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Effects of Time of Day and Nut Intake on Cognitive Performance
This is a 2 x 2-factor crossover design study to investigate the effects of time of day and nuts on post-meal cognitive performance.
Study details:
In this trial, eligible participants will receive isocaloric meals with or without nuts at lunchtime and dinner time. Cognitive performance will be performed before and 90 min after the meals.
Eligibility criteria
Researchers look for people who fit a certain description, called eligibility criteria. See if you qualify.
Inclusion criteria
Exclusion criteria
Eligibility
Age eligible for study : 18 and older
Healthy volunteers accepted : Yes
Gender eligible for study: All
Things to know
Study dates
Study start: 2024-04-08
Primary completion: 2025-02-28
Study completion finish: 2025-06-30
Study type
PREVENTION
Phase
NA
Trial ID
NCT06343142
Intervention or treatment
OTHER: Nuts
OTHER: Nut-free meal
Conditions
- • Cognitive Performance
Find a site
Closest Location:
Department of Nutrition, Dietetics and Food - Monash University
Research sites nearby
Select from list below to view details:
Department of Nutrition, Dietetics and Food - Monash University
Notting Hill, Victoria, Australia
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?
Participant Group/Arm | Intervention/Treatment |
---|---|
PLACEBO_COMPARATOR: Lunch nut-free meal
| OTHER: Nut-free meal
|
EXPERIMENTAL: Lunch nut meal
| OTHER: Nuts
|
PLACEBO_COMPARATOR: Dinner nut-free meal
| OTHER: Nut-free meal
|
EXPERIMENTAL: Dinner nut meal
| OTHER: Nuts
|
What is the study measuring?
Primary outcome
Primary Outcome Measure | Primary Outcome Description | Primary Outcome Time Frame |
---|---|---|
N-back task - accuracy | Difference in the total accuracy | before meal x 90 min post-meal |
N-back task - matched responses | Difference in the % matched responses | before meal x 90 min post-meal |
N-back task - false alarm | Difference in the % false alarm | before meal x 90 min post-meal |
N-back task - reaction time | Difference in the reaction time for correct matched responses | before meal x 90 min post-meal |
Stroop test - congruent | Difference in the reaction time for congruent | before meal x 90 min post-meal |
Stroop test - incongruent | Difference in the reaction time for incongruent | before meal x 90 min post-meal |
Stroop test - interference | Difference in stroop interference (incongruent - congruent response time) | before meal x 90 min post-meal |
Secondary outcome
Secondary Outcome Measure | Secondary Outcome Description | Secondary Outcome Time Frame |
---|---|---|
Multitasking - pure blocks | Difference in the reaction time for pure blocks | before meal x 90 min post-meal |
Multitasking - mixed blocks | Difference in the reaction time for mixed blocks | before meal x 90 min post-meal |
Multitasking - mixing cost | Difference in mixing cost (mixed - pure reaction time) | before meal x 90 min post-meal |
Satiety - hunger | Difference in postprandial hunger | Hunger will be assessed with a visual analog scale before the meal and 4 times after the meal (15, 30, 60 and 90 mins). |
Satiety - fullness | Difference in postprandial fullness | Fullness will be assessed with a visual analog scale before the meal and 4 times after the meal (15, 30, 60 and 90 mins). |
Satiety - satisfaction | Difference in postprandial satisfaction | Satisfaction will be assessed with a visual analog scale before the meal and 4 times after the meal (15, 30, 60 and 90 mins). |
Satiety - eating capacity | Difference in postprandial eating capacity, | Eating capacity will be assessed with a visual analog scale before the meal and 4 times after the meal (15, 30, 60 and 90 mins). |
Satiety index | Difference in postprandial satiety index, calculated using the mean of the four satiety questions, where "hunger" and "eating capacity" will be scored in an inverse way than "fullness" and "satisfaction". | Satiety index will be assessed before the meal and 4 times after the meal (15, 30, 60 and 90 mins). |
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