States of consciousness are a temporary state of change in social perception, mental presence, and self-perception. Consciousness can be enhanced or blurred. An altered state of consciousness is often due to an unusual experience, but can also be a sign of somatic disorders, drugs, or a mental disorder.
Consciousness can be changed in the sense that it is limited, as at dusk and tunnel vision, which may be caused by fatigue or loss of consciousness, or it is dreamlike, as during daydreams.
In unusual or unexpected experiences, it is normal that consciousness is changing, with changes associated with emotional experiences, perceptions, and cognitive reactions. In case of danger, it is common that the mind is focused on the danger and that consciousness thereby is enchanced. In shock, on the other hand, the consciousness is clouded, and the person may then fall into unconsciousness, an extreme form of altered state of consciousness, or fell in the state of trance.
Positive experiences can also alter consciousness, for example, love lead to enhanced perception.
Consciousness can also change because of injury or disease in the brain or systemic diseases affecting the central nervous system. It is common for fever, insulin problems (diabetes or hypoglycemia), migraine, epilepsy, concussion, stroke, or hypoxia. Such states frequently sought approval for consuming psychoactive substances to either step up awareness, or to be mentally asleep or absorbed.
Altered states of consciousness are not uncommon for mental health problems or disorders, such as, for example, dissociative disorders, which main symptoms are dissociation. Moreover, serious changes in states of consciousness also occurs in various forms of schizophrenia.
In different religions altered states of consciousness are considered to be common mystical experiences, for example, in the form of extrasensory perception. Other variations include hypnosis, near death experiences and out-of-body experience.
State of human consciousness is determined by a number of interrelated factors. So, the level of human activity depends on the natural successive cycles of waking and sleep states. States of consciousness are also subject to change under the influence of drugs, they also depend on the nature of the signals that come through our sensory organs from the external world. Some signals coming from our mentality such as images stored in our memory also affect our consciousness, with the set of signals determined by the nature of congenital and acquired the requirements.
Modern psychology recognizes two fundamental states of consciousness inherent in all individuals: first and foremost is the sound sleep as a State of relaxation, as well as the state of wakefulness, or active state. Wake is a condition where we can actively adapt to the signals coming from the outside and from within.
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