Interview with FORTUNE magazine

I gave a few quote to Jessica Hullinger on the psychology behind Twitter and Facebook’s use of icons

“As they seek to completely dominate the entire Internet, it becomes not economically viable to translate everything into local languages,” says McMahon. “So they’re trying to go for primeval symbols anybody can understand but that is going to be one hell of a psychological task.”

Why Social Media Deliberately Manipulate Your EmotionsFortune, December 30th 2015..

Why do we ‘like’ social media? – The Psychologist

I have a new article over on the British Psychological Society’s publication, The Psychologist.

It has been around a decade since social networking websites first entered public consciousness – now they seem like an indispensable part of daily life for many of us. What has psychological research shown about why these sites have become so popular?

Read the whole piece at the link below:

Mc Mahon, C. (2015). Why do we ‘like’ social media? The Psychologist, 28(9), 724-729.

Why do we argue online


I’m quoted in this article about arguments on the internet:

“…the internet is a shared and communal space. While it’s almost entirely privately owned, we treat it like a public sphere, like a commons or wilderness. We each try to mark out our own personal corners, as in our social-media profiles – though, unlike marking out our physical spaces, like a garden or allotment, we can’t easily fence them off. When you realise that anyone can read what you put online, link to it and pass comment on it, you can only conclude that the internet is fundamentally a contested space.”

Why do we argue online, The Irish Times