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Lucid dream. In the psychology subfield of oneirology, a lucid dream is a type of dream wherein a person that is dreaming realizes that they are dreaming during their dream. The capacity to have lucid dreams is a trainable cognitive skill. [1] During a lucid dream, the dreamer may gain some amount of volitional control over the dream characters ...
Hypnagogia is the transitional state from wakefulness to sleep, also defined as the waning state of consciousness during the onset of sleep. Its opposite state is described as hypnopompia – the transitional state from sleep into wakefulness. Mental phenomena that may occur during this "threshold consciousness" phase include hypnagogic ...
Terminal lucidity (also known as rallying, terminal rally, the rally, end-of-life-experience, energy surge, the surge, or pre-mortem surge) [ 1 ] is an unexpected return of consciousness, mental clarity or memory shortly before death in individuals with severe psychiatric or neurological disorders. [ 2 ][ 3 ] It has been reported by physicians ...
Postictal state. The postictal state is the altered state of consciousness after an epileptic seizure. It usually lasts between 5 and 30 minutes, but sometimes longer in the case of larger or more severe seizures, and is characterized by drowsiness, confusion, nausea, hypertension, headache or migraine, and other disorienting symptoms.
The mental status examination (MSE) is an important part of the clinical assessment process in neurological and psychiatric practice. It is a structured way of observing and describing a patient's psychological functioning at a given point in time, under the domains of appearance, attitude, behavior, mood and affect, speech, thought process, thought content, perception, cognition, insight, and ...
Mental state. A mental state, or a mental property, is a state of mind of a person. Mental states comprise a diverse class, including perception, pain/pleasure experience, belief, desire, intention, emotion, and memory. There is controversy concerning the exact definition of the term. According to epistemic approaches, the essential mark of ...
Dream. A painting depicting Daniel O'Connell dreaming of a confrontation with George IV, shown inside a thought bubble. A dream is a succession of images, ideas, emotions, and sensations that usually occur involuntarily in the mind during certain stages of sleep. [1] Humans spend about two hours dreaming per night, [2] and each dream lasts ...
Bust of Epicurus.Achieving ataraxia is an important goal in Epicurean philosophy.. In Ancient Greek philosophy, ataraxia (Greek: ἀταραξία, from ἀ-indicating negation or absence and ταραχ-tarach-' to disturb, trouble ' with the abstract noun suffix -ία), generally translated as ' unperturbedness ', ' imperturbability ', ' equanimity ', or ' tranquility ', [1] is a lucid state ...