Cognitive Fatigue, Self-Regulation, and Academic Performance: A Physiological Study

Study Overview
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Brief Summary
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This study aims to examine the relationship among cognitive fatigue, self-regulation, and academic performance.

Detailed Description
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1) Sievertsen et al. (2016) have demonstrated that standardised test performance decreased with every hour later in the day and increased after a break. Hence, we hypothesise that standardised test performance would vary as a function of physiological response during cognitive fatigue. 2) Martin et al. (2019) found that those who participate in more self-regulatory activity were less susceptible to the effects of cognitive fatigue. Hence, we hypothesise that greater self-regulation may moderate the relationship between cognitive fatigue and standardised test performance. Individual differences (i.e., age, gender, caffeine and food intake, body mass index, skin temperature, sleep quality, depression, anxiety, stress, baseline physiology and behavioural performance) will be examined and accounted for.

Official Title
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Cognitive Fatigue, Self-Regulation, and Academic Performance: A Physiological Study

Conditions
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Cognitive Fatigue, Mental Fatigue, Behavioral Performance, Heart Rate Variability, Skin Conductance, Academic Performance, Self-regulation

Intervention / Treatment
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* Other: Baseline
* Other: Fatigue Manipulation


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Singapore-based Non-clinical 18-35years Exclusion Criteria: Individuals with hearing difficulties or failing to meet the minimal threshold for normal hearing Individuals with a history of ear, developmental, neurological, or psychiatric disorder

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 35 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Diagnostic
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Experimental: Fatigue Manipulation<br> | Other: Baseline<br>* 5-min urban park video clip (Presented on a TV)<br>Other: Fatigue Manipulation<br>* 20-min 2-back task (Presented on a computer)<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 2-Back Task (Change) | Change in Accuracy over time | during fatigue manipulation procedure | 
| 2-Back Task (Change) | Change in Reaction Time over time | during fatigue manipulation procedure | 
| Fatigue State Questionnaire | Fatigue State Questionnaire Score | up to 5 mins after fatigue manipulation | 
| Electrocardiograph (Change) | Change in Heart Rate Variability over time | during fatigue manipulation procedure | 
| Electrodermal Activity (Change) | Change in Skin Conductance Level over time | during fatigue manipulation procedure | 
| Electrodermal Activity (Change) | Change in Skin Conductance Response over time | during fatigue manipulation procedure | 
| Short Self-Regulation Questionnaire | Short Self-Regulation Questionnaire Score | up to 1 hour before fatigue manipulation | 
| Academic Performance | Self-reported Academic Results | up to 1 hour before fatigue manipulation |