Bartlett's theory explains that memory is not remembered accurately but instead is an "active reconstruction" of what has happened based off of our schemas, mental preconceptions of a person, object, event etc. Bartlett explains that how we interpret our memories and experiences are affected by these schemas. Our schemas affect our memories in many ways, through familiarisation, when we change unfamiliar details to align with our schemas, rationalisation, where we add in additional details to our recalled memories in order to give a reason to something that may not have logically fitted with our schema's earlier, omission, leaving out unfamiliar, unpleasant, irrelevant details when remembering something, confabulation, where our schemas "fill in the blanks" based on our previous experiences/understandings or accommodation, where we change information to fit our schemas. Because of Bartlett's research police interviews are now designed to ensure a witness to a crime does not actively reconstruct their memory, as this could lead to wrongful convictions, these are called cognitive interviews.