In this article psychological practices compatible with the principles of organization in healthcare units (SUS) and the challenges due to the insertion of psychologists in public health services are discussed. This study aims to present a proposal of a collective psychological work as a strategy in the field of Public Health. The study focuses on the importance of a more sociocultural oriented character. Through the use of semi-structured interviews, the study describes the professional trajectories of psychologists in health services associated to the municipal Health Department in Salvador, Bahia, 2003. Three types of professional trajectories were described taking into consideration the psychological practices developed, and the meaning attributed to them: conflict, reproduction, and construction. The collective psychological performance was defined taking the professional trajectory of construction as a starting point.
collective psychological performance; basic health units; professional trajectories