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LREC 2016 Workshop. Resources and Processing of Linguistic and Extra-Linguistic Data from People with Various Forms of Cognitive/Psychiatric Impairments (RaPID-2016)
Auditory hallucinations are common in people who experience psychosis and psychotic-like phenomena. This exploratory study aimed to establish the feasibility of harvesting and mining datasets from unsolicited Twitter posts to identify potential auditory hallucinations. To this end, several search queries were defined to collect posts from Twitter. A training sample was annotated by research psychologists for relatedness to auditory hallucinatory experiences and a text classifier was trained on that dataset to identify tweets related to auditory hallucinations. A number of features were used including sentiment polarity and mentions of specific semantic classes, such as fear expressions, communication tools and abusive language. We then used the classification model to generate a dataset with potential mentions of auditory hallucinatory experiences. A preliminary analysis of a dataset (N = 4957) revealed that posts linked to auditory hallucinations were associated with negative sentiments. In addition, such tweets had a higher proportionate distribution between the hours of 11pm and 5am in comparison to other tweets.