Serotonin and Motor Plasticity

The Effects of Serotonergic Challenge on Motor Learning and Neuroplasticity

With this study, the investigators aim to test whether acute administration of selective serotonin reuptake inhibitors (SSRI) improves motor performance in a sequential motor learning task in comparison to placebo in healthy humans.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Microdialysis findings in animal models provide evidence for a monoaminergic augmentation of motor function. However, this evidence is largely limited to noradrenaline and dopamine, with little evidence to support a similar effect for serotonin. What remains to be tested therefore, is whether acute serotonergic administration induces neural or behavioral changes during motor learning also. Using a sample of 60 female participants (with the possible inclusion of male participants at a later date), the investigators aim to test the effects of a serotonergic challenge on motor learning and plasticity in healthy participants.

Study Type

Interventional

Enrollment (Anticipated)

60

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

    • Saxony
      • Leipzig, Saxony, Germany, 04103
        • Recruiting
        • Max Planck Institute for Cognition and Brain Sciences
        • Contact:
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years to 40 years (ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • female
  • right-handed
  • healthy
  • has taken oral contraceptives (ovulation inhibitor) continuously for at least 3 months
  • has read and agreed to study parameters

Exclusion Criteria:

  • tattoos on head or neck
  • non-removable metal on or in body
  • alcohol abuse
  • is currently taking medication
  • smokes more than 3 cigarettes per day
  • positive drug test
  • pregnancy
  • plays an instrument professionally
  • plays videogames more than 2 hours per week
  • is a professional athlete
  • suffers from migraines
  • has taken part in another study, where motor learning skills and/or medication is a factor, in the last 3 months
  • heart rhythm disorders (long QT)
  • hypertension
  • calcium or magnesium deficiency
  • neurological disorders
  • chronic metabolic disorders
  • liver or kidney diseases
  • immunodeficiency
  • endocrine disorders
  • psychiatric disorders
  • tumors
  • injuries to the head and brain

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: BASIC_SCIENCE
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: DOUBLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: Interventional group
Half of the participants (n = 30) will receive 20mg of the SSRI Escitalopram.
Experimental group participants (n = 30) will receive 20 mg of Escitalopram for 7 days.
PLACEBO_COMPARATOR: Control group
Half of the participants ( n= 30) will receive the placebo.
Control group participants (n = 30) will receive a placebo for 7 days.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Pinch Force Task.
Time Frame: 1 week
The primary outcome measure will be reaction time and accuracy of motor responses, as measured by the Pinch Force Task. This will be applied to both the experimental (SSRI) and control (Placebo) groups.
1 week

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Collaborators

Investigators

  • Study Chair: Arno Villringer, Max Planck Institute for Human Cognitive and Brain Sciences
  • Study Director: Julia Sacher, Max Planck Institute for Human Cognitive and Brain Sciences

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

April 1, 2017

Primary Completion (ANTICIPATED)

November 30, 2017

Study Completion (ANTICIPATED)

November 30, 2017

Study Registration Dates

First Submitted

May 18, 2017

First Submitted That Met QC Criteria

May 19, 2017

First Posted (ACTUAL)

May 22, 2017

Study Record Updates

Last Update Posted (ACTUAL)

May 22, 2017

Last Update Submitted That Met QC Criteria

May 19, 2017

Last Verified

May 1, 2017

More Information

Terms related to this study

Other Study ID Numbers

  • MaxPlanckHCBS

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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