What IS personality? Are you born with your personality or is it shaped by experience?  Can we change our personalities? Dr Katriona O’Sullivan, from Maynooth University’s Psychology Department, takes Brendan on a whistlestop tour of some of the thinking behind personality, and some of the main models.

Brendan O'Connor has all you need for the weekend with time to pause and reflect on the week just gone. Featuring a selection of human interest, consumer and lifestyle stories, as well as keeping you up to date on the news stories that matter. Listen live Saturday and Sunday at 11am - 1pm on RTÉ Radio 1.