Cross-modal validation of picture stimuli in addictive disorders and healthy individuals using eye-tracking.

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00015187

Enrollment

100

Registered

2018-07-30

Start date

2018-12-30

Completion date

Unknown

Last updated

2025-12-08

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

Conditions

Healthy individuals F17 F10 E66

Interventions

Group 1: Comparison of four study groups (1: alcohol-dependent patients

2: nicotine-dependent subjects

3: Obese patients (AMENDEMENT: before and after bariatric surgery)

4: Healthy control subjects) by eye-tracking with examination of eye movements and measurement of the attentional bias on image stimuli of various categories (alcohol, neutral, food, tobacco), questio

Eligibility

Sex/Gender

All

Age

18 Years to 65 Years

Inclusion criteria

Inclusion criteria: •Men and Women between 18 and 65 years •Group 1: Patients with alcohol use disorder(DSM 5) •Group 2: Individuals with nicotine dependence (DSM 5) •Group 3: Patients with Adipositas (WHO); BMI >30kg/m2, AMENDMENT: before and after bariatric surgery •Group 4: Healthy individuals •Capacity to provide informed consent •Written Informed Consent •Normal vision

Exclusion criteria

Exclusion criteria: •Withdrawal of the declaration of consent • severe withdrawal symptoms (CIWA-R> 4) • Alcohol intoxication (breath alcohol concentration> 0.3 ‰) • withdrawal complications or severe withdrawal symptoms in the past • Axis I disorder according to ICD-10 and DSM 5 (except for alcohol dependence / nicotine dependence or nicotine abuse and specific phobia within the last 12 months) • Pharmacotherapy with psychoactive substances within the last 14 days • Current substance abuse (THC, amphetamine, opiates, benzodiazepines, barbiturates or cocaine) • wearing glasses (without the possibility to wear contact lenses)

Design outcomes

Primary

Measure	Time frame
The aim of the study is to detect the difference in the temporal duration of the visual fixation of individual image stimuli of different Stimuluskategorien (alcohol, neutral, tobacco, food) in milliseconds after the measurement has been completed and compared with to other test groups	—

Secondary

Measure	Time frame
Saccades using eye-tracking; Rating of Images using Computer based self-assessment manikin scales for valence, arousal and craving	—

Countries

Germany

Contacts

Public ContactPatrick Bach

Zentralinstitut für Seelische Gesundheit Mannheim

patrick.bach@zi-mannheim.de062117030

Outcome results

None listed

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