AGRADECIMENTOSA Profa. Dra. Maria Elisa, que acompanho e admiro desde a graduação, pela orientação e confiança.A toda minha família, pelo constante incentivo, apoio e suporte.Ao meu marido José Eduardo Pompeu, meu maior incentivador, companheiro e exemplo profissional.A minha filha Bianca, que tantas vezes dormiu ao meu lado enquanto eu trabalhava no computador sem nunca reclamar.A todos meus colegas de trabalho, em especial a Alessandra Palazzin pela amizade e conforto nos momentos mais difíceis.A todos os participantes deste estudo.Palavras Chave: atenção, desempenho motor, idosos, doença de Parkinson. ABSTRACT POMPEU, SMAA. (2013). Preparation and application of attention division test in functional tasks. Dissertação de Mestrado, Instituto de Psicologia, Universidade de São Paulo, São Paulo. The aim of this study was to develop a testing division of tasks involving attention functional gait, postural control static and dynamic control manual and apply this test in young adults, seniors and individuals with PD in early and moderate stage of the disease. This is a cross-sectional study in Associação Brasil Parkinson, São Paulo. Study participants were 20 young adults, 17 seniors and 47 individuals diagnosed with PD, 16 in stage I in the scale of Hoehn Yahr staging, 15 in stage II, 16 stage III. The performance of 84 participants was observed during the execution of four functional tasks named: gait, postural control, dynamic, static postural control and manual control.We also analyzed the performance of eight specific tasks, four motor and four cognitive characteristics. The twelve tasks, and specific functional, were evaluated when performed alone (called simple task (ST), and also in dual task, when a functional task was performed simultaneously with a specific motor task (dual motor task (DMT) and also associated with a specific cognitive task (dual cognitive task (DCT). Under the conditions of dual task performance of both tasks was measured. Statistical analysis was performed using repeated measures ANOVA and post hoc Tukey test for checking possible performance differences between young and old, elderly and PD patients, and between patients in different stages of PD. Comparing young and old, the four functional tasks proposals were sensitive to identify differences associated with aging, particularly walking and manual control task. Among elderly and individuals with PD, the most sensitive task was to identify differences in manual control, where individuals with PD showed poorer performance in all conditions. Comparing individuals with DP in stage I, II and III was the least sensitive to manual control, which did not identify losses from the early stages of the disease (I and II). Aiming to verify the impact of the global association task, we analyzed the sum of losses of the division of attention to the task and the task specific functional motor and cognitive, called the total cost of motor and cognitive total cost. observed different patterns of results: the combination of static postural control task...