Searching for the stimulus controlling brain oxygen supply

oxygen supply to the brain following severe cerebral trauma

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Searching for stimulus-driven shifts of attention.

Several types of dynamic cues (e.g., abrupt onsets, motion) draw attention in visual search tasks even when they are irrelevant. Although these stimuli appear to capture attention in a stimulus-driven fashion, typical visual search tasks might induce an intentional strategy to focus on dynamic events. Because observers can only begin their search when the search display suddenly appears, they m...

Finanzplanorientiertes Supply-Chain-Controlling

Relationship between adenosine concentration and oxygen supply in rat brain.

Since adenosine is present in normal brain tissue and cerebrosipinal fluid and since it dilates the pial vessels, it is possible that adenosine, in addition to H-+, is also a mediator of the metabolic regulation of cerebral blood flow. Evidence supporting this hypothesis was obtained under various experimental conditions characterized by achange in brain oxygen supply. The brain was frozen in...

Searching for the brain bases of insomnia.

Insomnia, daytime sleepiness, and napping are all highly prevalent among the elderly, reflecting changes in sleep architecture, sleep efficiency, sleep quality, and circadian sleep-wake cycles. Insomnia is sometimes associated with subjective daytime sleepiness, as well as other clinical and socioeconomic consequences. The daytime sleepiness will at times lead to napping. Although napping is vi...