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“Is this me ‘speaking’?” Auditory Network Modulation using Transcranial Direct Current Stimulation (tDCS) and its Influence on the Perception of Inner Speech: a Non-clinical rossover Trial with Healthy Subjects

“Is this me ‘speaking’?” Auditory Network Modulation using Transcranial Direct Current Stimulation (tDCS) and its Influence on the Perception of Inner Speech: a Non-clinical rossover Trial with Healthy Subjects

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00011695
Enrollment
60
Registered
2017-02-06
Start date
2017-03-01
Completion date
Unknown
Last updated
2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Volunteers

Interventions

Group 1: EEG with 30 min simultaneous tDCS (cross-over design, one session verum, one session sham, random order of sessions) Group 2: MRI with 30 min simultaneous tDCS (cross-over design, one session

Sponsors

UNIVERSITÄRE PSYCHIATRISCHE DIENSTE BERN (UPD) AGUNIVERSITÄTSKLINIK FÜR PSYCHIATRIE UND PSYCHOTHERAPIEZentrum für Translationale ForschungSystemische Neurowissenschaften der Psychopathologie
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 64 Years

Inclusion criteria

Inclusion criteria: - informed consent - age 18-64 - right-handed

Exclusion criteria

Exclusion criteria: - psychiatric or neurological disorder(s) - other clinical significant illness(es) - illness of the scalp - drug or alcohol abuse - psychiatric history - MRI exclusion criteria (e.g. non-removable metallic components, cardiac pacemaker, insulin pump, tattoos near the head, permanent make-up, claustrophobia) - female participants: pregnancy, breast feeding

Design outcomes

Primary

MeasureTime frame
ISQ (Inner speech questions): subjective measure of inner speech quality while producing inner speech Neurobiological changes (MRI/EEG) by tDCS—

Secondary

MeasureTime frame
Reaction time and error rate in the inner speech tasks Questionnaires measuring personality traits (LSHS-R), Peters Delusion Inventory (PDI), Schizotypal Personality Questionnaire (SPQ) potential predictors for neurobiological changes caused by tDCS—

Countries

Switzerland

Contacts

Public ContactKatharina Kunzelmann

UNIVERSITÄRE PSYCHIATRISCHE DIENSTE BERN (UPD) AGUNIVERSITÄTSKLINIK FÜR PSYCHIATRIE UND PSYCHOTHERAPIEZentrum für Translationale ForschungSystemische Neurowissenschaften der Psychopathologie

katharina.kunzelmann@upd.unibe.ch+41 31 932 87 07

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026