Heroin and its synthetic substitute, methadone, are depressants that belong to the class of:

The process by which our sensory systems convert physical energy into neural impulses is called:

The _____ waves of an alert, waking state, and the regular _____ waves of an awake, relaxed state differ from the slower, larger _____ waves of deep N3 sleep.

By puberty, _____ results in a massive loss of underused neural connections.

The need to take larger and larger doses of a drug in order to experience its effects is an indication of:

The rhythmic bursts of brain activity that occur during N2 sleep are called:

The _____ theory of dreaming suggests that dreams help sift, sort, and fix the day’s experience in our memory.

How many bits are neede to store 15 shades of gray, 10 shades of gray, 11 shades of gray?

What is the reciprocal of micro, milli?

For a continuous wave Doppler for the frequency is the same as —-frequency, but in pulsed wave imaging, the frequency depends the thickness and speed of the sound inside the element. (page 122, 123, 124, 125)