source:
http://www.fact.on.ca/Info/pas/lowen99.htm
Who is Most Likely to Practise PAS?
More then 75 per cent of mothers practise PAS, as against 25 per cent of men who alienate. Partly this is due to the view, despite the changes in social and cultural norms, that the mother is the centre of family life. Hence an alienating mother feels she has the greater input and responsibility in caring for the child than the father. Mothers who are on their own feel it is only right that they should have the main or only right to make decisions concerning their children. They will, therefore, use any weapon, fair or foul, to make certain that they have the ultimate power over their children. Among the weapons used are accusations by the mother that the father is unfit to care for or even spend any time with the child. This may be due to allegations of sexual misconduct, alcohol or drug misuse, immorality or poor mental state or lifestyle or possibly criminal involvement. Due to the closeness of the mothers and children, the children will often believe the worse of the other parent.