"Psychological conditions often arise from macropsia, but the general consensus is that they do not cause macropsia. Those afflicted may experience extreme anxiety both during and after episodes as a result of the overwhelming nature of his or her distorted visual field. Due to the fear and anxiety associated with the condition, those who have previously suffered an episode hesitate to recount the episode, although retain the ability to do so.

Psychologically, a person with macropsia may feel separation and dissociation from the outside world and even from immediate family. This feeling of dissociation has mostly been noted in child or adolescent patients. The patient may feel that he or she must unfairly contend with hostile and aggressive forces due to the gigantic nature of the surrounding environment."

From: http://en.wikipedia.org/wiki/Macropsia