Antecedents
McKenna and Cutliffe (2005) define antecedents as prompts
to a concept that must exist to make the concept happen. Put
simply, antecedents are the causes or the ‘why’ of the
phenomenon. Antecedents for forgetfulness specific to older
adults include neuro-biological changes in ageing, stroke,
diagnosed memory impairment, delirium and depression
(with or without known dementia), vitamin B deficiency
and thyroid dysfunction.