descartes' historical focus on the pineal gland is retrospectively relevant to modern chronobiology.
A potential personal connection between Descartes' sleep patterns and his research focus exists.

Outlook:

Further research can explore the historical context of Descartes' theories in light of modern neuroscience.
Investigating the interplay between philosophical inquiry and biological function offers new perspectives.
Understanding circadian rhythm disorders may benefit from historical insights into sleep phenomena.