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Theanine and Caffeine on Neurophysiology of Attention

NCT02770105 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 9

Last updated 2016-09-02

No results posted yet for this study

Summary

L-theanine and caffeine are nutritional compounds that are naturally found in tea. Our recent findings using an EEG paradigm are consistent with the findings of others, indicating that intake of L-theanine and caffeine reduce the time needed for a person to differentiate between two visual stimuli and react to only one stimulus. In order to understand how these compounds give rise to these improvements, the investigators need to study how these compounds are related to various areas of the brain. To achieve this, the investigators plan to scan the brains of nine participants after they take either 1) L-theanine alone, 2) caffeine alone 3) the combination of both L-theanine and caffeine as compared with a placebo (distilled water), to see which has the greatest impact on attention and on regions in the brain that bring about attention.

Conditions

  • L-theanine

Interventions

OTHER

Theanine

Oral administration of 200mg of L-theanine powder dissolved in 200ml of distilled water

OTHER

Caffeine

Oral administration of 160mg of anhydrous caffeine powder dissolved in 200ml of distilled water

OTHER

Theanine-Caffeine Combination

Oral administration of 200mg of L-theanine and 160mg of anhydrous caffeine powder, dissolved in 200ml of distilled water

OTHER

Placebo

Oral administration of 200ml of distilled water

Sponsors & Collaborators

  • Texas Tech University

    lead OTHER

Principal Investigators

  • Martin Binks, PhD · Texas Tech University - Department of Nutritional Sciences

Study Design

Masking
SINGLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
60 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2016-05-31
Primary Completion
2016-06-30
Completion
2016-06-30

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02770105 on ClinicalTrials.gov