Brain waves indicating normal waking state with consciousness directed to the external environment.
These are found mainly in adults who are awake, alert, whose eyes are open and who may be concentrating on some task or other activity. They are most reliably recorded from the front and middle of the scalp, and are related to activity in the sensory and motor cortex.
'Desynchronized' high-frequency (20 Hz) waves seen in electroencephalogram in mentally active subject.
brain waves with a frequency of greater than 12 cycles per second that are produced when a person is awake and alert.
Are present when a person is consciously thinking and focusing on the outside world. They are superliminal or above the threshold of awareness, i.e., the senses, or taking a test.
EEG (brain) wave activity with a frequency of 13 to 35 hertz (cycles per second) that is typically seen in active wakefulness and also associated with taking psychotropic drugs, in which the eyes blink repeatedly.
Problem-solving, normal state of conscious brain activity; 14-30 cycles per second.