1. A visual detection system comprising: an image processing unit coupled to a display operable to generate an image of a scene being viewed and a neuro-physiological sensor configured to generate a neuro-physiological signal representing a neuro-physiological characteristic of a user viewing the display, the image processing unit operable to: receive the neuro-physiological signal from the neuro-physiological sensor; capture and classify episodic events in the neuro-physiological signal, in multi-channel neuronal paths; determine a region of interest in the scene according to information in the neuronal paths; provide, using an indicator, an indication of the presence of the region of interest in the scene; extract visual features from within the region of interest; and identify an object within the region of interest by analyzing the visual features.