Computerized text and voice analysis - a single case study of seven chronically schizophrenic patients in art therapy

ISRCTN ISRCTN12365070
DOI https://doi.org/10.1186/ISRCTN12365070
Submission date
09/01/2022
Registration date
12/01/2022
Last edited
13/02/2024
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Mental and Behavioural Disorders
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
Schizophrenia is a severe long-term mental health condition. It causes a range of different psychological symptoms. The person may not always be able to distinguish their own thoughts and ideas from reality.
The present exploratory study of patients suffering from a chronic course of schizophrenia aims to clarify whether group art therapy followed by therapist-guided discussion of their paintings can influence patients' communication behavior and individual emotional spectrum (definition of primary endpoints).
Potential indicators or surrogates for communication behavior and individual spectrum of predominant emotions should be found in features of voice and speech. For this purpose, two validated scientific automated analysis procedures are used, which are expected to provide an objective quantitative assessment of such characteristics. Seven patients with chronic schizophrenia in a non-clinical inpatient institution for the mentally ill with permanent indigence are recruited.

Who can participate?
Patients aged 18 years or above suffering from Paranoid schizophrenia for at least ten years, who show a preference for art therapy

What does the study involve?
The sample engaged in pictorial activity as part of their weekly group art therapy. In a one-on-one interview after three or four days, study participants were invited to talk with the author about the paintings they had created.

What are the possible benefits and risks of participating?
The selection process for this six-month group art therapy and the digital recording of the interviews for subsequent scientific analysis are the only features that could be perceived as invasive or alienating from the patients' perspective. Thus, for patients with paranoid experiences, the digital recording of the interviews with a table microphone may indeed be considered a psychological burden.

Where is the study run from?
AWO Social Psychiatric Institution Marienheim Peiting (Germany)

When is the study starting and how long is it expected to run for?
December 2015 to October 2016

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Mrs Yvonne Sprotte, sprotteyvonne@gmail.com

Contact information

Mrs Yvonne Sprotte
Principal Investigator

Franz-von-Heeren-Strasse 8
Rottenbuch
D-82401
Germany

ORCiD logoORCID ID 0000-0001-5368-5320
Phone +49 (0) 176 4900 2636
Email sprotteyvonne@gmail.com

Study information

Study designInterventional non-randomized
Primary study designInterventional
Secondary study designNon randomised study
Study setting(s)Other
Study typeTreatment
Participant information sheet 40910 PIS.pdf
Scientific titleComputerized automated text and voice analysis to detect therapeutic change in art therapy - a single case analysis on seven patients with chronic schizophrenia
Study acronymlivopict-study
Study objectivesThe therapist-guided, standardized interview about their own pictures creates the protected setting in which it is possible for these patients to express themselves not only about their pictures but also about themselves. During 25 weekly art therapies and subsequent interviews, changes in communication behavior are thus expected, which are reflected in the paraverbal signals of speech and voice.
Ethics approval(s)Due to the lack of invasiveness of the study approach, the study supervisory team did not initially consider an ethics vote to be necessary.
Thus, a subsequent vote in the sense of ethical clearance was granted on 11/05/2017 by the chairman of the ethics committee of the University of Augsburg (Prof. Dr. Ulrich M. Gassner, Mag. rer. publ. M. Jur. (Oxon.) Faculty of Law, P.O. Box 86135 Augsburg, Germany; + 49 (0) 821 598 4600; ulrich.gassner@jura.uni-augsburg.de
Health condition(s) or problem(s) studiedParanoid schizophrenia (F 20.0), Schizophrenic residual (F20.5)
InterventionThis is an explorative monocentric art therapy study in the form of a quantitative single-case study (n-of-one-trial without baseline) in seven patients with chronic schizophrenia. The interventions consist of therapist-guided interviews with patients about their images, which are digitally recorded and analyzed using both text and voice analysis software.
This dual study approach of digitized interviews allows correlations between the two portions of the recorded voice samples and forms the internal control in the study approach.

The sample of seven patients with chronic schizophrenia (n=7), defined under inclusion and exclusion criteria, engaged in pictorial activity as part of their weekly group art therapy (non-invasive portion of the studies intervention: image creation, IC). In a one-on-one interview after three or four days, study participants were invited to talk with the author about the paintings they had created. An interview developed especially for the study served as a guide and, above all, as a standardized stimulus for the patients' statements (therapist-guided picture discussion, TGPD).
Intervention typeBehavioural
Primary outcome measureThe verbal (linguistic) and paraverbal (affective) portions of the communication behavior will be preserved in the digital audio documents of the interviews on a weekly basis and at up to 19 measurement time points over the study period of 25 weeks. They are extracted and analyzed using the text analysis software LIWC2015 (Linguistic Inquiry and Word Count 2015) and the voice analysis software VocEmoApI (Vocal Emotion Recognition by Appraisal Inference).
Secondary outcome measuresThere are no secondary outcome measures
Overall study start date10/12/2015
Completion date29/10/2016

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants15
Total final enrolment15
Key inclusion criteria1. Minimum age of 18 years
2. Paranoid schizophrenia (F20.0) with chronic course of at least ten years or/and
3. Schizophrenic residual (F20.5)
4. Stable medication of psychotic symptoms for at least three months
5. A preference for artistic therapies (art therapy)
6. The presence of written informed consent
Key exclusion criteria1. Primary addictive disorder
2. Acute accessory symptoms
3. Suicidality
4. Intelligence impairment
5. Brain organic disorder
6. Autistic disorder
7. Personality disorder
8. Visual impairment
9. Language barrier
10. Hemiparesis including speech disorder
11. Moving out soon
12. Participation in another creative therapy (in group or/and individual therapy)
Date of first enrolment12/02/2016
Date of final enrolment08/04/2016

Locations

Countries of recruitment

  • Germany

Study participating centre

Marienheim - house for mentally ill people
Bahnhofstrasse 15
Peiting
D-86971
Germany

Sponsor information

University of Augsburg
University/education

Chair of Art Education
Universitätsstrasse 26
Augsburg
D-86135
Germany

Phone +49 (0) 821 598 - 2929
Email kunst.paedagogik@phil.uni-augsburg.de
Website https://www.uni-augsburg.de/de/fakultaet/philsoz/fakultat/kunstpaedagogik/
ROR logo "ROR" https://ror.org/03p14d497
Marienheim
Other

Bahnhofstrasse 15
Peiting
D-86971
Germany

Phone +49 (0) 8861 713 922 0
Email info@ste-pei.awo-obb.de
Website https://www.marienheim-peiting.de

Funders

Funder type

Other

Investigator initiated and funded

No information available

Results and Publications

Intention to publish date01/03/2022
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryStored in publicly available repository, Available on request
Publication and dissemination planThe study was conducted as part of my dissertation. After the defense on 27/01/2022, I will publish my dissertation in an international publishing house.
IPD sharing planThe data sets generated and analyzed as part of the current study are available upon request from Yvonne Sprotte, sprotteyvonne@gmail.com.
Documentation in zenodo.org is in progress.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet 12/01/2022 No Yes
Results article 01/03/2022 02/03/2022 Yes No
Results article 25/09/2023 13/02/2024 Yes No

Additional files

40910 PIS.pdf

Editorial Notes

13/02/2024: Publication reference added.
02/03/2022: The following changes were made to the trial record:
1. The sponsor email was changed.
2. Publication reference added.
12/01/2022: Trial's existence confirmed by University of Augsburg