Pervasive Refusal Syndrome is the clinical situation where you think that your spouse or or well known close one has been replaced by a clone (or robot by the aliens).

The explanation for this is that the part of the brain that recognises the face is unable due to damage to consciously link with the part of the brain that associates the emotional experiences.

The unconscious thus comes up with a perfectly logical explanation as to why you think you recognise this person, but know that they are someone different.


Religious explanations and other myths are similar creations of teh unconcious mind.