Complex sentence: This was done at the Menninger Foundation by Elmer Green, Steve Fahrio, Patricia Norris, Joe Sargent, Dale Walters and others, they incorporated the hand warming imagery of autogenic training and used it as an aid to develop thermal biofeedback.
Split into simpler sentences: This was done at the Menninger Foundation by Elmer Green, Steve Fahrio, Patricia Norris, Joe Sargent, Dale Walters and others. They incorporated the hand warming imagery of autogenic training and used it as an aid to develop thermal biofeedback.