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reticular formation

an extensive network of nerve cell bodies and fibers within the brainstem, extending from the medulla oblongata to the upper part of the midbrain, that is widely connected to the spinal cord, cerebellum, thalamus, and cerebral cortex. It is most prominently involved in arousal, alertness, and sleep–wake cycles but also controls some aspects of action and posture. Also called brainstem reticular formation. See also reticular activating system.

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Psychology term of the day

September 17th 2024

scrying

scrying

n. a divination practice in which a person attempts to see visions of or gain insights about the past, present, or future by staring into fire, smoke, or more commonly, a shiny, opaque, or reflective medium, such as water, crystals or a crystal ball, glass, or mirrors. See also crystal gazing.