A happy ending? Not really. Berger developed and used EEG to detect signs of human psychic activity. The popular press was enthusiastic about the technology, but scientists met Berger's direction of research with skepticism. Eventually, funds dried up and "without any prospect of pursuing the project further, Berger, depressed, committed suicide on June 1, 1941."
At the same time, clinical psychiatrists who used the same technology to solve a different problem (detection of brain disorders), succeeded beyond all expectations:
Same technology, drastically different results in its application.
Source: Cornelius Borck. 2005. WRITING BRAINS: Tracing the Psyche With the Graphical Method. History of Psychology. 2005, Vol. 8, No. 1, 79–94. DOI: 10.1037/1093-4510.8.1.79
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