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Related Concept Videos

Narcolepsy01:07

Narcolepsy

Narcolepsy is a chronic sleep disorder characterized by pervasive, uncontrolled sleepiness and other sleep disturbances. One of its hallmark symptoms is an abrupt transition to REM sleep upon falling asleep, which causes symptoms typically associated with this phase to occur unexpectedly during wakefulness. These include the following symptoms, which typically last from a minute or two to half an hour.
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:
Decision Making01:20

Decision Making

Decision-making is a fundamental cognitive process that involves evaluating alternatives and selecting among them. This process can range from simple choices, such as deciding what to wear, to complex decisions, like choosing a major in college or a career path. The complexity of the decision often dictates the approach we use, which can be broadly categorized into two types: automatic and controlled decision-making.
Automatic decision-making is fast, intuitive, and relies on gut feelings...
Management of Insomnia01:19

Management of Insomnia

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...
Sleepwalking and Sleep Talking01:17

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...
Reason and Intuition01:37

Reason and Intuition

The human brain processes information for decision-making using one of two routes: an intuitive system and a rational system (Epstein, 1994; popularized by Kahneman, 2011 as System 1 and System 2, respectively). The intuitive system is quick, impulsive, and operates with minimal effort, relying on emotions or habits to provide cues for what to do next, while the rational system is logical, analytical, deliberate, and methodical. Research in neuropsychology suggests that the brain can only use...

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Related Experiment Video

Updated: Jun 5, 2026

An Automated T-maze Based Apparatus and Protocol for Analyzing Delay- and Effort-based Decision Making in Free Moving Rodents
07:42

An Automated T-maze Based Apparatus and Protocol for Analyzing Delay- and Effort-based Decision Making in Free Moving Rodents

Published on: August 2, 2018

Decision making in narcolepsy with cataplexy.

Sophie Bayard1, Beatriz Abril, Huan Yu

  • 1Service de Neurologie, Unité des Troubles du Sommeil, Hôpital Gui-de-Chauliac Montpellier, France.

Sleep
|January 5, 2011
PubMed
Summary
This summary is machine-generated.

Individuals with narcolepsy-cataplexy (NC) exhibit impaired decision-making under ambiguity, potentially seeking immediate rewards due to altered emotional processing. This study highlights a lack of perseverance in NC patients, impacting their choices.

Keywords:
Game of Dice TaskIowa Gambling TaskNarcolepsy with cataplexyhypocretin/orexin systemreward processing

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Last Updated: Jun 5, 2026

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Published on: September 22, 2020

Area of Science:

  • Neuroscience
  • Sleep Medicine
  • Behavioral Science

Background:

  • Narcolepsy-cataplexy (NC) involves the loss of hypocretin-producing neurons, affecting sleep-wake cycles and reward processing.
  • The hypocretin system is implicated in emotion regulation, reward sensitivity, and addiction vulnerability.

Purpose of the Study:

  • To investigate decision-making processes and addictive behaviors in individuals with narcolepsy-cataplexy.
  • To explore the relationship between hypocretin deficiency and altered reward processing in NC.

Main Methods:

  • Utilized the Iowa Gambling Task (IGT) for decision-making under ambiguity and the Game of Dice Task (GDT) for decision-making under risk.
  • Assessed participants using psychiatric interviews, the Beck Depression Inventory-II, and the UPPS Impulsive Behavior Scale.
  • Included polysomnography and Multiple Sleep Latency Test (MSLT) for NC patients, alongside neuropsychological evaluations.

Main Results:

  • Narcolepsy-cataplexy patients displayed higher depressive symptoms and a significant lack of perseverance.
  • NC patients showed selectively reduced performance on the IGT but normal performance on the GDT.
  • Lack of perseverance in NC was associated with disadvantageous decision-making on the IGT.

Conclusions:

  • Narcolepsy-cataplexy is associated with impaired decision-making under ambiguity and a lack of perseverance.
  • NC patients may prioritize immediate emotional rewards over long-term consequences, possibly compensating for reduced emotional reactivity.