A tone or light activated by the EEG tells a trainee when he is producing alpha.
From the time.com
Simmons and a trainee responded to a call for a stolen car at the Surfview Motel.
From the news-journalonline.com
Carroll County Schools Superintendent Scott Cowart said the driver was a trainee.
From the edition.cnn.com
He joined the company full time in 1973 as a management trainee after graduating.
From the tennessean.com
He joined the BBC as a trainee and rose through the ranks of its news division.
From the independent.co.uk
I was by then a trainee stockbroker, and approached John at the back of the club.
From the thisisbristol.co.uk
It eventually withdrew the requirement, but only after a trainee filed a lawsuit.
From the en.wikipedia.org
During these six weeks a trainee is called an underclassman or a lowerclassman.
From the en.wikipedia.org
The FTO is responsible for testing the trainee verbally and through written test.
From the en.wikipedia.org
More examples
Someone who is being trained
The term training refers to the acquisition of knowledge, skills, and competencies as a result of the teaching of vocational or practical skills and knowledge that relate to specific useful competencies. ...
Someone who is still in the process of being formally trained in a workplace
A more-junior member of a research team who is being advised by someone. In academic research, trainees may be graduate students or post-doctoral fellows.
An individual registered with the supervisor according to WAC 296-05-311.
Refers to a person not employed by the Territory seeking to obtain placement experience with the Territory and may include:
An individual who is learning skills necessary for an occupation.
Includes any individual with a terminal degree participating in the research during a training or transitional period preparatory to a research or teaching career, requiring the supervision of a senior scholar (faculty member). ...
An entry level position having a defined training period and a formal training program with established competencies to be acquired.