1. A method for on-line decision making support, comprising: sensing biological signals of a subject upon detection of a decision making process during a performance of a task; recording biological activity of the subject; completing the decision making process and releasing the recorded biological activity to a data processing system for analysis; comparing the recorded biological activity with a profile model for the subject; calculating a confident value for the recorded biological activity against the profile model for the subject, and performing a post-processing procedure if the confident value does not meet a predefined threshold, wherein the predefined threshold represents a desired performance of the subject on the task.