Alcoholism
The Oxford team said it was not surprising much of researchers'emphasis had focused on mothers as, in most societies, it is motherswho provide the majority of childcare - particularly when children arevery young.
But they said the role of men had been"underemphasised" and that they had more influence on their children'sdevelopment than previously thought.
In addition, the peak age for men to be affected bypsychiatric disorders is the same as the peak age for becoming a father- between 18 and 35.
Paternal depression during the postnatal period, measured at eightweeks after birth, has been associated with increasing the chance ofthe child subsequently developing behavioural and emotional problemsfrom 10% to 20%.
Teenage offspring of depressed fathers also have anincreased risk of various psychological problems, including depressionand suicidal behaviour.
Around 2% of men are affected by generalised anxietydisorder, and children whose parents have anxiety disorders have atwo-fold increased risk of developing such disorders themselves,researchers say.
Previous studies have also found links between afather's alcoholism and an increased risk of conduct disorders, wherechildren behave aggressively and destructively and abuse substances -particularly in sons.
Paternal alcoholism is also associated with anincreased risk of mood disorders, depressive symptoms, poor performanceat school, low self-esteem and problems forming relationships.
Adolescents whose parents have bipolar disorder are upto 10 times more likely than adolescents with mentally healthy parentsto develop bipolar disorder, and three to four times more likely todevelop other psychiatric illness, research suggests.
'Nurturing role'
The Oxford team, led by psychiatrist Professor Paul Ramchandani, saidmore research was needed on how fathers' psychiatric disorders affecttheir children's development.
He said: "Fathers are more involved in child-rearing in countries including the UK than they used to be.
"In years gone by, if fathers were depressed and distant it may not have made much of an impact.
"We now need a more general understanding of what effects psychiatric problems in fathers can have on children."
Emily Wooster, policy and campaign manager for the mental healthcharity Mind, said: "Men's roles in bringing up children have changedsignificantly over the last century, with many dads now taking on anactive 'nurturing role' so it's important that there is more researchinto the relationship between fathers' mental health problems and howthese may affect their children.
"Mind has found that men often have difficulties comingforward and talking about their mental health problems, perhaps becauseof the way they are socialised into being 'strong, tough men' who can'tshow their emotions."
She said the charity was due to launch a campaign nextweek calling for "male-friendly" mental health services and bettersupport for men.