Mass Effect & Mass Effect 2
Biotic implants and amplifiers only provide the potential to create coherent mass effect fields. Whether biotics can actually do so is largely determined by their training.
Biotics must develop conscious control over their nervous systems, sending specific electrical impulses to the element zero nodules embedded in their nerves. They are taught to use their implants and amps with biofeedback devices and physical mnemonics. Specific gestures or muscle movements fire the proper sequence of nerves to activate a certain skill.
Conatix Industries pioneered biotic training with the Biotic Acclimation and Temperance Training program. Although BAaT did not achieve the desired results, many techniques taught are still used today.
Manu human think tanks are trying to develop some form of biotic super soldier. Most are benign efforts to create more flexible troops. Others, less publicly known, are unapologetic attempts to create Nietzschean supermen.