RESUMO
Brain-controlled wheelchair (BCW) is one of the important applications of brain-computer interface (BCI) technology. The present research shows that simulation control training is of great significance for the application of BCW. In order to improve the BCW control ability of users and promote the application of BCW under the condition of safety, this paper builds an indoor simulation training system based on the steady-state visual evoked potentials for BCW. The system includes visual stimulus paradigm design and implementation, electroencephalogram acquisition and processing, indoor simulation environment modeling, path planning, and simulation wheelchair control, etc. To test the performance of the system, a training experiment involving three kinds of indoor path-control tasks is designed and 10 subjects were recruited for the 5-day training experiment. By comparing the results before and after the training experiment, it was found that the average number of commands in Task 1, Task 2, and Task 3 decreased by 29.5%, 21.4%, and 25.4%, respectively ( < 0.001). And the average number of commands used by the subjects to complete all tasks decreased by 25.4% ( < 0.001). The experimental results show that the training of subjects through the indoor simulation training system built in this paper can improve their proficiency and efficiency of BCW control to a certain extent, which verifies the practicability of the system and provides an effective assistant method to promote the indoor application of BCW.
RESUMO
Objective To explore the effective therapies of non-small cell lung cancer(NSCLC) of advanced stage.Method.Two hundred twenty nine patients with NSCLC at advanced stage were treated by three methods including comprehensive therapy,chemotherapy and radiotherapy.Curative effects of various therapy methods were analyzed.Result The total effective rates of the patients who received comprehensive therapy were obviously higher than chemotherapy and radiotherapy alone groups,they were 68 96%,49 17%,50 00%(P
RESUMO
Objective To explore the effective therapies of no n-small cell lung cancer(NSC LC) of advanced stage.Method.Two hundred twenty nine patient s with NSCLC at advanced stage were treated by thr ee methods including comprehensive therapy,chemotherapy and radiotherapy.Cur ativ e effects of various therapy methods were analyzed.Result The to tal effective rates o f the patients who received comprehensive therapy were obviously higher than che motherapy and radiotherapy alone groups,they were 68.96%,49.17%,50.00%(P ＜0.01) respectively.Conclusion The preference method was c omprehensive therapy.A clos e relationship was found among the total efficacy and pathological classificat ion and clinical staging.