Related Experiment Video
Updated: Jan 26, 2026
04:59
Heat-sensitive Moxibustion as a Traditional Chinese Medicine Therapy for Chronic Obstructive Pulmonary Disease Combined with Insomnia
Published on: May 30, 2025
1.4K
Neurobiological Mechanisms In Chronic Insomnia
Michael Perlis1, Wil Pigeon2, Phil Gehrman1
1Behavioral Sleep Medicine Program, Department of Psychiatry, University of Pennsylvania, Suite 670, 3535 Market Street, Philadelphia, PA 19104.
Sleep Medicine Clinics
|April 16, 2019
Summary
This study suggests defining insomnia from a neurobiological viewpoint rather than a physiological one. Understanding the brain mechanisms of sleep and wakefulness is key to characterizing insomnia effectively.
Area of Science:
- Neuroscience
- Sleep Medicine
- Cognitive Science
Background:
- Current definitions of insomnia primarily focus on physiological aspects.
- A neurobiological understanding of insomnia is lacking.
- Integrating cognitive concepts is crucial for a comprehensive view.
Purpose of the Study:
- To explore the definition of insomnia from a neurobiological perspective.
- To review the neurobiology of sleep and wakefulness concerning insomnia.
- To propose an integrated approach for understanding insomnia.
Main Methods:
- Literature review on the neurobiology of sleep and wakefulness.
- Analysis of existing definitions of insomnia.
- Synthesis of neurobiological findings with cognitive theories.
Main Results:
- Insomnia is better conceptualized through its neurobiological underpinnings.
- The neurobiology of sleep and wakefulness provides a framework for understanding insomnia.
- Cognitive factors significantly influence the neurobiology of insomnia.
Conclusions:
- A neurobiological definition of insomnia is proposed.
- Understanding insomnia requires integrating neurobiology with modern cognitive science.
- Future research should focus on the cognitive-neurobiological interface in insomnia.
Related Concept Videos
01:27Insomnia
430
Insomnia is a prevalent sleep disorder characterized by difficulty falling asleep, frequent awakenings during the night, and waking up too early without being able to return to sleep. People with insomnia often experience these disruptions at least three nights a week for at least one month. Chronic insomnia, which lasts for at least three months, can lead to increased anxiety, which in turn can worsen sleep difficulties, creating a cycle of sleeplessness and stress.
Multiple factors contribute...
Multiple factors contribute...
430
01:19Management of Insomnia
580
The sleep cycle, an integral part of human health, consists of several stages with distinct characteristics and functions. It begins with a transition from wakefulness to sleep, known as the light sleep phase, followed by the restorative deep sleep phase, essential for physical recovery and growth. The cycle concludes with the Rapid Eye Movement (REM) phase, characterized by high brain activity and vivid dreaming. Insomnia, a prevalent sleep disorder, involves difficulty falling asleep, staying...
580
03:06Reaction Mechanisms
30.6K
Chemical reactions often occur in a stepwise fashion, involving two or more distinct reactions taking place in a sequence. A balanced equation indicates the reacting species and the product species, but it reveals no details about how the reaction occurs at the molecular level. The reaction mechanism (or reaction path) provides details regarding the precise, step-by-step process by which a reaction occurs.
For instance, the decomposition of ozone appears to follow a mechanism with two steps:
For instance, the decomposition of ozone appears to follow a mechanism with two steps:
30.6K
01:58Mechanical Protein Functions
5.5K
Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force.
5.5K
01:23Chronic Pharyngitis
11.6K
Chronic pharyngitis refers to persistent inflammation of the pharyngial mucosa.
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
11.6K
01:19Mechanism of Conjugation
973
Bacterial conjugation is a mechanism of horizontal gene transfer that enables the exchange of genetic material between bacterial cells through direct contact. This process is facilitated by a donor cell carrying a conjugative plasmid, which encodes genes necessary for pilus formation, DNA replication, and transfer. The conjugative plasmid plays a central role in initiating and executing the transfer of genetic material.The tra region of the conjugative plasmid encodes proteins responsible for...
973