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The effects of a combination of natural ingredients on cognition in healthy young volunteers

Completed
Conditions
geen aandoening
nvt
Registration Number
NL-OMON43125
Lead Sponsor
niversiteit Maastricht
Brief Summary

Not available

Detailed Description

Not available

Recruitment & Eligibility

Status
Completed
Sex
Not specified
Target Recruitment
21
Inclusion Criteria

18-35 years of age
Healthy
normal static binocular acuity (corrected or uncorrected)
willingness to sign informed consent

Exclusion Criteria

history of cardiac, hepatic, renal, pulmonary, neurological, gastrointestinal, haematological or
psychiatric illness, are excessive drinking (>20 glasses of alcohol containing beverages a week),
pregnancy or lactation, use of medication other than oral contraceptives, use of recreational drugs
from 2 weeks before until the end of the experiment, and any sensory or motor deficits which could
reasonably be expected to affect test performance. Those volunteers who have a first-degree
relative with a psychiatric disorder or a history of a psychiatric disorder will also be excluded.

Study & Design

Study Type
Interventional
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
<p>The primary outcome measure is the number of recalled words in a verbal word<br /><br>learning task.</p><br>
Secondary Outcome Measures
NameTimeMethod
<p>The following secundary measures will be examined in this study:<br /><br>* The number of words memorized long-term in a verbal learning task.<br /><br>* De recognition of words in a verbal learning task.<br /><br>* The number of correct responses in a working memory task.<br /><br>* The performance on the Stroop to measure attention and inhibition.<br /><br>* The performance on the Digit symbol substitution task to assess complex<br /><br>scanning.<br /><br>* The speeds of responding in combination with correct responses in a<br /><br>psychomotor task. </p><br>
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