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Sleepwalking
Sleepwalking, also known as somnambulism or noctambulism, is a phenomenon of combined sleep and wakefulness. It is classified as a sleep disorder belonging to the parasomnia family. It occurs during the slow wave stage of sleep, in a state of low consciousness, with performance of activities that are usually performed during a state of full consciousness. These activities can be as benign as talking, sitting up in bed, walking to a bathroom, consuming food, and cleaning, or as hazardous as cooking, driving a motor vehicle, violent gestures and grabbing at hallucinated objects.Swanson, Jenifer, ed. "Sleepwalking". ''Sleep Disorders Sourcebook''. MI: Omnigraphics, 1999. 249–254, 351–352. Although sleepwalking cases generally consist of simple, repeated behaviors, there are occasionally reports of people performing complex behaviors while asleep, although their legitimacy is often disputed. Sleepwalkers often have little or no memory of the incident, as their consciousness ...
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Somnambulism
Sleepwalking, also known as somnambulism or noctambulism, is a phenomenon of combined sleep and wakefulness. It is classified as a sleep disorder belonging to the parasomnia family. It occurs during the slow wave stage of sleep, in a state of low consciousness, with performance of activities that are usually performed during a state of full consciousness. These activities can be as benign as talking, sitting up in bed, walking to a bathroom, consuming food, and cleaning, or as hazardous as cooking, driving a motor vehicle, violent gestures and grabbing at hallucinated objects.Swanson, Jenifer, ed. "Sleepwalking". ''Sleep Disorders Sourcebook''. MI: Omnigraphics, 1999. 249–254, 351–352. Although sleepwalking cases generally consist of simple, repeated behaviors, there are occasionally reports of people performing complex behaviors while asleep, although their legitimacy is often disputed. Sleepwalkers often have little or no memory of the incident, as their consciousness h ...
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Parasomnia
Parasomnias are a category of sleep disorders that involve abnormal movements, behaviors, emotions, perceptions, and dreams that occur while falling asleep, sleeping, between sleep stages, or during arousal from sleep. Parasomnias are dissociated sleep states which are partial arousals during the transitions between wakefulness, NREM sleep, and REM sleep, and their combinations. Classification The newest version of the International Classification of Sleep Disorders (ICSD, 3rd. Ed.) uses State Dissociation as the paradigm for parasomnias. Unlike before, where wakefulness, non-rapid eye movement (NREM) sleep, and rapid eye movement (REM) sleep were considered exclusive states, research has shown that combinations of these states are possible and thus, may result in unusual unstable states that could eventually manifest as parasomnias or as altered levels of awareness. Although the previous definition is technically correct, it contains flaws. The consideration of the State Di ...
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Night Terror
Night terror, also called sleep terror, is a sleep disorder causing feelings of panic or dread and typically occurring during the first hours of stage 3–4 non-rapid eye movement (NREM) sleep and lasting for 1 to 10 minutes. It can last longer, especially in children. Sleep terror is classified in the category of NREM-related parasomnias in the International Classification of Sleep Disorders. There are two other categories: REM-related parasomnias and other parasomnias. Parasomnias are qualified as undesirable physical events or experiences that occur during entry into sleep, during sleep, or during arousal from sleep. Sleep terrors usually begin in childhood and usually decrease as age increases. Factors that may lead to sleep terrors are young age, sleep deprivation, medications, stress, fever, and intrinsic sleep disorders. The frequency and severity differ among individuals; the interval between episodes can be as long as weeks and as short as minutes or hours. This has cr ...
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Sleep Disorder
A sleep disorder, or somnipathy, is a medical disorder affecting an individual's sleep patterns, sometimes impacting physical, mental, social, and emotional functioning. Polysomnography and actigraphy are tests commonly ordered for diagnosing sleep disorders. Sleep disorders are broadly classified into dyssomnias, parasomnias, circadian rhythm sleep disorders involving the timing of sleep, and other disorders, including those caused by medical or psychological conditions. When a person struggles to fall asleep or stay asleep without any obvious cause, it is referred to as insomnia, which is the most common sleep disorder. Other sleep disorders include sleep apnea, narcolepsy, hypersomnia (excessive sleepiness at inappropriate times), sleeping sickness (disruption of the sleep cycle due to infection), sleepwalking, and night terrors. Sleep disruptions can be caused by various issues, including teeth grinding (bruxism) and night terrors. Managing sleep disturbances that are seconda ...
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Somniloquy
Somniloquy, commonly referred to as sleep-talking, is a parasomnia in which one speaks aloud while asleep. It can range from simple mumbling sounds to loud shouts or long, frequently inarticulate, speeches. It can occur many times during a sleep cycle and during both NREM and REM sleep stages, though, as with sleepwalking and night terrors, it most commonly occurs during delta-wave NREM sleep or temporary arousals therefrom. When somniloquy occurs during rapid eye movement sleep, it represents a so-called " motor breakthrough" of dream speech: words spoken in a dream are spoken out loud. Depending on its frequency, this may or may not be considered pathological. All motor functions are disabled during healthy REM sleep and therefore REM somniloquy is usually considered a component of REM behavior disorder. Presentation Associated conditions Sleep-talking can occur by itself (i.e., idiopathic) or as a feature of another sleep disorder such as: * Rapid eye movement behavior diso ...
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Sleep Driving
Sleep driving, also known as sleepwalk driving, is a rare phenomenon where the person drives a motor vehicle while they are sleepwalking. If stopped by police, sleepwalk-drivers are totally incapable of having any interaction with the police, if they are still sleepwalking during the event. Sleepwalk-driving can occur to people who normally don't experience sleepwalking, since some medications, especially zolpidem and eszopiclone Eszopiclone, sold under the brand name Lunesta among others, is a nonbenzodiazepine medication used in the treatment of short-term and long-term insomnia. It holds the distinction of being one of the few FDA-approved hypnotic medications with ..., can cause sleepwalking as unwanted side effect. Cases A case of a fatal hit-and-run accident involving the driver claiming to be sleep-driving has been recorded. However, no evidence of the claims could be found by a sleep expert during the following trial. See also * Drowsy driving * Highway hypnosi ...
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Sexomnia
Sexsomnia, also known as sleep sex, is a distinct form of parasomnia, or an abnormal activity that occurs while an individual is asleep. Sexsomnia is characterized by an individual engaging in sexual acts while in non-rapid eye movement ( NREM) sleep. Sexual behaviors that result from sexsomnia are not to be mistaken with normal nocturnal sexual behaviors, which do not occur during NREM sleep. Sexual behaviors that are viewed as normal during sleep and are accompanied by extensive research and documentation include nocturnal emissions, nocturnal erections, and sleep orgasms. Sexsomnia can present in an individual with other pre-existing sleep-related disorders. Sexsomnia is most often diagnosed in males beginning in adolescence. Although they may appear to be fully awake, individuals who have sexsomnia often have no recollection of the sexual behaviors they exhibit while asleep. As a result, the individual that they share the bed with notices and reports the sexual behavior. ...
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Wakefulness
Wakefulness is a daily recurring brain state and state of consciousness in which an individual is conscious and engages in coherent cognition, cognitive and behavioral responses to the external world. Being awake is the opposite of being asleep, in which most external inputs to the brain are excluded from neural processing. Effects upon the brain The longer the brain has been awake, the greater the synchronous firing rates of cerebral cortex neurons. After sustained periods of sleep, both the speed and synchronicity of the neurons firing are shown to decrease. Another effect of wakefulness is the reduction of glycogen held in the astrocytes, which supply energy to the neurons. Studies have shown that one of sleep's underlying functions is to replenish this glycogen energy source. Maintenance by the brain Wakefulness is produced by a complex interaction between multiple neurotransmitter systems arising in the brainstem and ascending through the midbrain, hypothalamus, thalamus ...
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Somniloquy
Somniloquy, commonly referred to as sleep-talking, is a parasomnia in which one speaks aloud while asleep. It can range from simple mumbling sounds to loud shouts or long, frequently inarticulate, speeches. It can occur many times during a sleep cycle and during both NREM and REM sleep stages, though, as with sleepwalking and night terrors, it most commonly occurs during delta-wave NREM sleep or temporary arousals therefrom. When somniloquy occurs during rapid eye movement sleep, it represents a so-called " motor breakthrough" of dream speech: words spoken in a dream are spoken out loud. Depending on its frequency, this may or may not be considered pathological. All motor functions are disabled during healthy REM sleep and therefore REM somniloquy is usually considered a component of REM behavior disorder. Presentation Associated conditions Sleep-talking can occur by itself (i.e., idiopathic) or as a feature of another sleep disorder such as: * Rapid eye movement behavior diso ...
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Nocturnal Sleep-related Eating Disorder
Nocturnal sleep-related eating disorder (NSRED) is a combination of a parasomnia and an eating disorder. It is a non-rapid eye movement sleep (NREM) parasomnia.Inoue, Y. (2015). Sleep-related eating disorder and its associated conditions. ''Psychiatry and clinical neurosciences'', 69(6), 309–320. It is described as being in a specific category within somnambulism or a state of sleepwalking that includes behaviors connected to a person's conscious wishes or wants. Thus many times NSRED is a person's fulfilling of their conscious wants that they suppress; however, this disorder is difficult to distinguish from other similar types of disorders. Signs and symptoms Over the past 30 years, several studies have found that those affected by NSRED all have different symptoms and behaviors specific to them, yet they also all have similar characteristics that doctors and psychologists have identified to distinguish NSRED from other combinations of sleep and eating disorders such as nig ...
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Schizophrenia
Schizophrenia () is a mental disorder characterized variously by hallucinations (typically, Auditory hallucination#Schizophrenia, hearing voices), delusions, thought disorder, disorganized thinking and behavior, and Reduced affect display, flat or inappropriate affect. Symptoms Prodrome, develop gradually and typically begin during young adulthood and rarely resolve. There is no objective diagnostic test; diagnosis is based on observed behavior, a psychiatric history that includes the person's reported experiences, and reports of others familiar with the person. For a diagnosis of schizophrenia, the described symptoms need to have been present for at least six months (according to the DSM-5) or one month (according to the ICD-11). Many people with schizophrenia have other mental disorders, especially mood disorder, mood, anxiety disorder, anxiety, and substance use disorders, substance use disorders, as well as obsessive–compulsive disorder (OCD). About 0.3% to 0.7% of peo ...
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Neurosis
Neurosis (: neuroses) is a term mainly used today by followers of Freudian thinking to describe mental disorders caused by past anxiety, often that has been repressed. In recent history, the term has been used to refer to anxiety-related conditions more generally. The term "neurosis" is no longer used in condition names or categories by the World Health Organization's ''International Classification of Diseases'' (ICD) or the American Psychiatric Association's ''Diagnostic and Statistical Manual of Mental Disorders'' (DSM). According to the ''American Heritage Medical Dictionary'' of 2007, the term is "no longer used in psychiatric diagnosis". Neurosis is distinguished from ''psychosis'', which refers to a loss of touch with reality. Its descendant term, ''neuroticism'', refers to a personality trait of being prone to anxiousness and mental collapse. The term "neuroticism" is also no longer used for DSM or ICD conditions; however, it is a common name for one of the Big Five p ...
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