When you get up in the morning and just before sleep, you are naturally in this state. When you close your eyes your brain automatically starts producing more alpha waves. Many studies monitoring the EEG activity of experienced meditators have revealed strong increases in alpha activity.
Bottom-up processing happens when someone tries to understand language by looking at individual meanings or grammatical characteristics of the most basic units of the text, (e.g. sounds for a listening or words for a reading), and moves from these to trying to understand the whole text.
The bottom or diastolic reading, according to the AHA, measures the pressure in the arteries between heartbeats.. This number is lower than the top number, which measures pressure during heart beats. The bottom number in your blood pressure reading carries more significance prior to age 50.