1. Both regions are components of the reticular activating system ( RAS ). 2. I would first consider the reticular activating system . 3. This stimulated area of the brain became known as the reticular activating system or reticular formation. 4. Eysenck looked at the ascending reticular activating system ( ARAS ) for answering questions about personality. 5. The adrenergic component of the reticular activating system is closely associated with the noradrenergic neurons of the locus coeruleus. 6. Circadian rhythms also play a part in the reticular activating system , which is crucial for maintaining a state of consciousness. 7. This is due to increased activity in their reticular activating system , which responds to stimuli like food or social contact. 8. The effect lesions on the brainstem have on the ascending reticular activating system ( ARAS ) has also been hypothesized. 9. The LGN receives information directly from the ascending retinal ganglion cells via the optic tract and from the reticular activating system . 10. Hirsch said the olfactory bulb, the nose's nerve center, lies close to the brain's reticular activating system , which controls the sleep-wake cycle.