Se presentan resultados obtenidos en una investigación que describe la percepción del cambio desde sus propios protagonistas. Los sujetos fueron intencionalmente seleccionados, se distribuyeron en cinco tipos de grupos denominados vulnerables. Dado que el principal interés era localizar el fenómeno del cambio tal como era narrado por sus protagonistas, las técnicas utilizadas fueron discursivas y observacionales; también se obtuvieron datos cuantitativos, mediante la utilización de pruebas psicológicas. Se considera el cambio psicológico como la materia prima profesional del psicólogo: “el cambio”. Numerosos investigadores han publicado sobre procesos y resultados terapéuticos obtenidos, así como la tecnología aplicada Se estudiaron poblaciones con desigual grado de riesgo, en un continuum en cuyos extremos se encuentran grupos con daños corporales y en el opuesto, jóvenes excluidos por decisiones judiciales. Los grupos intermedios son estudiantes con problemas de aprendizaje, pacientes en psicoterapia y adolescentes embarazadas. Estos grupos presentan factores comunes en personalidades vulnerables. El enfoque ha sido micro psíquico, de abajo hacia arriba, con una perspectiva reduccionista centrada en las emociones, percepciones y categorizaciones cognitivas, que pudieran percibir durante sus respectivos tratamientos (Bunge, 2004). La urbanización en la zona Metropolitana genera zonas conflictivas de alto riesgo. Hay escasas investigaciones sobre los efectos de estos contextos. Palabras clave Cambio Vulnerabilidad Emociones Diseños ABSTRACT THE CHANGE PSYCHOLOGISTS, SOCIAL VULNERABILITY AND BASICS EMOTIONS. We present some results of an investigation that deals with describing the perception of change from their own players. The subjects were intentionally selected and were distributed in five types of groups that can be called vulnerable. As the main interest was to locate the phenomenon of change as it was narrated by its protagonists, the main techniques used were discursive, supplemented with other observational, but also quantitative data were obtained through the use of tests. It is considered the psychological change as the raw material professional psychologist: “change”. Many researchers have published on therapeutic processes and outcomes achieved, as well as applied technology. We studied populations with uneven degree of risk, in which extremes are groups with injuries and the other hand, young people excluded by court decisions. The groups are intermediate students with learning problems, patients in psychotherapy and teenage pregnancies. These groups have common factors in vulnerable personalities. The approach has been micro psychic, bottom-up, with a reductionist perspective focused on the emotions, perceptions and cognitive categorizations, which might perceive during their respective treatments (Bunge, 2004). Urbanization in the metropolitan area generates troubled areas of high risk. There is little research on the effects of these contexts. Key words Change Vulnerability Emotions Designs