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The acute mania of King George III: A computational linguistic analysis

The acute mania of King George III: A computational linguistic analysis
The acute mania of King George III: A computational linguistic analysis
We used a computational linguistic approach, exploiting machine learning techniques, to examine the letters written by King George III during mentally healthy and apparently mentally ill periods of his life. The aims of the study were: first, to establish the existence of alterations in the King’s written language at the onset of his first manic episode; and secondly to identify salient sources of variation contributing to the changes. Effects on language were sought in two control conditions (politically stressful vs. politically tranquil periods and seasonal variation). We found clear differences in the letter corpus, across a range of different features, in association with the onset of mental derangement, which were driven by a combination of linguistic and information theory features that appeared to be specific to the contrast between acute mania and mental stability. The paucity of existing data relevant to changes in written language in the presence of acute mania suggests that lexical, syntactic and stylometric descriptions of written discourse produced by a cohort of patients with a diagnosis of acute mania will be necessary to support the diagnosis independently and to look for other periods of mental illness of the course of the King’s life, and in other historically significant figures with similarly large archives of handwritten documents.
Rentoumi, Vassiliki
07b62aa8-85f7-4f24-bb5f-4e7990d3fd24
Peters, Timothy
bb4ce8c9-fc0e-4221-a122-19343a82a694
Conlin, Jonathan
3ab58a7d-d74b-48d9-99db-1ba2f3aada40
Garrard, Peter
9016944f-8766-4df5-83bc-5fda650bd22e
Rentoumi, Vassiliki
07b62aa8-85f7-4f24-bb5f-4e7990d3fd24
Peters, Timothy
bb4ce8c9-fc0e-4221-a122-19343a82a694
Conlin, Jonathan
3ab58a7d-d74b-48d9-99db-1ba2f3aada40
Garrard, Peter
9016944f-8766-4df5-83bc-5fda650bd22e

Rentoumi, Vassiliki, Peters, Timothy, Conlin, Jonathan and Garrard, Peter (2017) The acute mania of King George III: A computational linguistic analysis PLoS ONE, 12, (3) (doi:10.1371/journal.pone.0171626).

Record type: Article

Abstract

We used a computational linguistic approach, exploiting machine learning techniques, to examine the letters written by King George III during mentally healthy and apparently mentally ill periods of his life. The aims of the study were: first, to establish the existence of alterations in the King’s written language at the onset of his first manic episode; and secondly to identify salient sources of variation contributing to the changes. Effects on language were sought in two control conditions (politically stressful vs. politically tranquil periods and seasonal variation). We found clear differences in the letter corpus, across a range of different features, in association with the onset of mental derangement, which were driven by a combination of linguistic and information theory features that appeared to be specific to the contrast between acute mania and mental stability. The paucity of existing data relevant to changes in written language in the presence of acute mania suggests that lexical, syntactic and stylometric descriptions of written discourse produced by a cohort of patients with a diagnosis of acute mania will be necessary to support the diagnosis independently and to look for other periods of mental illness of the course of the King’s life, and in other historically significant figures with similarly large archives of handwritten documents.

Text Jonathan Conlin - The acute mania of King George III - Version of Record
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Accepted/In Press date: 22 January 2017
e-pub ahead of print date: 22 March 2017
Organisations: History

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Local EPrints ID: 407383
URI: http://eprints.soton.ac.uk/id/eprint/407383
PURE UUID: 48ccc6ff-fbbb-4bf2-b736-6921e5572908

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Date deposited: 05 Apr 2017 01:05
Last modified: 20 Nov 2017 17:32

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Contributors

Author: Vassiliki Rentoumi
Author: Timothy Peters
Author: Jonathan Conlin
Author: Peter Garrard

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