Since this Valentine’s Day is so close to Auden’s centenary, this (“O Tell Me the Truth About Love“) seemed appropriate:
Some say that love’s a little boy
And some say it’s a bird,
Some say it makes the world go round,
And some say that’s absurd,
And when I asked the man next-door,
Who looked as if he knew,
His wife got very cross indeed,
And said it wouldn’t do.Does it look like a pair of pajamas,
Or the ham in a temperance hotel?
Does it’s odour remind one of llamas,
Or has it a comforting smell?
Is it prickly to touch as a hedge is,
Or soft as eiderdown fluff?
Is it sharp or quite smooth at the edges?
O tell me the truth about love.
But on the topic, EurekAlert! reports that the truth about it involves mostly oxytocin and vasopressin and the regions of the brain that respond to it:
A new study of young mothers by researchers at University College London (UCL) has shown that romantic and maternal love activate many of the same specific regions of the brain, and lead to a suppression of neural activity associated with critical social assessment of other people and negative emotions. The findings suggest that once one is closely familiar with a person, the need to assess the character and personality of that person is reduced, and bring us closer to explaining why, in neurological terms, ‘love makes blind.’
In the experiment, published in February’s NeuroImage online preview edition, the brains of 20 young mothers were scanned while they viewed pictures of their own children, children they were acquainted with, and adult friends, to control for feelings of familiarity and friendship (the brain regions involved in romantic love having been identified by the authors in an earlier study).
The similarity of the activity recorded in this study compared to those obtained in the earlier study was striking; with activity in several regions of the brain overlapping precisely in the two studies. In summary, the findings showed that both types of love activate specific regions in the reward system, while reducing activity in the systems necessary for making negative judgements.