The purpose of this study was to analyze the performance effects of a low and high dose of caffeine on a Bakan cognitive vigilance task. 69 student volunteers participated in the experiment. Participants were randomly distributed among caffeine dosage levels of 0, 20, and 200 mg. The correct response score, which was chosen as the dependent variable, was collected by the vigilance program, however reaction time and false alarm data was also evaluated. These scores were analyzed over time blocks (first, second, third, or fourth ten minute period of the forty minute task). A 3x4 mixed design ANOVA was performed on each of these data sets to determine if significant mean differences were present. The Stanford Sleepiness Scale was used to evaluate arousal levels before and after the task among caffeine conditions. The NASA TLX was also implemented post-task to evaluate task difficulty between caffeine conditions.
","abstract_html":"<p>The purpose of this study was to analyze the performance effects of a low and high dose of caffeine on a Bakan cognitive vigilance task. 69 student volunteers participated in the experiment. Participants were randomly distributed among caffeine dosage levels of 0, 20, and 200 mg. The correct response score, which was chosen as the dependent variable, was collected by the vigilance program, however reaction time and false alarm data was also evaluated. These scores were analyzed over time blocks (first, second, third, or fourth ten minute period of the forty minute task). A 3x4 mixed design ANOVA was performed on each of these data sets to determine if significant mean differences were present. The Stanford Sleepiness Scale was used to evaluate arousal levels before and after the task among caffeine conditions. The NASA TLX was also implemented post-task to evaluate task difficulty between caffeine conditions.</p>","abstract_has_math":false,"creators":["Robinson, Suzanne K."],"institution":null,"degree_name":"Master of Science in Human Factors & Systems","degree_level":"Thesis - Open Access","degree_discipline":"Human Factors and Systems","degree_department":null,"school":null,"contributors":["Steven M. Hall","Jon French","Dennis A. Vincenzi"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2002,"date_issued":"2002-10-01T07:00:00Z","date_published":"2002-10-01T07:00:00Z","updated_at":"2026-07-27T19:25:23Z","subjects":["caffeine","cognitive vigilance","Bakan","Cognitive Psychology"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://commons.erau.edu/db-theses/176","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Steven M. Hall","Jon French","Dennis A. Vincenzi"]},{"key":"dc:creator","label":"Author","values":["Robinson, Suzanne K."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Human Factors and Systems"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis - Open Access"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science in Human Factors & Systems"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["caffeine","cognitive vigilance","Bakan","Cognitive Psychology"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://commons.erau.edu/db-theses/176"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The purpose of this study was to analyze the performance effects of a low and high dose of caffeine on a Bakan cognitive vigilance task. 69 student volunteers participated in the experiment. Participants were randomly distributed among caffeine dosage levels of 0, 20, and 200 mg. The correct response score, which was chosen as the dependent variable, was collected by the vigilance program, however reaction time and false alarm data was also evaluated. These scores were analyzed over time blocks (first, second, third, or fourth ten minute period of the forty minute task). A 3x4 mixed design ANOVA was performed on each of these data sets to determine if significant mean differences were present. The Stanford Sleepiness Scale was used to evaluate arousal levels before and after the task among caffeine conditions. The NASA TLX was also implemented post-task to evaluate task difficulty between caffeine conditions.
"]},{"key":"dc:title","label":"Title","values":["The Performance Effects of a Low Dose of Caffeine on a Cognitive Vigilance Task"]}]}],"canonical_facts":{"dc:contributor":["Steven M. Hall","Jon French","Dennis A. Vincenzi"],"dc:creator":["Robinson, Suzanne K."],"dc:description.abstract":["The purpose of this study was to analyze the performance effects of a low and high dose of caffeine on a Bakan cognitive vigilance task. 69 student volunteers participated in the experiment. Participants were randomly distributed among caffeine dosage levels of 0, 20, and 200 mg. The correct response score, which was chosen as the dependent variable, was collected by the vigilance program, however reaction time and false alarm data was also evaluated. These scores were analyzed over time blocks (first, second, third, or fourth ten minute period of the forty minute task). A 3x4 mixed design ANOVA was performed on each of these data sets to determine if significant mean differences were present. The Stanford Sleepiness Scale was used to evaluate arousal levels before and after the task among caffeine conditions. The NASA TLX was also implemented post-task to evaluate task difficulty between caffeine conditions.
"],"dc:identifier":["https://commons.erau.edu/db-theses/176"],"dc:subject":["caffeine","cognitive vigilance","Bakan","Cognitive Psychology"],"dc:title":["The Performance Effects of a Low Dose of Caffeine on a Cognitive Vigilance Task"],"thesis:degree_discipline":["Human Factors and Systems"],"thesis:degree_level":["Thesis - Open Access"],"thesis:degree_name":["Master of Science in Human Factors & Systems"]},"updated_at":"2026-07-27T19:25:23Z"}