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John Gallacher

BA Hons (Oxon)


Oxford Centre for the Study of Intergroup Conflict (Hewstone Lab)

  • Cyber Security Centre for Doctoral Training

Online Intergroup Contact

My research focuses on the security implications of online intergroup contact, helping us to better understand digital security challenges ranging from online political extremism and radicalisation, to polarisation arising from online social media 'echo chambers'. 

I am a student within the Oxford Cyber Security Centre for Doctoral Training, currently working in the Department for Experimental Psychology under the supervision of Professor Miles Hewstone and Dr Marc Heerdink. 

My work combines analytic methods drawn from computer science with open source and public information from social media in order to measure how groups interact online, and how this relates to real world events. 



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