Over many decades, under a medical model, variations in the human brain have come to be labelled disorders as a result of a paradigm that considers anything that differs too much from the statistical norm (the average) to be abnormal or disordered.   The word "neurodiversity" refers to variations in the human brain that influence how we think, process information, learn, behave, experience our senses, socialise and communicate.  Neurodiversity affirming practice in psychology values the rich diversity of our human minds, challenges long held assumptions and biases, honours individual differences, and provides support that is not focused on changing who a person is or conforming to arbitrary norms (becoming more 'normal').