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.
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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
22
Isocaloric meal with nuts
Isocaloric meal without nuts
Department of Nutrition, Dietetics and Food - Monash University
Notting Hill, Victoria, Australia
N-back task - accuracy
Difference in the total accuracy
Time frame: before meal x 90 min post-meal
N-back task - matched responses
Difference in the % matched responses
Time frame: before meal x 90 min post-meal
N-back task - false alarm
Difference in the % false alarm
Time frame: before meal x 90 min post-meal
N-back task - reaction time
Difference in the reaction time for correct matched responses
Time frame: before meal x 90 min post-meal
Stroop test - congruent
Difference in the reaction time for congruent
Time frame: before meal x 90 min post-meal
Stroop test - incongruent
Difference in the reaction time for incongruent
Time frame: before meal x 90 min post-meal
Stroop test - interference
Difference in stroop interference (incongruent - congruent response time)
Time frame: before meal x 90 min post-meal
Multitasking - pure blocks
Difference in the reaction time for pure blocks
Time frame: before meal x 90 min post-meal
Multitasking - mixed blocks
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Difference in the reaction time for mixed blocks
Time frame: before meal x 90 min post-meal
Multitasking - mixing cost
Difference in mixing cost (mixed - pure reaction time)
Time frame: before meal x 90 min post-meal
Satiety - hunger
Difference in postprandial hunger
Time frame: 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
Time frame: 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
Time frame: 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,
Time frame: 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".
Time frame: Satiety index will be assessed before the meal and 4 times after the meal (15, 30, 60 and 90 mins).