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Pronounced lack of alertness is an altered level of consciousness. States with low levels of alertness include drowsiness . The word is formed from "alert", which comes from the Italian all'erta (on the watch, literally: on the height; 1618).
Highlighted region shows the anterior cingulate cortex, a region of the brain shown to be activated during meditation.. Meditation and its effect on brain activity and the central nervous system became a focus of collaborative research in neuroscience, psychology and neurobiology during the latter half of the 20th century.
Tonotopic organization in the cochlea forms throughout pre- and post-natal development through a series of changes that occur in response to auditory stimuli. [7] Research suggests that the pre-natal establishment of tonotopic organization is partially guided by synaptic reorganization; however, more recent studies have shown that the early changes and refinements occur at both the circuit and ...
Peripheral stimuli are generally applied to the limbs, and a common technique is squeezing the lunula area of the finger or toe nail, often with an adjunct such as a pen. [1] Like the sternal rub, though, this can cause bruising, and is recommended against, in favour of squeezing the side of the finger.
The insular cortex (also insula and insular lobe) is a portion of the cerebral cortex folded deep within the lateral sulcus (the fissure separating the temporal lobe from the parietal and frontal lobes) within each hemisphere of the mammalian brain.
Arousal is the physiological and psychological state of being awoken or of sense organs stimulated to a point of perception. It involves activation of the ascending reticular activating system (ARAS) in the brain, which mediates wakefulness, the autonomic nervous system, and the endocrine system, leading to increased heart rate and blood pressure and a condition of sensory alertness, desire ...
WASHINGTON (Reuters) -President-elect Donald Trump said on Saturday the U.S. should not be involved in the conflict in Syria, where rebel forces are threatening the government of President Bashar ...
Consciousness functionally can be divided into two components: (i) wakefulness, which is arousal and alertness; (ii) content of consciousness, which is the processing of content. A study of traumatic brain injuries in war veterans was undertaken to better understand the functional role of the claustrum.