Methods and Welfare Considerations 
in Behavioral Research with Animals 
REPORT OF A NATIONAL INSTITUTES OF HEALTH WORKSHOP 
Editors 
Adrian R. Morrison, D.V.M., Ph.D. 
Hugh L. Evans, Ph.D. 
Nancy A. Ator, Ph.D. 
Richard K. Nakamura, Ph.D. 
With the editorial assistance of Deborah Faryna 
The views and opinions expressed on the following pages are solely those of the participants and 
do not necessarily constitute an endorsement, real or implied, by the U.S. Department of Health and Human Services 
Further, this report is being distributed for informational purposes only. It neither establishes NIH policy' 
nor reflects a change in official animal care and use guidelines. 
