In addition to his status as a founder of behavioral pharmacology, he made significant contributions in the areas of drug abuse and treatment, space exploration, and human research ethics.

With the ability to recruit talented scientists fulfilling their military service obligations to his laboratory, Brady established one of the first multidisciplinary physiological psychology (an early term for neuroscience) research programs in the country.

This pulling together of researchers from different backgrounds was characteristic of Brady's unitary vision of behavior analysis, neuroscience, and biology as aspects of the same scientific discipline that were separated only by their focus on different variables.

[1][3] During this time, Brady's research group continued work on the conditioned emotional response in animal models using rats and primates, conducting studies on the effects of tetraethylammonium, amphetamine, reserpine, lysergic acid diethylamide (LSD), Nembutal, and Benzedrine.

[1] Brady also conducted one of the first studies of subcortical electrical brain self-stimulation in animals and authored a paper on "Ulcers in 'executive' monkeys", that provided evidence for the relationship between intermittent schedules of emotional stress and physical symptomology.

[3] In addition to his research program at Walter Reed, in 1957, Brady joined the faculty of the Psychology Department at the University of Maryland, College Park and became the director of the Psychopharmacology Laboratory, established with the help of a grant from the National Institute of Mental Health, the first they awarded in behavioral pharmacology.

In 1959, Able and Baker, two of the trained monkeys, were able to endure a 10,000 mile per hour suborbital flight in the nose cone of a Saturn rocket while successfully completing the pre-launch avoidance tasks and were safely recovered.

Brady and other behavioral analysts from Walter Reed, including Bernard Migler (who later invented Seroquel), and the University of Maryland trained a number of chimpanzees to complete simple timed tasks in response to stimuli such as flashing lights and sounds.

[1] In 1970, Brady retired from the US Army at the rank of colonel and accepted an appointment at Johns Hopkins University Medical School in Baltimore as a professor of Behavioral Biology.

Brady's work in this area also helped illustrate how drugs are powerful reinforcers, amending basic theories of addiction and contributing to the development of modern approaches to substance abuse treatment.

To the commission, Brady contributed a radical behaviorist perspective on ethics as consisting of two components: values, or what people say is important to them, and morals, the practices that society rewards and punishes.