reticular formation


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reticular formation

n.
A diffuse network of white longitudinal nerve fibers interspersed with gray matter, located in the brainstem, that regulates various autonomic functions, such as sleep and waking.

retic′ular forma′tion


n.
a network of neurons in the brainstem involved in consciousness, breathing, and the transmission of sensory stimuli to higher brain centers.
[1885–90]

reticular formation

A system of nerve cells in the brain stem, controlling consciousness.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.reticular formation - a complex neural network in the central core of the brainstem; monitors the state of the body and functions in such processes as arousal and sleep and attention and muscle tone
brain stem, brainstem, brain-stem - the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus
neural net, neural network - any network of neurons or nuclei that function together to perform some function in the body
RAS, reticular activating system - the network in the reticular formation that serves an alerting or arousal function
References in periodicals archive ?
Bearing in mind the dominant role of the reticular formation of the brain stem, which is marked by a wide divergence of afferent information, a sense of pain transmitted through it is diffuse and can dominate the overall perception of the fetus.
We will use sophisticated electrode arrays with many sites to record the activity of a large number of cells in the reticular formation and spinal cord.
Romano Micha would place electrodes on a subject's scalp to detect activity in the reticular formation, a part of the brain stem that tracks how engaged someone is.
The enhanced parasympathetic activity and reduction in sympathetic arousal may be probably due to the influence of yogic relaxation at the level of reticular formation of the brain stem.
Coma is a transient condition during which the patient does not open the eyes and remains unresponsive to any stimulations, and it is probably due to a severe damage in the reticular formation. (4,5)
The additional findings include T1-hypointense and T2 and FLAIR hyperintense signal abnormalities in the inferior olivary nuclei, inferior cerebellar peduncles, central tegmental tracts, reticular formation in the dorsal pons and periaqueductal gray matter in the midbrain (1,2).
ii) its reflected (in medulla oblongata or reticular formation) virtual energy-pulse series (becoming of mind--mental awareness) together constitute human consciousness and are the ingredients of human consciousness (8)
Only the ventromedial bulbar reticular formation, originating from the dorsal reticulospinal tract is under cortical control.
Friauf, "Giant neurons in the rat reticular formation: a sensorimotor interface in the elementary acoustic startle circuit?," The Journal of Neuroscience, vol.
Figure 8(a) shows that the interior structure of polyurethane presents honeycomb-like reticular formation when magnified 50 times with large interior pore space.
The contralateral response, R2c, reflects the crossing of the brainstem in the medulla and progresses through the reticular formation to elicit a response at the contralateral facial nucleus (7-9).
(2) The central pathway: (1) information is transduced in the primary sensory neurons of the spinal DRG and then transmitted to the spinal dorsal horn neurons (DHN), wherein nociceptive information is subject to primary central integration, followed by ascending transmission in the spinal cord through the spinothalamic tract, the spinoreticular tract, and the spinomesencephalic tract to the thalamus, the reticular formation, and the midbrain; further, the information is projected to the cerebral somatosensory cortex, the anterior cingulate cortex (ACC), and the insular cortex, resulting in visceral pain [14].