Enhancing cognition in the presence of distraction and/or interruption

A computer-readable memory medium that stores program instructions executable by a processor to perform a method for modulating a difficulty level of a task forming part of a training session of repeated tasks, the training session being for enhancing cognition of an individual by training the individual to process interference in conjunction with a task, said method being implemented using a computer device having an input device (106), said method comprising:

• the computer device presenting at least a first task without interference having the difficulty level to the individual requiring a first response from the individual via the input device (106);
• the computer device presenting at least a first interference with the first task, the first task requiring a second response from the individual to the first task in the presence of the first interference via the input device (106), wherein the first interference diverts the individual's attention from the first task and is a distraction or an interruptor;
• the computer device obtaining in said computer input device (106) the individual's first and second responses to the at least a first task;
• the computer device analyzing in said computer device the individual's performance by determining a difference between the individual's performance of the first task without interference versus with interference;
• the computer device presenting said at least a first task, at least a first interference and obtaining in said computer device the individual's responses in an iterative manner;
• the computer device adjusting the difficulty level of the at least a first task based upon the individual's performance determined in the analyzing step to maintain a target performance level of the at least a first task by the user;
• and
• the computer device providing an output from the computer device indicative of the individual's cognitive function.