As defined by Mason and Whitehead, psychology is a branch of biological science which focuses on the study of conscious life in its originAs defined by Mason and Whitehead, psychology is a branch of biological science which focuses on the study of conscious life in its origin (66). Mason and Whitehead go on to argue that conscious life refers to the experiences of the individual and origins refer to the particular group or issue being reviewed: e.g., child, adult, abnormal or animal (66-7). A basic examination of the definition of psychology demonstrates that the practice is one that requires understanding of the human experience and behavior. Given that nursing practice incorporates an understanding of the patient to develop care practices that are both meaningful and purposeful, it is evident there is some link between nursing and psychology.Given the basic connection that appears to exist between psychology and nursing, there is an impetus to examine this relationship more explicitly. Using this as a foundation for investigation, the current research considers what has been noted regarding the use of psychology in the development of nursing theory and practice. Through a careful review of what has been noted regar