Sentence:  I'm rose-tinting my teenage years, for sure, but Twenge isn't the only generational-change researcher to <WSD>finger</WSD> the ubiquitous smartphone for contributing to higher rates of teen depression and anxiety. 
Meaning of the word marked with <WSD> tags:  To identify or point out. Also "put the finger on". To report to or identify for the authorities, rat on, rat out, squeal on, tattle on, turn in, to finger.