Maybe your friend is just ignorant if they are purely psych and not well versed in cognitive-neuroscience, which may be the best field for investigating and und

Maybe your friend is just ignorant if they are purely psych and not well versed in cognitive-neuroscience, which may be the best field for investigating and understanding modern day tech addictions via fMRI brain scans, etc. I wouldn't expect the field of Psychology to lead research in the area, as you also concluded in your closing statement.