Final answer:
Hypnosis techniques promote a relaxed state and theta wave activity.
Step-by-step explanation:
In hypnosis, a relaxed state is promoted and it is associated with a specific type of brain wave activity known as theta waves. Theta waves have a frequency of 4-7 Hz and are characterized by higher amplitude. These waves are similar to the brain wave patterns observed during stage 1 sleep, which are alpha waves (8-12 Hz) with lower frequency and higher amplitude compared to beta waves.