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Matthew Gratton

3 papers in the library · publishing 2024-2026

Papers

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0123 Large Language Model-Derived Dream Affect is a Prospective Predictor of PTSD Symptoms in Hospitalized Trauma Patients

Sleep May 1, 2026 Holland Doise, A. Gonzalez Quesada, Garrett Baber et al.

Abstract Introduction Nightmares are associated with more severe posttraumatic stress disorder (PTSD). The advent of large language models (LLM) offers unique advantages to efficiently code affective dream content over human methods, which can be resource intensive and prone to error. This study tested whether dream affect (DA), measured via self-report, human-rated narrative coding, and LLM...

0429 DreamGPT: Validation of ChatGPT as a Tool for Emotion Analysis in Dream Reports

Sleep May 19, 2025 Garrett Baber, Nancy Hamilton, Matthew Gratton

Abstract Introduction Dream reports provide unique insights into emotional processing during sleep. While self-reports are the gold standard for assessing dream affect, natural language processing (NLP) tools like ChatGPT may offer scalable alternatives. This study evaluated ChatGPT’s ability to estimate positive and negative affect from dream reports, comparing its performance against...

0139 Testing the Mood Regulatory Hypothesis of Dreaming

Sleep April 20, 2024 Garrett Baber, Daiil Jun, Jeffrey M. Girard et al.

Abstract Introduction Dreaming has been theorized to facilitate fear extinction learning in a manner akin to desensitization therapy. A testable hypothesis from this theory is that the experience of fear in dreams leads to lower subsequent daytime negative affect. This study employed a novel natural language processing tool and multilevel modeling to test whether fear in dreams led to...