# Electrophysiological Study of the Functioning of Magnocellular Visual Pathway in Regular Cannabis Users

> **NCT02864680** · NA · COMPLETED · sponsor: **Central Hospital, Nancy, France** · enrollment: 163 (actual)

## Conditions studied

- Cannabis Use

## Interventions

- **OTHER:** Electroretinography
- **OTHER:** Contrast sensitivity test during Electroencephalography
- **OTHER:** Visual simultaneity test during Electroencephalography
- **OTHER:** Face perception test during Electroencephalography
- **OTHER:** CAST (cannabis abuse screening test)
- **OTHER:** PANSS (Positive And Negative Symptoms Scale) test
- **OTHER:** Delayed Matching to Sample (DMS) test
- **OTHER:** Spatial Working Memory (SWM) test
- **OTHER:** Rapid Visual Information Processing (RVP) test
- **OTHER:** Test for attentional performance (TAP) / Divided Attention
- **OTHER:** Collection of saliva sample

## Key facts

- **NCT ID:** NCT02864680
- **Lead sponsor:** Central Hospital, Nancy, France
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2014-02
- **Primary completion:** 2019-06
- **Final completion:** 2019-06
- **Target enrollment:** 163 (ACTUAL)
- **Last updated:** 2021-04-29


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02864680

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02864680, "Electrophysiological Study of the Functioning of Magnocellular Visual Pathway in Regular Cannabis Users". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT02864680. Licensed CC0.

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