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, wherein the biological signals are brainwave signals; recording from the subject for a right hemisphere visual cortex and a left hemisphere visual cortex biological activity of the subject, wherein the biological activity is electrical activity recorded over one more frequency bands; completing the decision making process and releasing the recorded biological activity to a data processing system for analysis; generating a current feature vector consisting of spectra from the right visual cortex, the left visual cortex and a difference between the right visual cortex to the left visual cortex over the one or more frequency bands; comparing the current feature vector to a target feature vector from 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.