[lowleveldrone]

Psychology is a very broad area and it's not fair to judge it based upon Dr. Phil style counselling or literary criticism.

The psychologists I've worked with design experiments to attempt to determine fundamental mental capabilities in terms of perception, memory, spatial reasoning, etc. and how this can be applied to design safe and effective user interfaces, in particular for safety critical systems like aircraft.

Sure, the models they develop are likely just useful approximations, but it seems that models at the neuron level would be too unwieldy for these sorts of questions anyway.