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Related Concept Videos

Understanding Consciousness01:23

Understanding Consciousness

1.6K
Consciousness can be defined as the state of being aware of and able to think about one's existence, sensations, and surroundings. It encompasses two major components: awareness and arousal. Awareness pertains to the recognition of environmental stimuli and internal states. At the same time, arousal refers to the physiological readiness to engage with these stimuli, which varies significantly between states like sleep and wakefulness.
Sleep, a crucial state, is characterized by reduced...
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Altered States of Awareness01:06

Altered States of Awareness

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Altered states of consciousness represent significant deviations from one's normal mental state. These deviations can range from subtle changes in awareness to profound transformations in perception, thought processes, and sensory experiences. Altered states of consciousness can be triggered by various factors, including drug use, meditation, hypnosis, illness, or even intense fatigue.
The ingestion of substances like stimulants or hallucinogens leads to chemical alterations in the brain...
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High-Level and Low-Level Awareness01:19

High-Level and Low-Level Awareness

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Controlled processes in human consciousness represent high-alert mental states where individuals deliberately focus their attention on achieving specific goals. Controlled processes can be seen in situations like mastering new technology, where a person might become so absorbed that they ignore surrounding distractions. Such processes involve selective attention, requiring one to concentrate on particular elements of experience while disregarding others. These are governed by executive...
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Dissociative Disorders01:27

Dissociative Disorders

360
Dissociative disorders represent complex psychological conditions characterized by disruptions in consciousness, memory, identity, or perception. These disruptions cause individuals to experience a disconnection from their thoughts, emotions, and memories. The phenomenon is not merely an occasional lapse in attention but a profound alteration in mental functioning that can severely impact daily life.
Dissociative Fugue
A hallmark feature of dissociative disorders is the dissociative fugue...
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Subconsciousness and No Awareness01:15

Subconsciousness and No Awareness

566
The concept of subconscious awareness refers to the processing of information below the level of conscious thought, which significantly influences both behaviors and decisions. It is also known as waking subconscious awareness. This complex level of cognition operates without the direct awareness of the individual, facilitating rapid and simultaneous handling of multiple information streams.
An illustrative example of subconscious processing is its role in problem-solving. Often, individuals...
566
Ecological Disturbance02:26

Ecological Disturbance

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An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.
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Related Experiment Video

Updated: Dec 24, 2025

SECONDs Administration Guidelines: A Fast Tool to Assess Consciousness in Brain-injured Patients
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SECONDs Administration Guidelines: A Fast Tool to Assess Consciousness in Brain-injured Patients

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[Consciousness Disturbance].

Tomohiro Kurihara1

  • 1Department of Emergency and Critical Care Medicine, Keio University School of Medcine.

Brain and Nerve = Shinkei Kenkyu No Shinpo
|April 15, 2020
PubMed
Summary

Diagnosing consciousness disturbance requires prompt differential diagnosis and stabilization. Careful physical exams and follow-up are crucial due to the inability to interview patients directly.

Area of Science:

  • Neurology
  • Emergency Medicine
  • Critical Care

Background:

  • Diseases causing consciousness disturbance significantly impact patient prognosis and often affect vital respiratory and circulatory functions.
  • Accurate and timely differential diagnosis is essential for appropriate treatment initiation, yet preconceptions can lead to misdiagnosis.
  • The inability to conduct direct medical interviews with patients experiencing consciousness disturbance presents a unique challenge compared to other neurological conditions.

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